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I am preparing a chapter for my research paper and I would like to know your opinion on the possible difference between the notion of interpretability and explainability of machine learning models. There is no one clear definition of these two concepts in the literature. What is your opinion about it?
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In the realm of machine learning, the terms "interpretability" and "explainability" are often used interchangeably, but they do carry subtle differences in their connotations and implications.
**Interpretability** generally refers to the ability to understand and make sense of the internal workings or mechanisms of a machine learning model. It's about grasping how the model arrives at its predictions or decisions, often in a human-understandable manner. Interpretable models tend to have simple and transparent structures, such as decision trees or linear regression models, which allow stakeholders to follow the model's reasoning and trust its outputs.
**Explainability** on the other hand, extends beyond just understanding the model's internal workings to providing explicit explanations for its outputs or predictions. Explainable models not only produce results but also offer accompanying justifications or rationales for those results, aimed at clarifying why a certain prediction was made. This could involve highlighting important features, demonstrating decision paths, or providing contextual information that sheds light on the model's reasoning process.
In essence, interpretability is about comprehending the model itself, while explainability is about articulating the model's outputs in a way that is meaningful and useful to human stakeholders. While a model may be interpretable by virtue of its simplicity or transparency, it may not necessarily be explainable if it fails to provide clear justifications for its decisions. Conversely, a complex model may not be easily interpretable, but it can still strive to be explainable by offering insightful explanations for its predictions.
Both interpretability and explainability are crucial aspects of deploying machine learning models in real-world applications, especially in domains where trust, accountability, and regulatory compliance are paramount. By fostering understanding and trust in AI systems, interpretability and explainability pave the way for more responsible and ethical AI adoption, ultimately benefiting both developers and end-users alike.
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I'm currently analysing the results of my survey but I'm encountering the problem that my quantitative data is too similar and I'm not sure how to interpret it.
Does anyone have any advice for me or can recommend any reading about this issue?
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I would examine correlation matrices for your various scales. If the correlations are all uniformly high (say .8 and above), then that would indeed be a problem.
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Dear Fellow researchers
I am looking for a statistician who is familiar with Smart PLS-SEM model analysis and interpretation
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Yes.... How may I help you
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Dear researchers,
I'm currently conducting a direct cyclic fatigue simulation in Abaqus, but I'm encountering difficulties in analyzing the results. Despite the simulation running, I'm struggling to pinpoint the exact moment of crack initiation. Furthermore, the absence of any substantial results (as shown in the attached figure) is concerning.
I would be grateful for any assistance from the research community on the following:
Crack Initiation Identification: What are the recommended methods or visualizations within Abaqus for accurately identifying crack initiation during a direct cyclic fatigue simulation?
Interpreting Lack of Results: Could the absence of clear results be attributed to a specific problem within my model setup or analysis configuration?
Troubleshooting Strategies: Are there any general troubleshooting tips applicable to direct cyclic fatigue simulations in Abaqus that might help identify the root cause of this issue?
The attached image provides further context to the situation. I appreciate any insights or guidance you can offer.
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For Fatigue Analysis I would rather recommend to use Fe-Safe (an specialized Application for Fracture and Fatigue which comes in bundle of Simulia Abaqus software itself).
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One and two soliton solutions have been obtained while considering the protein folding mechanism of Davydov solitons. What are the dynamics of these soliton solutions that can be obtained in these studies?
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Proteins don't exist. "Proteins" is just an idea in consciousness.
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I conducted a Negative Binomial GLMM analysis on the dataset, and the results showed a significant difference with a P-value below 0.05 when I performed post hoc analyses, specifically pairwise comparisons. However, when I applied lettering to the dataset to further explore differences between groups, I found no significant distinctions. I'm unsure how to interpret these conflicting results.
I would appreciate your insights and advice on how to best address and interpret these findings.
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Conflicting results in Generalized Linear Mixed Models (GLMM) analysis could stem from variations in data, model specification, or underlying phenomena, highlighting the complexity of the studied system and the need for further investigation or model refinement.
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Hello everyone,
I'm about to start my first research project for my dissertation, and I plan to utilise Q-methodology as my research method. However, I am encountering challenges in understanding how to conduct factor analysis and subsequently interpret the data. Despite watching numerous videos and reading several journals, I haven't been able to grasp it yet. As I have no prior experience with statistics or numerical analysis, this is entirely new to me.
Would anyone be willing to share their expertise and guide me through the factor analysis stage and data interpretation process?
I would be immensely grateful for any assistance provided.
Thank you sincerely for your time and support.
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I would recommend joining the Q-Method discussion group of 800+ students and practitioners worldwide. Send the command SUB Q-METHOD YOURNAME (in upper- and/or lower-case) to [email protected].
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Hello everyone,
I am writing a systematic review about if X experimental group has superior effect than Y comparison group on outcome.
Please note that the lower the scores of the outcome, the better the results are.
to answer if there is superiority: I wanted to calcuate the effect size of each study using Hedgs g formula. I used the Comprehensive Meta-analysis (CMA) software to calculate these for me with visualization. However, I was confused when the g values were negative, so I did not know whether this shows that X group has superior effect than Y or how do I know?
other question is, some studies reported median of the outcome, instead of mean, I searched a lot how to calcuate the effect size in this case, but I did not find any. I look forward very much to your suggestions.
Best,
Ghazal Naser (senior master student)
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Hedgs G is pretty similar to Cohen's d; in fact, it is kind of like a correction for Cohen's d (see page 4: https://pubs.asha.org/doi/pdf/10.1044/cicsd_33_S_42#:~:text=This%20means%20that%20if%20repeated,a%20high%20of%201.42%20SD.)
Therefore, I'm pretty sure that a negative value interpretation is the same as with Cohen's d: i.e., negative usually means the control group had a higher mean than the treatment group. I think a lot of studies tend to use the absolute value of Cohen's d and then you look at the averages to see which is bigger, which might be what is confusing you.
If a study only reports a median, I don't know if you can calculate an effect size that requires an average from it. In some cases, it is quite impossilbe if the variance should be pooled (for many dependent samples cases). You might try emailing the authors and seeing if they're willing to either share the data or provide the average for you?
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In the context of machine learning models for healthcare that predominantly handle discrete data and require high interpretability and simplicity, which approach offers more advantages:
Rough Set Theory or Neutrosophic Logic?
I invite experts to share their insights or experiences regarding the effectiveness, challenges, and suitability of these methodologies in managing uncertainties within health applications.
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I appreciate the resources shared by R.Eugene Veniaminovich Lutsenko.
However, these references seem to focus on a different aspect of healthcare modeling. I'm still interested in gathering insights specifically about the suitability of Rough Set Theory and Neutrosophic Logic for handling discrete data in machine learning healthcare models.
Please feel free to contribute to this discussion if you have expertise in this area. Thank you
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Hello Everyone,
I was reading an article about HSI (hyperspectral imaging)and came across figures representing surface scores for each PC. What do these figures represent?
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These figures show PCA scores projected onto their corresponding pixels.
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AI in research offers tremendous potential, but ethical considerations are crucial. Biases in data or algorithms can lead to discriminatory or unfair results. The "black box" nature of some AI models makes it difficult to understand their reasoning, raising concerns about accountability. Ensuring data privacy, transparency in research methods, and maintaining human oversight are all essential for ethical AI-powered research.
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Using AI technologies for data analysis and study interpretation highlights a number of ethical concerns. There is the issue of biases in the data,records since AI algorithms can give biases in the data on which they are taught, resulting in unjust conclusions.
Transparency is essential for data analysis, understanding how AI makes its decisions enables accountability.
Privacy risks occur as a result of the massive volumes of data that AI demands, demanding strict data protection procedures.
The social implications of Artificial intelligence adoption impose some concerns, like as its effects on employment and inequality, which must be examined.
Responsible AI usage for predicting unanticipated outcomes and prioritizing ethical principles to guarantee research helps society without harming individuals or aggravating current imbalances.
Balancing in innovation with ethical integrity is critical to the ethical use of AI technologies in research and data analysis.
There are other pros and cons also but while using AI in research we should look for ethical concerns always. It's always better to work, and produce less, rather than work false or to follow the malpractices, and falsification of data in the research.
Thanks.
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We have applied natural logarithms to both sides, resulting in log-log models such as:
ln(Y) = β0 + β1*ln(X1) + β2*ln(X2) + ... + ε
Thus far, I have interpreted the coefficient β1 as indicating that a 1 percent in X1 corresponds to a β1 percent change (either increase or decrease) in Y.
Q1: Are there alternative methods for interpreting these changes in terms of units rather than percentages?
Q2: I'm curious about the feasibility of backtransforming using "Duan's Smearing Estimate" when X is not transformed?
Looking forward to your suggestions and comments on this matter.
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What is the rationale for wanting unit-level increases/decreases for interpretation? If you are married to the log-log model, I would assume that is because you have multiple extreme right-skewed variables, which necessitates an interpretation that there are multiplicative changes over additive changes given the compression of the distribution. To me, it doesn't necessarily make sense to then back-transform this sort of distribution into a unit-level interpretation since the increases/decreases are not going to be as meaningful or intuitive.
I'm sure it is possible to achieve this to some degree with smearing or alternative transformations, but there is still a loss of information in the process that, to me, isn't necessary. Exponentiating your outcome will inevitably lead to some bias. You may be interested in this Stata thread on the topic:
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I am quite confused about what formula to use to compute my sample size. I will be conducting a Sequential Explanatory design wherein my QUANT phase will make use of mediation analysis and my qual phase will be interpretative phenomenology. How can I determine the sample size? What is the best formula to use?
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Bruce Weaver A useful app but it appears that its focus (currently) is exclusively on power. I believe that a simulation that is run "from scratch" provides greater flexibility and yields a lot more information than just on power. For example, you can simulate the effects of non-normal and missing data and evaluate the performance of fit statistics, as well as parameter and standard error bias in addition to estimating power. Power estimations can be misleading when your SEM parameters or standard errors are biased due to, for example, an insufficient sample size.
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how should one interpret these conflicting signals? Waiting for acceptance or rejection of a paper can be stressful, especially with such ambiguous indicators.
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It is an absolute DISGRACE for the world scientific community to let publishers (often full of incompetent individuals - editors, reviewers) enjoy the right to to FORCE us to submit a paper to ONLY ONE publisher at a time. It must be exactly the opposite: a scientist must have the right to submit a paper to as many publishers as s/he wishes! And the publishers MUST FIGHT for a paper/book to publish it - when it is a good one. This is so simple and so obvious and so straightforward that I am shocked why this DISGRACE continues. Suppose I make bread, or wine, or computers, or whatever. What? Shall I be obliged to propose them to one buyer only at a time? Hey, scientific community, start THINKING at last, will you?
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I want to know how i can use SEM and TEM micrographs to discuss mesoporous and microporous nature of materials
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Chinedu Onyeke, you can interpret TEM and SEM images of carbon materials by examining pores and their sizes. In SEM, analyze surface features such as particle size and shape, while TEM allows for direct observation of internal structures. Consider the following pore size ranges: Micropores (< 2 nm) and Mesopores (2 - 50 nm).
I hope you find these helpful.Warm regards
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How to evaluate the compounds with usage of peaks and their respective values in LCMS - TOF instrumentation? Is there any web portals for the data interpretation? I Have got Both LC (2 Files) MS (10-11 Files) cycles. How can I interpret those all data?
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XCMS online remains the standard tool.
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Hello, I am currently conducting my undergraduate dissertation on exploring how Primary school teachers interpret 'disruptive' behaviour.
My main objectives are:
1) What do teachers define as disruptive behaviour?
2) What do they attribute disruptive behaviour to?
I have already conducted my research in a school setting, using Interpretive Phenomenology as my methodology and semi-structured interviews as my method. I interviewed 11 teachers and my questioned aligned with the chosen methodology - focusing on their experiences.
I have transcribed all of my data and am now ready to proceed with analysing it.
However, I'm a bit stuck! As a complete beginner I am only confidently familiar with thematic analysis. I've had a look at using IPA seems as it would completely align with my methodology, but there are a lot more steps to it. I am of course willing to complete said steps, but I am also conscious that my whole dissertation is only 8000 words, so I have that to take into account.
Also, I do need to find similarities and differences across the data set as a whole.
So, if anyone can give me any guidance, it would be appreciated!
Finally, am I 'allowed' to use a different method of analysis- such as thematic analysis when I have conducted IP as my methodology?
If so, and I do go with thematic analysis, would that mean that it was then not worthwhile me doing IP as my methodology?
So many questions! Please note, I am only an undergraduate student (level 6) so I am still very much learning. Thank you!
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Thank you for your reply and advice, David!
I've had a look at Inductive Thematic Analysis. I'm thinking this may work well, under an IP framework 🤔
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How would you interpret the following sentence -
" Global median rate of community residential facilities is 0.008 per 100000 population, there is presently a median of zero facililities per 100000 in low and middle income countries , as compared to 10 facilities per 100000 population in high-income countries."
Here, what will be the interpretation of global median rate and median of zero facilities?
Kindly anyone please explain.
Thank you
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The previous answer is describing a mean or average-not a median.
The median and mean of a distribution are not the same. While for symmetrIc distributions they will be close in value, for asymmetic distributions they will be different.
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In this figure, a pca plot is shown for different protein , protein complex systems depicting the essential subspace for these systems. I want to know how can I interpret these plots ? What information I can gain from it ?
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The origin corresponds to the point where the X and Y coordinate axes are zero. The average structure is just that: The structure that results from averaging the XYZ Cartesian positions of your protein. The variance that explains the PCA analysis is based on how close or far the Cartesian positions of the protein are from the average structure.
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I have conducted phytochemical screening followed by FTIR for an aqueous plant extract and I want to know how to interpret the FTIR results to determine which phytochemicals are present based on the functional groups that have been determined/predicted by FTIR. Is there any other way to interpret the results?
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As you will be aware, plants are a very rich source of phytochemicals and this will be reflected in your aqueous extract. The IR spectra of your extract will be complex, containing the overlapping spectra of every compound. You will not be able to identify any individual compound with any degree of certainty.
If you want to identify the components of your extract then you need to resort to a Metabolomics type experiment. You need to add in several chromatographic steps and then resort to GC-MS (headspace for volatiles), after appropriate derivatisation, and to LC-MS. The spectra can be searched against various libraries. Even then you will be left with many unknowns.
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… it’s time to talk about what most men could initiate more of, and that is non-sexual intimacy. … It involves any kind of intimacy that isn’t centered around sex. It can include making time to talk, cuddling, engaging in fun activities together, and so on. (Stephan Labossiere)
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The online Cambridge Dictionary gives the following definitions of intimacy: (i) a situation in which you have a close friendship or sexual relationship with someone: Intimacy between teachers and students is not recommended.
(ii) things that are said or done only by people who have a close relationship with each other: It was obvious from their witty intimacies that they had been good friends for many years.
(iii) the state of having a close, personal relationship or romantic relationship with someone: He was always polite, but he shunned intimacy.
At least two definitions include sexual and romantic relationships. I don't think men insist on interpreting intimacy as involving sex, but it is the socio-culturally acquired acceptation of intimacy deeply-rooted in the mind of Anglo-Americans that includes sex as part of its meaning. If you like, the problem is linguistic or more precisely semantic tightly linked to the meaning attributed to intimacy. In cognitive linguistic terms, the root problem relates to social cognition.
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Hello, ALL
In my research, the repeated measured ANCOVA analysis has a 2 (Time: T2 vs. T3)x 2 (control vs. treatment) design, with the baseline T1 as a covariance. The results show Time has a main effect of p = 0.044, but when I run post hoc test, the difference between T2 and T3 is not significant(p = 0.77). How can I interpret this main effect? Is it because of the covariance?
Thanks in advance for the help!
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Hello Wenxia Zhou. Did you by any chance GLM > Repeated Measures in SPSS to estimate your model? If so, I suggest that you mean-center the covariate (the T1 score) and then estimate your model again using the mean-centered covariate. See this letter to the editor for more info:
HTH.
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So, i m working during last month with GC-MS. When i'm making the extraction of samples e.g. PAH samples, i'm pipetting significant concentration of two internal controls into the solution. When i will reach the interpretation step, i have to use their areas and its concentration into the calculations to obtain my final result for each sample?
Thank you in advance,
Kiriakos
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If you are adding controls prior to the extraction step these are known as surrogate standards. They help you assess the efficiency of your extraction procedure. You would need to set up a calibration for each of them just like you calibrate for your analytes (PAH, in this case). If you are adding the controls after all of your sample preparation steps but before your injection into the GC-MS then these are internal standards. You use them to correct for variability in the GC-MS responses.
Typically you calibrate your compounds corrected for the response of the internal standard (IS), and all samples, standards, etc get the same concentration of internal standard, so (Area compound/Area IS) plotted against (concentration compound/concentration IS) will become your calibration. The slope of this plot is typically referred to as the relative response factor (RRF); if you assume a linear response (I never do) you can simplify the equation to get to the standard RRF equation of Analyte conc = (analyte response * IS conc.) / (IS response *RRF).
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I need to find if the relationship between two variables is linear or not. I'm using IBM SPSS. I found that some people apply Test for Linearity (Analyze->Compare Means->Options->Test for linearity) while others apply Regression Test (Analyze->Regression->Linear). What is the difference between these two tests and how to interpret the results? I applied the Test of Linearity but I don't know how to interpret the results. Please guide me。 (Screenshot attached)
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I don't really want to write a discussion of the new results, because it would feel as if I was doing your homework. But here is an outline based on what I posted for the previous analysis. You can carry out the needed calculations (of percentages) and fill in the relevant statistics.
  • The the overall effect of Depression (the ordered set of 4 groups) is or is not statistically significant (report the relevant statistics).
  • The test for a linear trend accounts for X% of the variability between depression groups. It is or is not statistically significant (report the relevant statistics).
  • The test for all nonlinear trends combined accounts for X% of the variability between depression groups. It is or is not statistically significant (report the relevant statistics).
You also asked:
Also how can I compare the interpretation for Depression*Exam and Depression*Exam2 ?
I'm not entirely sure what you mean. Are you thinking of a quantitative comparison, or a qualitative comparison? Maybe someone else will understand what you mean.
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I hear and read much about physical causality, causal necessity, and modal necessity. Many take them for different or slightly different. I opine that causality and necessity, at the core, are mutually connected and to a great extent possess a physical-ontological core.
I hold that purely physical, modal, and dispositionalist interpretations of these terms are nothing but simplistic. We need a theory that correlates causality with necessity.
Raphael Neelamkavil
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Hello!
My name is Mahnoor and I am a 4th year bachelor's student in psychology, my research project aims to discuss about the factors that influence the employees intention to stay, but I'm not able to find a questionnaire with the proper guidelines of how to score/interpret it's results.
If anyone can help me find a questionnaire or a scale to measure this variable of mine, it would be a huge help!
Looking forward to a response.
Best Regards,
Mahnoor
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Money!
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Hello everyone,
I am relatively new to the field of fluorescence microscopy and subcellular localization analysis. Recently, I conducted experiments on HEK293 cells wherein I labeled both the nucleus and the protein of interest. Now, I am in the process of interpreting the fluorescence patterns to predict subcellular localization. I have come across literature suggesting that quantitative analysis in this regard is often carried out by specialists. I am curious if there are any established criteria or guidelines for interpreting these patterns to identify specific organelles.
I would greatly appreciate any advice or insights you can provide on this matter. Thank you very much in advance.
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It would be useful if you provided a picture and explained how you labelled the nucleus and protein of interest and what sort of microscope you used to take the image etc. Qualitative analysis of protein localisation is fairly easy but quantitative analysis depends so much on how your sample is prepared for imaging and how you take your images. A lot depends on the question you want to answer as well. For example you can get numbers from software such as ImageJ (FIJI) (which is free) but you need to know what to measure.
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In the light of the overlap between Literary Theory and Translation, having for their object an interpretation for each literary work, I would like to discuss the following points with you.
Does the interplay between Literary Theory and Translation Pedagogy matter?
How can we strike the balance between the text objectivity and the translator's subjectivity?
How should Literary Theory subtly influence Literary Translation Methodology and its professionalism?
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According to my knowledge it depends on the type of literary work what you translate.for eg a poem doesn't require word to word translation coz it will lose its charm where as scientific essays, political survey, formal correspondence require word to word translation orelse the matter will not be conveyed exactly.
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My concern is to collect information for my academic research in photojournalism and visual journalism.
What are the Theories, Models and Methods to analyze, interpret, decode, evaluate and explain visual language in academic research concerning Photojournalism and Visual Journalism?
is there any helping material available?
Thanks in Advance
Rizwan Ali
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hi dear sorry for delay my answer you can depend semiotic theory and there is a lot of method you can collect concepts and make personal model if you can give me time to find suitable theory
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I ask a physical interpretation of the relationship between states of a quantum system introduced, in analogy with the causal relationship between events in Minkowski space-time by means of the formula xRy if and only if < x-y/ T( x-y)> > or = 0. Here x, y are vectors of a Hilbert space and T is a Hermitian operator applied in it. In the original relation x,y are Minkowski space-time four- vectors and T is the metric tensor diag ( 1,-1,-1--1). The relation is equivalent to the inequality <T>(x) + <T>(y) > or= 2 Re (<x/ T(y)>) where the first member is the sum of the mean values of the operator T in the states x and y respectively. ( Gennaro Franco, Giuseppe Marino, Possible causal relationship extensions and properties of related causal isomorphisms, Linear and nonlinear analysis, january 2020)
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The relationship described here is not a relationship between the states of a quantum system. In fact, if it were, the implication should hold: given the vectors x, y in a Hilbert space on the complex field, if <x-y/ A ( x-y)> >or= 0 then for every pair a,b of complex numbers it should result < ax-by/ A (ax-by)> >or=0. This is because the states of a quantum system are defined up to arbitrary complex constants. In fact, the following counterexample applies: x= (1,0); y= (0,1); a=1, b=5; A = diag (2,-1). The relation introduced above is therefore only a reflective and symmetric (non-transitive) binary relation between the vectors of a Hilbert space (real or complex).
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Hello,
I am currently a student majoring in Mechanical Engineering and i am using Spectrometer to measure transmittance.
While utilizing the scope mode in the software, I have been able to obtain information on wavelength and counts.
However, I am seeking clarification on what exactly counts represent and how to interpret them in terms of light intensity or transmittance.
1. What is the counts?
2. How to calculate counts to intensity?
3. How to convert counts to intensity?
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for calculating the transmittance of a sample you fortunately do not have to know the absolute values of the intensity I impinging onto the detector or the entrance slit of your monochromator.
The count-scale (CS) presented at your spectrum is proportional to the intensity (I) at a particular wavelength for the light measured by the spectrometer:
CS ~ I.
For gathering the transmittance your have to acquire two spectra,
a) the primary spectrum CS0 without any sample and
b) the transmitted spectrum CStr with the sample being passed by the light, and afterwards you have to
c) divide them:
transmittance(lambda) = CStr(lambda)/CS0(lambda) = Itr(lambda)/ I0(lambda):
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Dear Colleagues,
Because this is not exactly a technical question I decided to open this issue as a discussion to comply with the Research Gate rules. The purpose of this discussion is quite personal - I would like to get in touch with the researchers who work with the Biolog EcoPlate technique. I have several years of experience with the technique but still encounter difficulties analysing and interpreting the data so I need to exchange my current knowledge and to expand it further.
Sometimes not all the collected data are suitable for publication but they are important for the perception about the preciseness of the method, its advantages and disadvantages, and such information can be exchanged rather in personal communication than in the formal one. If you are interested in the topic you can send me also a personal message at [email protected]
Kind regards,
Katya Dimitrova
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The Biolog Eco Plate technique is a powerful tool used for assessing the metabolic diversity and activity of microbial communities in various environmental samples. Data collection involves inoculating the Eco Plates with a sample, incubating them, and then measuring the color changes in each well to determine substrate utilization patterns. Analysis of the data typically involves calculating indices such as Shannon diversity or Simpson's evenness to quantify the overall metabolic diversity present in a sample. Additionally, principal component analysis (PCA) can be used to visualize similarities and differences between samples based on their substrate utilization profiles. Interpreting the results requires an understanding of microbial ecology principles, as changes in substrate utilization patterns may indicate shifts in community composition or ecosystem function. Overall, the Biolog Eco Plate technique provides valuable insights into the functional potential of microbial communities and allows for comprehensive ecological assessments.
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Null Hypothesis: The recovery percentage of A channel is less than the recovery percentage of B channel
Alternate hypothesis: The recovery percentage of A channel is not less than the recovery percentage of B channel
if p-value is <alpha (0.05 in this case), Can I say that the null hypothesis is rejected and the alternate hypothesis is accepted?
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I don't think the way you have framed the hypotheses is correct. Your null hypothesis is literally in it's name: it is a hypothesis of null effects. So it should be:
H0: There is no difference between A and B with respect to recovery percentages.
H1: There is a difference.
Also Andreas is unfortunately incorrect and this is a common misconception about p values. Even Fisher, the guy who developed the original workings of null hypothesis testing, noted that we can neither accept the null or alternative hypothesis, but we can tentatively reject the null. These are not equivalent statements so it is important to be careful about the wording. For a Bayesian view this would be a bit different, but since you highlight p values this would be important to understand.
As always, the usual caveats go with a low p-value. It would be very important to include things like effect sizes, confidence intervals, etc. to quantify what the actual effect is since p-values say nothing about the actual magnitude of the effect, only that the probability of a null effect being very low.
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I conducted X-ray diffraction (XRD) investigation on my chitosan sample and need assistance interpreting its diffractogram. If possible, could someone share the chitosan JCPDS card number with me? I failed to find a reference curve on Xpert HighScore to align with my experimental curve.
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after a short search I found that card (JCPDS # 039-1894) available at one of the answers provided by Marchella Bini in:
I_performed_xrd_analysis_of_my_chitosan_sample_can_someone_help_me_interpret_its_diffractogram/1
The file is attached there; so I will not attach it here again...
Good luck and
best regards
G.M.
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How could I set up my cutoff for positive cells for PDL-1 and CCR7 on small subset of dendritic cells .I use unstained negative control for every sample & I use healthy controls .But, I am very confused how to interpretate those results .I need help
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You're very welcome - good luck!
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I am currently doing my dissertation with the following variables
IDV : Prejudice
DV : Team Cohesiveness
W : Ethical Climate
So I got the result as a significant moderation but the conditional effects and the graph is confusing to interpret.
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Can you elaborate WHAT exaclty is confusing? It seems pretty straight forward that with increasing values for W, the effect of X becomes more negative. (And I would recommend using 16, 50, and 84 percentiles instead of SD, it makes it more wasy, prevents predictions for values which are not in the scale anymore (which might happen, if the predictor is skewed) and in case of normality of the predictor [which is not a necessary condition in any way!!] both approaches will lead to the same conclusion)
Maybe as a help to undestand what is going on, you should rearrange the regression formula. Without intercept it is basically:
b1*X + b2*W + b3*X*W
To see how the interaction affects the X variable:
(b1 + b3*W)*X + b2*W.
Now you see that the effect of X is conditional on the b3 weight AND the value of W. If you now take the values of your variables and the equation, you will get exactly the results
(-.262 + (-.028*-6.361)*X =
(-.262 + (0.178))*X = -0.083*X (rounding error)
(-.262 + (-.028*0)*X =
(-.262 + 0)*X = -.262*X
(-.262 + (-.028*6.361)*X
(-.262 + (-0.178))*X = -0.44*X
Hope this helps
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I have performed a Rasch analysis on a questionnaire using TAM package of r. I have some data; however, I need to know how to interpret my findings. If any body could help me and introduce me a helpful reference for interpreting TAM findings.
regards
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Amin Kordi yoosefinejad, at their core, models are grounded in the estimation of model parameters and the accompanying fit statistics which can help to determine the appropriateness of the estimates for the model parameters. In the case of simple Rasch analysis, these elements are being estimated: person ability and item difficulty. The beauty of the Rasch approach is that both forms of these estimates are on the same scale.
The output of the TAM package should allow you to review all of the person ability statistics as well as their accompanying model fit statistics. In addition, there should be an output that displays the item difficulty statistics as well as their accompanying model fit statistics. After you review those two sets of results, you should be able to make decisions about your instrument.
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To a non-mathematicia.
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Hope you won't let ChatGPT do optimization. That System can't even solve simple geometry Tasks correctly 😡
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Increasing AI interpretability is crucial for understanding how decisions are made, especially in high-stakes domains like healthcare and finance.
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To enhance the interpretability and explainability of AI systems, thereby fostering trust and accountability, several strategies and approaches can be adopted. These strategies not only aim to make the decision-making processes of AI systems more transparent but also ensure they are understandable to a broad audience, including those without technical expertise. Here are key methods to achieve this goal:
1. Model Simplification
  • Use Interpretable Models: Where possible, use machine learning models that are inherently more interpretable, such as linear regression, decision trees, or logistic regression. These models provide clear insights into how input variables are related to the output.
  • Feature Importance: For more complex models, use techniques that explain the importance of each feature in the prediction. This helps in understanding which features are most influential in the model's decisions.
2. Explainability Techniques
  • Local Interpretable Model-agnostic Explanations (LIME): LIME can explain the prediction of any classifier in an interpretable and faithful manner, by approximating it locally with an interpretable model.
  • SHapley Additive exPlanations (SHAP): SHAP values provide a way to understand the impact of having a certain value for a given feature in comparison to the prediction we'd make if that feature took some baseline value.
3. Visualization Tools
  • Decision Trees Visualization: Visualizing decision trees can provide insights into the decision-making process, showing how decisions are made at each step.
  • Attention Mechanisms (in Neural Networks): Visualization of attention weights can help understand which parts of the input data the model is focusing on when making decisions.
4. Prototyping and Simulation
  • What-if Analysis: Tools that allow users to change inputs and observe outputs can help in understanding how changes in input data affect the model’s predictions.
  • Counterfactual Explanations: Providing examples of the nearest data point that would change the decision of the model can help users understand what needs to change to obtain a different outcome.
5. Regulatory and Ethical Frameworks
  • Adherence to Standards and Guidelines: Developing and following industry standards, ethical guidelines, and regulatory requirements for AI explainability can ensure a consistent approach to building trust.
6. Collaboration and Stakeholder Involvement
  • Involving Stakeholders: Engaging with stakeholders, including those who will be affected by AI decisions, in the development and review of AI systems can ensure the explanations meet their needs.
7. Documentation and Transparency
  • Model Documentation: Providing comprehensive documentation about how an AI system was developed, trained, and deployed, including the datasets used, can enhance transparency.
8. Continuous Monitoring and Feedback
  • Audit Trails: Keeping detailed records of AI system decisions and the basis for those decisions can help in auditing and reviewing the system’s behavior over time.
  • Feedback Loops: Implement mechanisms to receive and incorporate feedback on AI system outputs and explanations from users to continuously improve interpretability.
Implementing these strategies requires a multidisciplinary approach, combining expertise in AI and machine learning, domain knowledge, ethics, and design. By making AI systems more interpretable and explainable, we can ensure they are used responsibly, ethically, and effectively, thereby increasing trust among users and stakeholders.
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The question delves into the impact of implementing explainable AI (XAI) techniques in critical domains where machine learning models operate. It seeks to understand how the use of XAI contributes to building trust in these models. In critical domains such as healthcare or finance, where model decisions carry significant consequences, transparency and interpretability become paramount. The question also acknowledges potential challenges in adopting XAI, including navigating the balance between model accuracy and interpretability, the complexity of certain machine learning models, and the need for standardized evaluation methods. Overall, it prompts a discussion on the role of XAI in fostering trust and the hurdles that may arise during its integration into critical applications.
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Incorporating Explainable AI (XAI) into critical domain machine learning models, such as healthcare, finance, and autonomous vehicles, significantly enhances trust and transparency, which are crucial for acceptance and ethical deployment. XAI aims to make the decisions of AI systems transparent and understandable to humans, addressing the "black box" nature of many advanced AI models, where the decision-making process is often opaque.
Enhancing Trust with XAI
  1. Transparency: XAI provides insights into the decision-making process of AI models. By understanding how and why a model makes certain decisions, stakeholders can trust the system's outputs. For example, in healthcare, if a model recommends a particular treatment, doctors and patients can understand the reasoning behind this decision.
  2. Accountability: Explainability allows for accountability in AI-driven decisions. In critical domains, where decisions can have significant consequences, being able to trace the logic behind an AI's conclusion is crucial for ethical considerations and legal compliance.
  3. Improved Decision-Making: XAI can help identify biases or errors in the model's reasoning, leading to more accurate and fair decisions. Stakeholders can intervene and correct these issues, ensuring the AI system works as intended.
  4. User Confidence: When users understand how AI systems work and make decisions, their confidence in using these technologies increases. This is particularly important in sectors like finance, where AI models might be used for risk assessment, fraud detection, and investment decisions.
Challenges in Adoption
  1. Complexity vs. Explainability Trade-off: There is often a trade-off between the complexity of a model and its explainability. Highly accurate models, such as deep learning networks, can be very complex, making them harder to interpret. Balancing accuracy with explainability is a significant challenge.
  2. Standardization of Explanations: There is no one-size-fits-all approach to explainability. Different stakeholders may require different types of explanations, and standardizing these across various domains and applications is challenging.
  3. Technical Limitations: Developing techniques that provide meaningful explanations without compromising the model's performance is technically challenging. Current methods of explainability may not fully uncover the nuanced decision-making process of complex models.
  4. Ethical and Privacy Concerns: Providing explanations for AI decisions can sometimes reveal sensitive information about the data or the decision-making process, leading to privacy concerns. Ensuring that explanations do not compromise data privacy or security is a challenge.
Incorporating XAI into critical domain machine learning models is essential for building trust, ensuring accountability, and facilitating wider adoption of AI technologies. However, overcoming the challenges of explainability requires ongoing research, interdisciplinary collaboration, and the development of standards and best practices that prioritize ethical considerations and stakeholder needs.
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I performed this analysis on R to estimate the labor use efficiency of smallholder agroforestry farmers, by running the two-stage analysis simultaneously. I am finding it difficult to make the difference in the OLs and MLE estimates to interpret the results appropriately. Also, I find it difficult to interpret the hypothesis testing for inefficiency and Model correctness.
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To interpret labor efficiency results from Strategic Factory Analysis (SFA), you can apply key factors in measuring supply chain performance. In the documents provided, we can consider the following aspects:
Product design: Labor efficiency can be measured by considering factors such as product quality, availability, and production cost calculations.
Production scheduling: Labor efficiency analysis can include measuring compliance with production schedules, production speed, and flexibility in meeting product demand.
Factory management: Labor efficiency can be evaluated through factors such as manpower utilization rate, time utilization rate, and efficiency in the use of production facilities.
Distribution planning: Labor efficiency in distribution can be measured through factors such as delivery speed, order accuracy, and flexibility in meeting customer needs. .
During an SFA analysis, you can compare results with industry standards or your own business goals to evaluate labor efficiency. You can then identify recommendations to improve efficiency, such as optimizing production processes, training people, or increasing flexibility in the supply chain.
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How to interpret negative total and direct effects and positive indirect effect? all are significant in mediation analysis
X --- M --- Y
Total Effect: Negative (-0.42)
Indirect Effect 1: Positive (0.03)
Indirect Effect 2: negative (-0.22)
Indirect Effect 3: positive (0.06) - Not significant
Direct Effect: Negative (-0.29)
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Bruce Weaver I'm sorry, I forgot to include the other indirect effects (which were negative, significant). Yes, the sum of these effects + direct effect is the total effect.
Total Effect: Negative (-0.42)
Indirect Effect 1: Positive (0.03)
Indirect Effect 2: negative (-0.22)
Indirect Effect 3: positive (0.06) - Not significant
Direct Effect: Negative (-0.29)
Now, can you tell me how I could interpret this positive indirect effect in the face of the total and direct positive effects?
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How can I interpret these two examples below in the mediation analysis? Help me
1) with negative indirect and total effect, positive direct effect
Healthy pattern (X)
Sodium Consumption (M)
Gastric Cancer (Y)
Total Effect: Negative (-0.29)
Indirect Effect: Negative (-0.44)
Direct Effect: Positive (0.14)
Mediation percentage: 100%
2) With total and direct negative effect, positive indirect effect
Healthy pattern (x)
Sugar consumption (m)
Gastric Cancer (Y)
Total Effect: Negative (-0.42)
Indirect Effect: Positive (0.03)
Direct Effect: Negative (-0.29)
Mediation percentage: 10.3%
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The interpretations depends on all aspects either positive nor negative.simply advantages and disadvantages .
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Is Uniqueness Their Common and Only Correct Answer?
I. We often say that xx has no physical meaning or has physical meaning. So what is "physical meaning" and what is the meaning of "physical meaning "*?
"As far as the causality principle is concerned, if the physical quantities and their time derivatives are known in the present in any given coordinate system, then a statement will only have physical meaning if it is invariant with respect to those transformations for which the coordinates used are precisely those for which the known present values remain invariant. I claim that all assertions of this kind are uniquely determined for the future as well, i.e., that the causality principle is valid in the following formulation: From knowledge of the fourteen potentials ......, in the present all statements about them in the future follow necessarily and uniquely insofar as they have physical meaning" [1].“Hilbert's answer is based on a more precise formulation of the concept of causality that hinges on the distinction between meaningful and meaningless statements.”[2]
Hawking said [4], "I take the positivist view that a physical theory is nothing more than a mathematical model, and it is pointless to ask whether it corresponds to the real. All one can seek is that its predictions agree with its observations."
Is there no difference between physics and Mathematics? We believe that the difference between physics and mathematics lies in the fact that physics must have a physical meaning, whereas mathematics does not have to. Mathematics can be said to have a physical meaning only if it finds a corresponding expression in physics.
II. We often say, restore naturalness, preserve naturalness, the degree of unnaturalness, Higgs naturalness problem, structural naturalness, etc., so what is naturalness or unnaturalness?
“There are two fundamental concepts that enter the formulation of the naturalness criterion: symmetry and effective theories. Both concepts have played a pivotal role in the reductionist approach that has successfully led to the understanding of fundamental forces through the Standard Model. ” [6]
Judging naturalness by symmetry is a good piece of criteria; symmetry is the only result of choosing stability, and there seems to be nothing lacking. But using effective theories as another criterion must be incomplete, because truncate obscures some of the most important details.
III. We often say that "The greatest truths are the simplest"(大道至简†), so is there a standard for judging the simplest?
"Einstein was firmly convinced that all forces must have an ultimate unified description and he even speculated on the uniqueness of this fundamental theory, whose parameters are fixed in the only possible consistent way, with no deformations allowed: 'What really interests me is whether God had any choice in the creation of the world; that is, whether the necessity of logical simplicity leaves any freedom at all' ”[6]
When God created the world, there would not have been another option. The absolute matching of the physical world with the mathematical world has shown that as long as mathematics is unique, physics must be equally unique. The physical world can only be an automatic emulator of the mathematical world, similar to a Cellular Automata.
It is clear that consensus is still a distant goal, and there will be no agreement on any of the following issues at this time:
1) Should there be a precise and uniform definition of having physical meaning? Does the absence of physical meaning mean that there is no corresponding physical reality?
2) Are all concepts in modern physics physically meaningful? For example, probabilistic interpretation of wave functions, superposition states, negative energy seas, spacetime singularities, finite and unbounded, and so on.
3) "Is naturalness a good guiding principle?"[3] "Does nature respect the naturalness criterion?"[6]
4) In physics, is simplicity in essence uniqueness? Is uniqueness a necessary sign of correctness‡?
---------------------------------------------------------
Notes:
* xx wrote a book, "The Meaning of Meaning", which Wittgenstein rated poorly, but Russell thought otherwise and gave it a positive review instead. Wittgenstein thought Russell was trying to help sell the author and Russell was no longer serious [5]. If one can write about the Meaning of Meaning, then one can follow with the Meaning of Meaning of Meaning. In that case, how does one end up with meaning? It is the same as causality; there must exist an ultimate meaning which cannot be pursued any further.
‡ For example, the Shortest Path Principle, Einstein's field equation Gµν=k*Tµν, all embody the idea that uniqueness is correctness (excluding the ultimate interpretation of space-time).
† “万物之始,大道至简,衍化至繁。”At the beginning of all things, the Tao is simple; later on, it evolves into prosperous and complexity. Similar to Leonardo Da Vinci,"Simplicity is the ultimate sophistication." However, the provenance of many of the quotes is dubious.
------------------------------
References:
[1] Rowe, D. E. (2019). Emmy Noether on energy conservation in general relativity. arXiv preprint arXiv:1912.03269.
[2] Sauer, T., & Majer, U. (2009). David Hilbert's Lectures on the Foundations of Physics 1915-1927: Relativity, Quantum Theory and Epistemology. Springer.
[3] Giudice, G. F. (2013). Naturalness after LHC8. arXiv preprint arXiv:1307.7879.
[4] Hawking, S., & Penrose, R. (2018). The nature of space and time (吴忠超,杜欣欣, Trans.; Chinese ed., Vol. 3). Princeton University Press.
[5] Monk, R. (1990). Ludwig Wittgenstein: the duty of genius. London: J. Cape. Morgan, G. (Chinese @2011)
[6] Giudice, G. F. (2008). Naturally speaking: the naturalness criterion and physics at the LHC. Perspectives on LHC physics, 155-178.
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Alaya Kouki With respect to „From Nothing you get the theory of Everything.„ well not from nothing (exactly in the human sense of this word) …
… but from simple first order multiplicative base entities like shown within the framework of iSpace theory able to derive value and geometry of constants of nature, that is (e.g only) GoldenRatio iSpaceAmpere being the quantum of Ampere, 1/6961 iSpaceSecond being the quantum of time, and so on) all multiplied up by any arbitrary positive integer to the values we see once lossless (keeping initial integer geometric exactness!) converted back to iSpace-SI based MKS/A-SI lab compatible measurement values (to compare to experimental results of all kind, given no other theoretical corrections have been applied like QCD/QED when involved in such calculation).
But otherwise - indeed - from nothing (but a little bit pre-school multiplicative math).
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Hello,
I wondered how the XRD peaks tell you the crystal's preferred orientation of the crystal. For example, if a crystal has only three peaks at (200), (400), and (600), how is it interpreted that the preferential growth direction is (100)? Also, does (100) mean that layer is stacking in an a-axis direction for a 2D material?
Thanks in advance!
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The most common X-ray diffractometer uses a flat stationary sample holder, which is referred to as Bragg-Brentano geometry.
For such a stationary diffractometer, the intensity of a Bragg reflection is proportional to the relative number of crystallites in the sample that happen to be in an orientation with the hkl plane parallel to the sample surface. In this geometry, only those crystals will diffract the incoming xrays that happen to be oriented with the respective (hkl) plane parallel to the surface.
If all crystals are randomly oriented, this probability is independent of the indices hkl. If on the other hand more you have preferred orientation, a group of lattice planes will be more likely to be parallel to the surface compare to other reflections. The relative intensity of Bragg reflections of this group of lattice planes will be increased compared to that of other hkl groups.
In your case, if the diffraction pattern shows only 200, 400, 600 that means that the direct space direction [100] is very much preferentially normal to the sample surface. Other directions like [111], which is normal to the hhh lattice planes are much less likely to occur normal to the flat sample surface. Accordingly their intensity is diminished. As you state that you observe h00 reflections only, your sample has a very extreme preferred orientation.
It does not tell you anything about stacking of a 2D material. The preferred orientation tells you something about the orientation distribution of the crystallites, not their internal structure. If your 2D- material consists of layers which are parallel to the h00 planes of the bulk material, the material is most likely stacked with such layers parallel to each other.
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First of all, it is important to mention that individuals are responsible of caring about their descendants based on the values inculcated to them in family and community they belong to. So if the non-whites prefer to have several children detrimental to socio-economic comfort, the whites privilege socio-economic comfort. As a matter of proof, it is not common to see non-white with the deliberate choice of not having a child but among the white. So it is normal that the white decline.
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Dear researchers,
I obtained a toxicity model report of goniothalamin.
How to interpret data from Protox II?
1) What is meaning the red and green coloured region ?
2) What is mean active and inactive in colured region ?
3) Can give me an example how to interpret this toxicity model report?
Thank you very much!
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Hello. Green and red is simply a spectrum between Inactive (green) and active (red). The degree of saturation (how dark or light the colors are) in the prediction box indicates the level of confidence in the prediction, which is supported by the probability score on the right. The figure you've displayed shows that in terms of hepatotoxicity, Protox II predicts that goniothalamin is inactive but it is worth noting that the confidence level is not so high, being only at 0.56. This means that despite the predicted value, there still may be a relatively high chance that goniothalamin will exert hepatotoxic activity, since the prediction is lacking certainty or is not completely guaranteed.
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I have a qualitative data of tamarind. please anyone give solution for calculation and interpretation of shannon weaver diversity in r program or other software
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Thank you mam
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OPTICAL ILLUSIONS
Psychologists know that we see as much with our brains as we do with our eyes. That’s why psychologists are interested in Rorschach Tests, and they’re also interested in Optical Illusions.
The brain is an editor. It tends to allow us to see only one thing at a time. Therefore, the brain often allows us to have only one interpretation of an ambiguous image at a time; however, if the brain shifts to the other meaning of the image, it at the same time tends to lose the first image.
Many optical illusions relate to perspective (near-far, big-little, large-small, etc.) Some of the optical illusions presented in this PowerPoint include the following (often named after the discoverer or inventor of the optical illusion in question): Ames Room, Bending Lines, Boring Figure, Box and Sphere, Color Blind Test, Cornsweet Effect, Ebbinghaus Illusion, Elephant Legs, Gradients Illusion, Hermann Grid, Hidden Messages, Hypnotizing Image, Kanizsa Triangle, Magritte’s Endless Stairs, Moiré’s Illusion, Morpheus Illusion, Muller-Lyer Illusion, Penrose Triangle, Scintillating Grid, Ponzo Illusion, Rabbit-Duck, Refraction Illusion, Ripple Effect, Rotating Circles, Rubin Vase, Sinking Building, Snakes, Spinning Dancer, Spinning Seeds. Spiraling Colors, Spiraling Downward, Squiggly Squares, Teach-Learn, Tunnel Effect, Wife-Mother-in-Law, Zollner Illusion, Zoolander-Beyoncé, Etc.
Don and Alleen Nilsen’s Humor PowerPoints:
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actually, the experiments were run that confirmed the following thesis:
when one sees 'duck-rabbit' as a duck, then one's gaze is differently located to the situation when one sees 'duck-rabbit' as a rabbit.
Hence, it is not true that we supply different visual interpretations of the same set of visual data; the very sets are different from the start.
I think that Wittgenstein should be blamed for the confusion.
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I cannot find a uniform and clear definition of Work-from-Anywhere in papers, and there is nowhere written that it excludes Working-from-Home, although it is often interpreted like this. Remote work is again often used as both Work from Home plus Work from Anywhere depending on the paper and the definition. Is there any official clear separation about this, especially regarding Work from Anywhere?
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Yes, work-from-home falls under the work-from-anywhere concept. When you work anywhere, it could be at home, a coffee shop, the library, etc. It means from anywhere.
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In search of latest statistical theory which is backing up the machine learning algorithms.
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Recent advancements in statistical learning theory focus on networks, distilling knowledge from complex models, and advancing causal inference methods.
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How would you address the issue of model interpretability in deep learning, especially when dealing with complex neural network architectures, to ensure transparency and trust in the decision-making process?
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You may want to review some useful information presented below:
Addressing the issue of model interpretability in deep learning is crucial for ensuring transparency, trust, and understanding of the decision-making process. Here are some approaches and techniques that can be employed to enhance interpretability:
  1. Simpler Models: Consider using simpler models, such as linear models or decision trees, which are inherently more interpretable. While deep neural networks may provide high accuracy, simpler models can be easier to understand.
  2. Layer-wise Inspection: Examine the activations and outputs of each layer in the neural network. This helps understand the features that the model is learning at different abstraction levels.
  3. Feature Importance Techniques: Use techniques like feature importance methods to identify the most influential features for a given prediction. Methods like SHAP (SHapley Additive exPlanations) and LIME (Local Interpretable Model-agnostic Explanations) can provide insights into feature contributions.
  4. Attention Mechanisms: If applicable, use attention mechanisms in models like Transformer networks. Attention mechanisms highlight which parts of the input sequence are more relevant for the model's decision, providing interpretability.
  5. Activation Maximization: Visualize what input patterns maximize the activation of particular neurons. This can give insights into what each neuron is looking for in the input data.
  6. Grad-CAM (Gradient-weighted Class Activation Mapping): This technique highlights the regions of an input image that are important for a particular class prediction. It's particularly useful for image classification tasks.
  7. Layer-wise Relevance Propagation (LRP): LRP is a technique for attributing the prediction of a deep network to its input features. It assigns relevance scores to each input feature, helping to understand which features contribute to the decision.
  8. Ensemble Models: Create an ensemble of simpler models and use them in conjunction. This can improve interpretability by combining the strengths of different models.
  9. Human-AI Collaboration: Encourage collaboration between domain experts and data scientists to ensure that the model's decisions align with domain knowledge. This can provide a more intuitive understanding of model behavior.
  10. Documentation and Communication: Clearly document the architecture, training process, and decision-making logic of the model. Communicate the model's strengths and limitations to stakeholders.
  11. Ethical Considerations: Consider the ethical implications of the model's predictions. Ensure that potential biases in the data and model outputs are addressed to maintain fairness and trust.
By employing these techniques and considering interpretability throughout the model development process, you can enhance transparency and trust in the decision-making process of complex neural network architectures.
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I'm researching about academic procrastination. I already got access with the APS but can't find the manual on interpretation of the scores. Is there a low and high score?
Replies would be deeply appreciated.
Thanks in advance,
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I am not getting its interpretation if anyone knows then kindly reply
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If I want to carry out innovative research based on Wasserstein Regression, what other perspectives can I carry out statistical innovation? Wasserstein Regressions can I carry out statistical innovation? Specifically,(1) Combining with Bayesian framework, the prior distribution is introduced and parameter estimation is performed based on Bayesian rule to obtain more reliable estimation results.(2)Variable selection technique is introduced to automatically select the predictive distribution that has explanatory power to the response distribution to obtain sparse interpretation.
Can the above questions be regarded as a highly innovative research direction?
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Hi,
Incorporating a Bayesian framework and variable selection into Wasserstein Regression could be a valuable contribution to the field. These methods could enhance the robustness and clarity of the models, offering a meaningful advancement in statistical analysis, particularly for complex data.
Just share my thoughts.
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I am currently researching microbial growth kinetics through impedance analysis. My experimental procedure involves measuring impedance every hour for a duration of 24 hours. I am seeking guidance on how to effectively interpret and create a Z vs. time plot based on the obtained data. For impedance measurements, I am utilizing PSTrace from Palmsens for Electrochemical Impedance Spectroscopy (EIS). Any insights or recommendations on the interpretation and visualization of the impedance data would be greatly appreciated.
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I am not sure if this is going to be helpful, but in my opinion, if you can determine the important parameters in each Nyquist of EIS tests like Rs, Rct, Cdl, mass transfer resistance and ,etc. then you can graph each parameter vs time. in addition, you can use bod and phase diagram that represent Z vs frequency which is a different representation of time.
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In the pursuit of creating highly efficient and capable AI systems, if we develop an algorithm that consistently produces results beyond our understanding or ability to interpret, should we continue to deploy and use it, even if its decision-making processes are essentially a "black box" to human comprehension?
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Different fields of application rely on algorithms in different ways. In healthcare contexts, it is challenging to depend solely on algorithmic processes without supplementary contextual understanding and skill. But the black box method is useful when the consequences are small, like when we utilize algorithms to play chess. On the other hand, if you're going for a black box approach, it's a good idea to remove irrelevant or redundant data and determine which variables/features in the data are used by the algorithm making the conclusion. You should constantly be aware of the inputs you give algorithms, as models tend to gather noise and redundant information from data and are vulnerable to data perturbation which will make more trouble to get reproducible results.
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I tried running a script using the gen basis set and specifying the aug-cc-pVTZ basis set for the sulphur atom. However, I keep getting errors in the script and cannot identify my mistake.
Add Input:
C H N 0
6-31G(d)
****
S 0
aug-cc-pVTZ
****
I believe the problem is due to me trying to specify for just the d polarization function and not for p. The code works with 6-31G(d,p), but I don't quite understand why.
P.S. It would be great if there were more examples or better resources to use Gaussian. I find the documentation challenging to interpret at an undergraduate level.
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A specific pattern and blank line termination must be per the code requirement. I am attaching two links, one which refers to the Gaussian official documentation of the Gen keyword, and the other one is the blog by Dr. Joaquin Barroso, where he explains the Gen and related keywords and provides examples that you may find helpful.
Since you are an undergrad, go through the blog thoroughly. You will find more topics of your interest.
Here is a link for the Gaussian YouTube channel: https://www.youtube.com/@GaussianInc
I hope this helps. Happy Computing.
Regards,
Dilawar
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How to interpret research metrics?
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I believe that when interpreting research metrics, it is critical to consider the context, such as the field of study, research objectives, and career stage. Because no single metric can fully capture the quality and impact of research, it is best to use a combination of indicators and qualitative assessments to create a comprehensive evaluation. Furthermore, metrics should not be the sole criterion for determining the value of research because they have limitations and biases that must be considered.
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* BEFORE the 6th Extinction Event *
Context is King deriving AnswerQuestion Reasons
Semantics are Queen implying QuestionAnswer Logic
Infantisms serve Children of All Ages beholding Logical Reasons
The Question of Mortality applies to Species as much as Classification Description.
The Answer to Accurate Definitions makes every Question subject to Interpretation.
Who shall report the "Final-Judgement": Science (Life Spirit) vs Religion (Death Guide)
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poverty creates dis.ease, which is the root effect of being disenfranchised (say can_sir, and then follow the $).
yes, in fact, poverty is eradicated one soul at at time, and it comes through the epiphany of life, realizing e_fil isn't a mis.spelling, is it the chance realization we are all in this together ~ @Sages #Bullets & Snack Crackers
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Is it correct to choose the principal components method in order to show the relationship of species with biotopes?
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Olena Yarys If you are looking for patterns and relationships among those variables (species and biotopes), additional approaches like Canonical Correspondence Analysis (CCA) or regression models may be appropriate. Then you could validate and perform the sensibility analysis of your results.
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My answer: Yes, in order to interpret history, disincentives are the most rigorous guide. How?: Due to the many assumptions of inductive logic, deductive logic is more rigorous. Throughout history, incentives are less rigorous because no entity(besides God) is completely rational and or self-interested, thus what incentivizes an act is less rigorous then what disincentivizes the same action. And, as a heuristic, all entities(besides God) have a finite existence before their energy(eternal consciousness) goes to the afterlife( paraphrased from these sources : 1)
, thus interpretation through disincentives is more rigorous than interpreting through incentives.
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People's behavior in history is based on different motives, ideologies and personal views. Although motivational factors may influence decision making, individuals and groups often act within the context of their own authority and time.
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Express the significance of image processing in remote sensing for agriculture. Discuss the various techniques used in image enhancement, classification, and interpretation for accurate crop monitoring.
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Please see the paper: for image enhancement techniques.
The merits and demerits of various image enhancement techniques are discussed in detail in the above article.
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I have data from a questionnaire study structured like so:
  • Age - Ordinal (18-24, 25-34, 35-44, 45-54, 55+)
  • Gender - Nominal (Male, Female)
  • AnxietyType - Nominal (Self-diagnosed, Professionally diagnosed)
  • AnxietyYears - Scale
  • ChronicPain - Nominal (No, Yes)
  • Response - Ordinal (Strongly Agree, Agree, Neutral, Disagree, Strongly disagree)
I am using SPSS to run an ordinal logistic regression with 'response' as my dependent variable and the other 5 as my independent variables.
When putting the data into SPSS I have coded it as follows:
  • Age - (18-24, 0) (25-34, 1) (35-44, 2) (45-54, 3) (55+, 4)
  • Gender - (Male, 0) (Female, 1)
  • AnxietyType - (Self-diagnosed, 0) (Professionally diagnosed, 1)
  • AnxietyYears - Scale
  • ChronicPain - (No, 0) (Yes, 1)
  • Response - (Strongly Agree, 1) (Agree, 2) (Neutral, 3) (Disagree, 4) (Strongly disagree, 5)
When I run the regression, this is my output with a significant result highlighted in yellow (attached).
From what I've read and understood about interpreting the results of an ordinal logistic regression, this is saying that:
"The odds ratio of being in a higher category of the dependent variable for males versus females is 2.244" which is saying that males are more likely to agree more strongly than females.
However, when I create a graph looking at the split of responses between males and females it shows that females are actually more likely to agree more strongly than males (see attached).
I would be grateful if anyone could help me to understand what I'm doing wrong - either in my modelling or my interpretation.
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Bruce Weaver - thank you so much for this, that is perfect. Once I reversed the coding for my DV it made perfect sense. Thank you again - I've been confused by this for days!
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The two countries above long expressed a duality of power and cultural antithesis from the end of WW2, and although that was perhaps not a genuine description of global power then or now, America's seeming loss of prestige recently and Russia's astounding economic and military failures have increasingly led to other political structures emerging centre stage.
Is this a valid interpretation and, if so, what next?
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A great power I suggest needs to be able to run a regional war and maintain its infrastructure. Russia cannot do that. What Russia does, and Putin in particular, is talk a good fight rather than fight one. Russian propaganda, its effects now diminishing because understood better than at this war's beginning, spearheaded by Putin has created a mirage of efficiency, still referenced by peripheral observers rather than more sophisticated ones, and gets eulogised over in a 'wait until the Russians start fighting', which, of course, they did two years ago. Putin's repeated claim that the war is over and Ukraine finished flies against reality (although I have heard it referenced by a number of self ordained experts like Mearsheimer, an academic grifter whom many quoted and quote). Putin may be actually deliberately misinformed by those around him who wisely want to keep the old lunatic happy, that is until all Russian windows are properly fixed.
Imagine if USA had begun to fall apart as regularly Russia does when faced with resistance. Is this the reason Russia mainly attacks civilians? All these factors present the reality of the Russian state and its inability to build up efficient infrastructure due mainly to the cronyism and nepotism within the elite.
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The question is about the legal landscape surrounding a relatively new technology. How can existing legal frameworks, designed for traditional paper contracts, adapt to the automated and self-executing nature of smart contracts? This includes questions about contract formation, validity, interpretation, and enforcement in the context of blockchain technology. How do existing laws in different jurisdictions (e.g., contract law, consumer protection, securities regulations) interact with smart contracts? This can vary depending on the type of smart contract, the assets involved, and the parties' geographical location.
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Hi Artem, as a Ghanaian and African, I will contextualize your question within the Ghanaian and African contract law context and make statements to support the answer I provide.
Ghana's Contract Act is based on English common law principles of offer, acceptance, consideration, capacity, and intention to create legal relations. Smart contracts challenge these foundations by encoding agreements directly into blockchain networks using rigid, self-executing code. Ghana's focus on objective determination of mutual assent and valid consideration struggles to adapt to this automated paradigm. Similarly, Nigeria, Kenya, and Rwanda rely on identical English contract law doctrines around consent, invalidating factors, and enforceability. None of their prevailing acts conceptualized blockchain's ability to transmit assets and trigger irrevocable transfers through decentralized execution. Regional legislation also emphasizes written documents and wet ink signatures, which smart contracts bypass through cryptographic validation. While Ghana's Contract Act values flexibility and good faith in contractual dealings, smart contracts' utter reliability on strictly defined parameters clashes with this. Ultimately, the rigid and transnational qualities of smart contracts conflict with common law African nations upholding English principles valuing documented intent, subjective mutuality, and jurisdictional authority. Adapting legacy frameworks remains a key challenge.
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I see a lot of mathematics but few interpretations in time (how it evolves, step by step with its maths).
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You can look into Online applets that present the evolution of the polarization vector associated with single Qubit quantum states on or inside of the Bloch sphere, under the effect of Unitary transformation or decoherence transformations.
On the Quantum Computing platform QISKIT, this can also be possibly visualized.
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In most of the research papers discussing diversity of endophytic fungi, molecular identification by ITS rDNA sequencing is usually followed by phylogenetic analysis. I am unable to understand what exacly is the importance of the analysis. I understand that as the name suggests it is done to understand phylogenetic relationships but how that is of any consequence in understanding the diversity of fungi or how to interpret the phylogentic tree is beyond my knowledge. Please help me understand.
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The phylogenetic tree helps place a species in its family tree, revealing similarities and differences with other species. If you need guidance on creating a tree from the ITS sequence, feel free to email me, and I'll share some helpful video links.
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In an era defined by the digitization of measurement processes and the increasing use of artificial intelligence, do you believe that focusing on the digitization of high-precision measurements through AI approach applications is advantageous? For instance, imagine an AI interpreter for analog instruments using optical vision.
This question arises considering the questionable reliability inherent in AI, based on probabilistic algorithms that can generate precise but not necessarily infallible measurements. Additionally, there is complexity in evaluating uncertainty in automatic measurements, considering environmental factors such as lighting and the quality of the optical viewer that could affect the reliability of results. How can we balance the promise of AI precision with the need for absolute reliability in high-precision metrology, especially concerning traceability to primary standards?"
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This seems like the last place to use unverified AI conclusions. Here we need conventional, provable fact and derivation, not a cauldron of probabilistic beliefs and correlations.
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All interpretations of dead languages are unfalsifiable, thus, what is the margin of error for interpreting? How? Why?
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Explore the integration of symbolic reasoning into machine learning models for improved interpretability. How does this approach contribute to understanding and explaining intricate decision-making processes in complex systems?
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Symbolic machine learning (SML) offers several ways to enhance interpretability and reasoning in complex models:
1. Transparent Representation of Knowledge:
  • SML uses symbols (like words or mathematical expressions) to represent concepts and relationships, making the model's knowledge explicit and understandable to humans.
  • This contrasts with traditional machine learning approaches, which often encode knowledge in numerical weights and connections that are opaque to human interpretation.
2. Integration of Domain Knowledge:
  • SML allows you to directly incorporate domain knowledge, rules, and constraints into the learning process.
  • This guides model development, improves accuracy, and ensures consistency with established knowledge.
  • It also makes it easier to understand the model's reasoning because it aligns with human understanding of the domain.
3. Explainable Reasoning:
  • SML models can provide clear explanations for their predictions or decisions.
  • This is because their symbolic representations allow for tracing the model's reasoning steps and identifying which rules or facts led to a particular output.
  • This is crucial for building trust in AI systems, especially in sensitive domains like healthcare or finance.
4. Leveraging Logic and Reasoning:
  • SML can explicitly incorporate logical reasoning capabilities into machine learning models.
  • This allows models to perform deductive inference, handle uncertainty, and make decisions based on logical rules rather than just statistical patterns.
5. Facilitating Transfer Learning:
  • Symbolic knowledge can often be transferred more easily between different tasks or domains than learned numerical representations.
  • This makes SML models potentially more adaptable and efficient for learning in new settings.
Specific techniques within SML that enhance interpretability and reasoning include:
  • Decision trees: Visualizing decision paths for clear explanations.
  • Rule-based learning: Extracting explicit rules to understand model behavior.
  • Inductive logic programming: Learning logical rules directly from data.
  • Neural-symbolic integration: Combining symbolic reasoning with neural networks for enhanced capabilities.
Applications where SML is particularly beneficial:
  • Healthcare: Interpretable diagnosis and treatment recommendations.
  • Financial risk assessment: Transparent decision-making for risk mitigation.
  • Scientific discovery: Generating explainable hypotheses and reasoning over scientific knowledge.
  • Legal reasoning: Assisting with legal analysis and decision-making.
  • Natural language understanding: Interpreting text and generating explanations for language-based tasks.
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Explore the impact and strategies of feature engineering on predictive models in applied data science. Seek insights into techniques that practitioners find most beneficial for improving model accuracy and interpretability.
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After three days, no-one has answered because it looks like an assignment or homework question.
Do some reading and also work through some exercises in which you have not done any feature engineering and where you have completed some feature engineering on the same data. After that, do please ask more specific questions.
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Western blotting
I got bands of the protein of interest,
I need to do the normalization of the proteins not against a housekeeper protein, but against the total amount of protein per lane.
using ImageJ software, how can I do it ?
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Hello, I found a video tutorial on ImageJ for western blot analysis. Hope it helps https://www.youtube.com/watch?v=u-u3G7JhIAo
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How to interpret d spacing and saed pattern in hrtem of nanoferrite sample. please help?
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Hey there Santosh Arade! 👋 When it comes to analyzing nanoferrite samples using HRTEM (High-Resolution Transmission Electron Microscopy), understanding the ins and outs of SAED (Selected Area Electron Diffraction) patterns and d spacing is crucial. 🔍 SAED is a powerful technique that allows us to study the crystal structure of materials at the nanoscale by diffracting a beam of electrons off the sample. 💡 The resulting pattern contains information about the crystallographic planes in the material, and by analyzing these patterns, we can determine the d spacing (the distance between crystal planes) and infer information about the crystal lattice. 🤝 To analyze SAED patterns in nanoferrite samples, we typically follow these steps: 1. Spot Analysis: 🔍 Identify and analyze the spots on the SAED pattern. Each spot corresponds to a set of crystallographic planes, so we need to determine which planes these are. 2. Indexing: 🔍 Determine the Miller indices of the planes associated with each spot. This helps us identify the specific crystallographic orientation of the planes. 3. Determination of d Spacing: 🔍 Measure the distance between the spots and use this information to calculate the d spacing for each set of planes. 4. Crystal Structure Analysis: 🔍 Once we have the d spacing values, we can compare them with known crystal structures of nanoferrites. This step helps us identify the crystal phase and gain insights into the material's properties. As an engineer, I can tell you Santosh Arade that interpreting HRTEM data requires a solid understanding of crystallography and materials science. 🔬 It's important to have a good grasp of the underlying principles to accurately analyze the data and draw meaningful conclusions. So, if you Santosh Arade have any specific data or patterns you'd like to analyze, feel free to share them with me! 🤝 I'd be happy to help you Santosh Arade interpret them and gain a deeper understanding of your nanoferrite sample. 🔍
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I'm currently facing an issue in my ARDL
estimation, the model has decided to use
0 lags for one of the variables, but it is not
showing the short-run coefficient. Instead
this is shown: Variable interpreted as Z =
Z(-1) + D(Z). How can this be interpreted?
Does it mean that there is no short-run
relationship?
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AUTOREGRESSIVE DISTRIBUTED LAG (ARDL) MODEL 1
Autoregressive distributed lag (ARDL) model was established by Pesaran, Shin, and Smith (2001). Autoregressive distributed lag model is used where the dependent variable is a function of its own past lagged values as well as current and past values of other explanatory variables.
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Is it possible for the solution of the Fokker-Planck equation to have negative values? I am referring to the mathematical aspect, irrespective of its physical interpretation. Additionally, considering that the solution represents a probability distribution function, is it acceptable to impose a constraint ensuring that the solution remains strictly positive?
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From my realization, I like to propose the following meaning/interpretation/significance of the term CHRISTMAS
'C' for Cordiality,
'H' for Humanity,
'R' for Rightfulness,
'I' for Integrity,
'S' for Simplicity,
'T' for Tolerance,
'M' for Mindfulness,
'A' for Accountability,
& 'S' for Sincerity.
Is my interpretation acceptable?
Also, I request all to provide if better interpretation of the term CHRISTMAS is found.
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@ Piermauro Catarinella ,
I am very much anxious to know why Western European countries abolished the words "Christmas" and "Merry Christmas" and have replaced by "Winter Festivity". What is the significance of the term "Winter Festivity" and What are the merits of this term over the earlier twos ?
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I will also need the interpretation concerning the reference variable.
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Yadpiroon Siri Thanks for your answer and sorry for misleading you. I should have written independent variable rather than dependent variable. The dependent variable is dichotomous (Return vs. not Return), while the independent variable comprises 3 categories: urban, rural and camp.
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This question delves into the domain of deep learning, focusing on regularization techniques. Regularization helps prevent overfitting in neural networks, but this question specifically addresses methods aimed at improving interpretability while maintaining high performance. Interpretability is crucial for understanding and trusting complex models, especially in fields like healthcare or finance. The question invites exploration into innovative and lesser-known techniques designed for this nuanced balance between model performance and interpretability.
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One way to avoid overfitting is to use regularization techniques, such as L1 or L2 regularization, which penalize large weights and biases. Another technique is to use dropout, which randomly drops out neurons during training, forcing the model to learn more robust features. While these well-known methods are widely used, there are some innovative and lesser-known techniques that aim to strike a balance between model performance and interpretability. Here are a few such techniques:
1. DropBlock: DropBlock is an extension of dropout, but instead of randomly dropping individual neurons, it drops entire contiguous regions. By dropping entire blocks, DropBlock encourages the model to focus on a more compact representation, potentially improving interpretability.
2. Group LASSO Regularization: Group LASSO (Least Absolute Shrinkage and Selection Operator) extends L1 regularization to penalize entire groups of weights simultaneously. LASSO adds a penalty term to the standard linear regression objective function, which is proportional to the absolute values of the model's coefficients. When applied to convolutional layers, Group LASSO can encourage sparsity across entire feature maps, leading to a more interpretable model. The key characteristic of LASSO is its ability to shrink some of the coefficients exactly to zero. This results in feature selection, effectively removing less important features from the model. The regularization term in LASSO is controlled by a parameter, often denoted as λ (lambda). The higher the value of λ, the stronger the regularization, and the more coefficients are pushed towards zero. LASSO is particularly useful when dealing with high-dimensional datasets where many features may not contribute significantly to the predictive power of the model.
3. Elastic Weight Consolidation (EWC): EWC is designed for continual learning scenarios, where the model needs to adapt to new tasks without forgetting previous ones. It adds a penalty term based on the importance of parameters for previously learned tasks. EWC helps retain knowledge from earlier tasks, contributing to model interpretability across a range of tasks.
4. Adversarial Training for Interpretability: Introducing adversarial training not only for robustness but also for interpretability. Adversarial examples are generated and added to the training data to make the model more robust and interpretable. Adversarial training can force the model to learn more robust and general features, potentially making its decisions more interpretable.
5. Kernelized Neural Networks: Utilizing the kernel trick from kernel methods to introduce non-linearity in a neural network without adding complexity to the model architecture. By incorporating kernelized layers, the model may learn more interpretable representations, as the kernel trick often operates in a higher-dimensional space.
6. Knowledge Distillation with Interpretability Constraints: Combining knowledge distillation with interpretability constraints to transfer knowledge from a complex model to a simpler, more interpretable one. The distilled model, while maintaining performance, can be inherently more interpretable due to its simplicity.
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I need your opinion on my research work.
I am going to Validating the SGRQ. I am planing to do EFA and CFA on 50 variable of SGRQ. I found some previous research done factor analysis on SGRQ.
When I analysed EFA, I got following results.
1. Assumptions
a. MISSING - LISTWISE
b. ROTATION - VARIMAX
c. CRITERIA FACTORS ITERATE(25)
d. FORMAT SORT BLANK(0.3)
e. EXTRACTION Principal Component Analysis
KMO and Bartlett's Test
Kaiser-Meyer-Olkin Measure of Sampling Adequacy. 0.476
Bartlett's Test of Sphericity
Approx. Chi-Square - 2089.212
df- 1225
Sig.- 0.000
communality - all 50 variables showed - more tham 0.5
15 factors identified with more than one EV
Some factors have two variables.
Can you help me to interpret ?
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Dear friend,
There is a lot of confusion here. First of all, I'm talking about using EFA and CFA is nonsense because I'm either using one or the other and I'm doing it in the context of my scientific intent. It shouldn't look like I'll just do it and see. Regarding the results (KMO indicates that the data is not suitable for the use of this type of analysis - I recommend a thorough study of the correlation matrix). At the same time, I would like to note that Ste did not perform EFA or CFA, but PCA with regard to the chosen estimate. I assume that you used SPSS and left everything in the basic settings, that's a mistake. We also do not know what the research design is, the choice of rotation can also be a problem. Much more than a few numbers is needed for interpretation. It is necessary to understand the research, what is hidden behind the variables, as well as the overall meaning and significance of the analysis.
I recommend thinking more deeply about the meaning of analysis and a deeper understanding of outputs as well as input information and methods.
Good luck.
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I have three native plant proteins. After digesting them, their peptides were analyzed through LCMS Agilant MassHunter qualitative analysis. I have no idea how to analyze the chromatogram peaks and spectra peaks through TIC Scan, ESI Scan, and all. Please, someone guide me on how I could interpret it and identify the proteins, as I have raw data.
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To better understand what you are asking, please first familiar yourself with the basics of HPLC and also HPLC-MS (LC-MS) analysis. Interpretation of the data requires that you first understand the techniques used and instrument settings. Their are no "universal settings" so errors are easy to make. Please contact a professional LC-MS laboratory or experienced industrial chromatographer at your school for assistance. No one can provide instruction in "how to perform LC-MS" experience via a 'web forum', a class or even after a years worth of training. Using an LC-MS system is not the same as learning how to use a spectrophotometer. Learning just the basics of this complex technique just for one group of compounds and/or one mode of chromatography can take many years of full-time work.
As a student, your time may be best spent learning how to work with someone who already has this experience and can help you directly with your project. This will increase the chances that the data YOU collect and any interpretations made are accurate.
  • *An LC-MS system will always output data, but only when setup by a skilled operator with many years of professional training with a valid HPLC method and proper settings will the data be of use to you. Never assume that the data you have collected is valid until after the method has been evaluated by a professional chromatographer. Correct interpretation can not start until after the method used has been checked (NOTE: Many LC-MS methods that we review turn out to be invalid so any conclusions drawn are also invalid).
The above process will also save you the most time and teach you an important skill (**how to work with other scientists who have the years of experience in areas outside of your own).
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A new publication for discussion.
Abstract
The photon plays a fundamental role not only in science, but also in cosmology, which is concerned with the origin of the universe and its development. A photon is an elementary particle without mass that is responsible for electromagnetic interactions. It is based on the standard model of particle physics, which also explains the behaviour of photons and particles at the subatomic level. Photons have their origin in the Big Bang and there is nothing in the standard model to suggest that photons are associated with an extra dimension. Nevertheless, it is an interesting idea to consider the metaphysical aspect of an additional dimension of the photon. This paper speculates on a connection between the photon and an extra dimension based on current physics and analyzes it with the help of a theoretical thought experiment from special relativity. The different behaviours between energetic and material particles that can be observed in the laboratory daily should also not be ignored and play a decisive role.
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Here is a new view on this matter:
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People like 'Michio Kaku' and 'Carlo Rovelli' etc are saying that time does not exist.' It is an illusion'.
I will not agree with the statement that 'time doesn't exist'.
As per my view 'Time must exist. It is also like other entities such as mass, space etc. dynamics of space and matter is an effect of time. Time is a crucial part for 'physics of consciousness'. Time is not an illusion. It changes reality by transforming physical laws emphasized by special relativity and general relativity and connected to ' concept of consciousness' by which living things aware of the physical universe and objects.
Share your opinions...Your opinions also valuable
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For me it seems that it is not an easy task. even questioning 'big bang'.
may be my imagination is crossing the limits....but some logical proofs are there to support my own imagination.
"This is connected to a concept related to 'Double relativity Effect" I published this abstract in book of abstracts of International conference on Relativity' -2005 at Amravathi INDIA. Also I sent a manuscript to Prof. Hawking , Cambridge .
It started from a question ' why light velocity is constant for all inertial frames of reference.
Of course, now my ideas developed a lot and published also.
Today I got an idea that the difference between special relativity and General relativity is the cause for these abnormal experimental results.
space and space time are different from observers view. due to this the space is infinite but space time is limited. Space will be infinite when the signal reaches maximum velocity that is light velocity. our observation is in space only not in time . So the distance is up to the reach of infinite.
In one of my paper just I proposed some equations for experimental verification. refer paper: Kodukula, S.P.(2021) Dark Energy Is a Phenomenal Effect of the Expanding Universe-Possibility for Experimental Verification. Journal of High Energy Physics , Gravitation and Cosmology,7, 1333-1352.
I will try to publish a paper substantiating this cosmological idea as soon as possible.
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My design of study is interpretative phenomenology ( study on experiences of operating room staff in robotic assisted surgeries). Could I use thematic analysis or IPA? As my design is Interpretative phenomenology, is it mandatory that I should use IPA?
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There are several approaches to what is known as Interpretive Phenomenology besides J. Smith's IPA , and I recommend the methods-oriented summaries in Beck's book, Introduction to Phenomenally: Focus on Methodology.
What IPA and Thematic Analysis have in common is an emphasis on coding, which you will not find in most approaches to Interpretive Phenomenology.
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I have some issues with wells in Petrel:
A well is at the right position in 2D interpretation window whereas it's not in a 3D window (see screenshots). I do not understand why. Any idea ?
In 3D it looks like depth is displayed in the time domain.
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I have the answer: The 3D window was set to "any" (see menus on top of the window) instead of "TWT" whereas it was TWT in the 2D window. Everything's ok now !
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kindly help me to interpret that this data follows which type of isotherm. it looks abnormal or if anyone can explain lease provide references.
Thanks in advance
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As both professor. have mentioned, i recommend you to degas your sample at high temperature. Usually high surface area samples with less mass in sample holder results in uplifting of samples during adsorption desoprtion cycle. Take more sample quantity and degas the sample for higher temperature 350 to 400 based on your sample thermal stability.
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Dear Sir/Mam,
I don't know how to interpret the results of J statistic and Prob(J-Statistic) in difference GMM?
J statistic value for my analysis is 19.99
Prob(J Statistic) is 0.45.
Kindly guide me how to interpret. Thank you
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Good explanation.
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In NBO analysis by Gaussian I am getting BD(3) and BD(3)* . What do they mean?
How to interpret them
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Thank u Sir/ Madam
I would like to get the clarification for BD(3). It represents which type of orbital and which type of transition occurs between BD(3) and BD(3)*?
Thank u Sir/ Madam
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In navigating the complex landscape of medical research, addressing interpretability and transparency challenges posed by deep learning models is paramount for fostering trust among healthcare practitioners and researchers. One formidable challenge lies in the inherent complexity of these algorithms, often operating as black boxes that make it challenging to decipher their decision-making processes. The intricate web of interconnected nodes and layers within deep learning models can obscure the rationale behind predictions, hindering comprehension. Additionally, the lack of standardized methods for interpreting and visualizing model outputs further complicates matters. Striking a balance between model sophistication and interpretability is a delicate task, as simplifying models for transparency may sacrifice their intricate capacity to capture nuanced patterns. Overcoming these hurdles requires concerted efforts to develop transparent architectures, standardized interpretability metrics, and educational initiatives that empower healthcare professionals to confidently integrate and interpret deep learning insights in critical scenarios.
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Good afternoon Subek Sharma, as a developer of deep learning models in collaboration with clinical pathologists, I understand the challenges and possibilities that these models present in medical research. My focus is on balancing accuracy and transparency to ensure that these models are reliable and effective support tools in medical decision-making.
The key to achieving both precision and transparency in deep learning for medical research lies in the synergy between technology and human experience. The deep learning models we develop are designed to identify patterns, characteristics, and sequences that may be difficult for the human eye to discern. This does not imply replacing the physician's judgment, but rather enriching it with deep and detailed insights that can only be discovered through the data processing capabilities of these tools.
Transparency in these models is crucial for generating trust among medical professionals. We are aware that any decision-support tool must be transparent enough for physicians to understand the logic behind the model's recommendations. This involves a continuous effort to develop models whose internal logic is accessible and understandable to health professionals.
In our work, we strive to balance the sophistication of the model with its interpretability. We understand that excessive simplification can compromise the model's ability to capture the complexity in medical data. However, we also recognize that an overly complex model can be an incomprehensible black box for end users. Therefore, our approach focuses on developing models that maintain a high level of accuracy while ensuring that physicians can understand and trust the provided results.
Looking towards the future, we see a scenario where artificial intelligence will not only be a data interpretation tool but also a means for continuous patient monitoring and support. In this landscape, the final decision will always rest with the expert physician, but it will be informed and supported by the deep analysis and perspective that artificial intelligence can provide.
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how d i interpret or determine with the mesure distance the pitchand compare characteristic freature szeand density among three media with statistical data things like total projected area, mean grain areaand mean grain size
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Chinedu Onyeke You can use "Gwyddion" software to analyze AFM data.
Steps:
1. You can drag or import the raw data to open your data
2. (Optional) Use some corrections, if necessary.
3. 'CLICK' on "statistics" to get most of the data required.
If you need more post-process analysis, you can download the user manual.
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For a non-normally distributed small sample (N<100), after verifications from both numerical- and graphical analyses, non-parametric tests are usually performed to test the relevant hypotheses. Subsequent interpretations are then made on the basis of those non-parametric tests. Now, my question is whether these results and interpretations (involving human subjects) based on non-parametric tests are acceptable in a Doctoral thesis and/or publications in good quality journals in Social Sciences? Also I would like to know, under which experimental and statistical conditions (e.g., skewness values, kurtosis values, sample size etc.) - parametric tests can be performed even if the significance of the relevant Statistics from both the Kolmogorov-Smirnov (with Lilliefors Significance Correction) and Shapiro-Wilk tests are found to be .000 ? Kindly provide your valuable suggestions in this regard.
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The knee-jerk reaction of switching to non-parametric tests when the assumption of normal distribution for the variable of interest is obviously unfitting is a common, old-fashioned, and a statistically rather illiterate reaction. It would be more appropriate to go for a better understanding of the data-generating process and to find a more appropriate statistical model allowing to test the relevant hypothesis. You wrote:
"non-parametric tests are usually performed to test the relevant hypotheses"
This may be the intention of the researcher, but this is not what is usually provided by the non-parametric tests. Most of the non-parametric procedures are based on the analysis of ranks, what translates to a comparison of distributional shapes, at best with a relatively high sensitivity to detect location shifts, besides detecting other differences. It seems to be largely ignored that tests like the Wilcoxon-Mann-Whitney U-test is testing the hypothesis of stochastic equivalence, which implies a location shift only under strict additional assumptions which are very clearly unreasonably in almost all practical situations (namely that the distributions are identical in all groups except for the location, so they must all have the same variance and the same kurtosis and all higher moments must also be identical).
Thus, applying an U-test instead of a t-test means to change the hypothesis being tested, demonstrating stochastic non-equivalence may just not be useful for the problem at hand, where typically a conclusion should be drawn about which of the populations has the higher (or lower) expected value.
This is different for non-parametric tests based on a resampling/bootstrapping procedure to infer the sampling distribution under the appropriate null hypothesis. These procedures are rarely used and they have only very little power for small sample sizes. They are also more prone to project any bias in the sample selection affecting other characteristics but the mean into the result.
So just to answer the question in your title: yes, unfortunately!
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What are the key considerations, methodologies, and interpretive techniques for correctly applying and interpreting regression analysis in quantitative research, and how do they compare in terms of their accuracy, reliability, and suitability for different research contexts?
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I'm a firm believer in VISUALIZATION which is why i use R (and if i'm impatient, Excel) for all quantitative - and often for qualitative - analysis. if your study isn't viz-rich, it needs to be!
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I tested two analytes with the same a.a sequence, just different by 1a.a to one target protein. My SPR outcome looks like the attached figure below. Can I say the right one binds stronger than the left one? Please give me some comments to help me better understand how to interpret it or troubleshoot the issue.
Thank you very much for your help!
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Dear sir,
I didn't do the experiment myself but sent my protein and analytes for the service. It was failed to determine the kinetics because of the NSB, and the service was ended. I couldn't contact them to ask, and it is quite difficult for me in the first step to understand this method by reading on my own. Now I am trying to understand the result report with only the sensorgrams and figure out what is wrong. There is one beginning step I doubt it will affect the result is that my ligand pI is estimated 4.74 which is too close to their used dilution buffer pH for immobilization (SA, pH5.0) for amine coupling. My protein is truly turned turbid in that buffer.
Otherwise, I am reading to understand the NSB troubleshooting, which BSA using and adding Tween-20 didn't help in their re-run. I was confused because my analyte pI>9, the running buffer pH~7, perhaps caused NSB with the sensor or the protein was not in the right conformation for correct binding.
Anyway, please forgive me for my unclear and annoying question (I will delete the post then). There are still too many basic terms I need to understand it better before asking.
Thank you so much for your time and effort to help me.
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hello all,
i am analyzing some data and i found p value=0.1913 so it is statistically non significant, but the correlation value r= 0.8075, which indicates strong positive correlation.
how can i interpret the result. plz help
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It is a decision procedure that assumes too much about measurement and distribution of scores, and is vulnerable to systematic error if the null hypothesis is one of 'no difference' quite a small presence of systematic error will allow its rejection. Only the social 'sciences' use such a loose and vulnerable decision procedure nowadays. Most statisticians recommend at least a confidence interval approach. as I said, see https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5017929/
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What is the correct interpretation of the notation 'Soil organic carbon content in x 5 g/kg' in the context of soil datasets? If a dataset provides a value, such as 39, using this notation, what is the actual soil organic carbon content in grams per kilogram (g/kg) for that value?"
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My guess is that it's the increments in the artificial colour scale
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I am researching systematic reviews and meta-analyses of radon risk exposure from drinking water. The summary of the random effects models of 222Rn concentration is 25.01, and the 95% confidence intervals (CI) are 7.62 and 82.09) and displayed heterogeneity of (I2 = 100%; P < 0.001) with residual heterogeneity of (I2 = 62 %, p = 0.01). Can anyone interpret the result for me? Why I2 = 100% in this context? what is the significance of the residual heterogeneity?
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  • Mean estimated concentration of radon in drinking water is 25.01 Bq/L.
  • There is high heterogeneity (I2 = 100%), which means the effect sizes vary widely from one study to another.
  • There is residual heterogeneity (I2 = 62%, p = 0.01), which means that there are still some unknown factors contributing to the variability in the effect sizes between the studies.
  • The results suggest that there is a significant association between exposure to radon in drinking water and the risk of cancer.
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Dear colleagues, i want to know or understand how to present CCA results and interpret them. i also want to know if there is any statistical software that can help. Please add readable materials. Thank you.
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CANONICAL CORRESPONDENCE ANALYSIS (CCA AND PARTIAL CCA)
Canonical correspondence analysis investigates the links between a contingency table and a set of variables. Run CCA in Excel using the XLSTAT software.
Put this in google and read this there.
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I'm currently researching the levels of body image satisfaction of underweight and overweight adolescents. However, I'm having trouble finding scales with the full interpretation, specific scoring range, and questionnaire. I found some scales I can use for my study, but neither of the scales I found are incomplete. They have questionnaires but don't have any interpretation or scoring. Are there any scales for body image satisfaction that have a free manual, or if there's no manual, what is the specific interpretation and scoring range for that scale?
Thank you.
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Dear Carl, I'm very sorry, but I don't have any scales or manuals. But I'm sure that someone from the field will eventually come along, read this post and help you out!
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It can be in any studies that discuss the questionnaires used in the study and also in interpreting the scores for result and discussion. It really means a lot to me, because we are required to do a research in our University. Our independent variable is Physical Work Environment.
God bless everyone.
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I think that this study can be interesting for you
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Dear Researchers, I am looking for open-source Gravity/Magnetic data for interpretations via Oasis montaj Software and Voxi Earth Modeling. Please specify some sources where form the data is easily accessible.
Regards,
Ayaz
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Check the NGU (Geological Survey of Norway) website.
You can download most of our magnetic surveys for free.
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I conducted a bivariate analysis between independent and outcome variables. I got a crude odds ratio of less than one. I got an adjusted odds ratio greater than one for the same independent variables on multivariate analysis. How can I interpret it? Do you think it can happen? how?
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Hello Fisha Mehabaw Alemayoh. Readers will be better able to help you if you report the two ORs with their 95% CIs.
Meanwhile, are you aware of the distinction between positive and negative confounding?
In some disciplines, negative confounding is known as suppression.
HTH.