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Questions tagged [interpretation]

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How to interpret two continous variables output using GAM?

I really need help with GAM. I have to find out whether association is linear or non-linear by using GAM. The predictor variable is temperature at lag0 and the output is cardiovascular admissions (...
Hasan Sohail's user avatar
2 votes
0 answers
45 views

When is scaling and centering important?

There are some models such as PCA or SVM where scaling and centering of training data is essential. There are some models, mostly tree-based where scaling and centering is not required at all. I don't ...
xan's user avatar
  • 121
2 votes
0 answers
248 views

Shapley values for channel attribution equal to linear attribution

I am looking into Shapley values for online marketing attribution. In recent time many articles seem to have been made on this particular approach to attribution (there are more): https://medium.com/...
Tpeeters's user avatar
2 votes
1 answer
31 views

Suggestions for improvement? Time series of variation in relative frequency of emotion-related words in academic psychology over time

First time plotting and interpreting time series data and I have used a line plot for ease of use. I am aware this is incredibly basic, but any input/ recommendations would be much appreciated (e.g., ...
n.baes's user avatar
  • 39
2 votes
0 answers
130 views

Understanding CNN by visualizing class activations using GRAD_CAM

I followed the blog Where CNN is looking? to understand and visualize the class activations in order to predict something. The given example works very well. I have developed a custom model using ...
Ali Raza Memon's user avatar
1 vote
1 answer
42 views

Am I suppose to do any statistical test on results?

I am doing an email campaign. Before sending emails to users I divided my user base into treatment and control groups (50-50). Divided the groups in such a way that no difference in user behaviour. I ...
udaykumar gajavalli's user avatar
1 vote
0 answers
34 views

Standard Error interpretation help

I performed a standard error on my machine learning model to predict protein structure. The graph Im showing here is a snippet of the actual data and I deleted some irrelevant info. The y axis is the ...
hypermiler3's user avatar
1 vote
0 answers
27 views

Is there a statistical test for comparing my dataset percentages with published percentages?

I have a clinical dataset which is showing the percentage of A is 57% and B is 35% for where an tumours is initially found. However the literature is showing it is A is 73% and B is 23%. Is there a ...
Matt Smith's user avatar
1 vote
1 answer
33 views

Practical Interpretation of PCAs for a supplier analysis

I am using PCA to validate and research a set of 13 suppliers of products against a set of about 50 variables and performance indicators against an ideal "wish"-Supplier, mostly based on G. ...
Zilfalon's user avatar
1 vote
0 answers
68 views

Understanding, visualizing and interpreting CNN activations

I am working with the first layer of a CNN and trying to understand how to interpret the activation output. My CNN takes input from 3 channels (RBG picture) and the first layer is ...
User2321's user avatar
  • 111
1 vote
0 answers
38 views

paired t-test shows no difference between median and Wilcoxon test p value shows that there is a difference between median values ? How to interpret?

I have a dataset. I wanted to do paired t test on it. So I carried out normality test and it showed that it does not follow normal distribution. So I used Wilcoxon test in place of paired t test. The ...
pinky's user avatar
  • 151
1 vote
2 answers
1k views

How to interpret my logistic regression result with statsmodels

so I'am doing a logistic regression with statsmodels and sklearn. My result confuses me a bit. I used a ...
grumpyp's user avatar
  • 157
1 vote
0 answers
62 views

Can we use Shap to interpret output changes?

Can we calculate the difference between Shapley values to interpret changes in the output? More precisely, if we get Shapley values for two different inputs, can we compare them to understand how much ...
giogix's user avatar
  • 163
1 vote
0 answers
140 views

Difference between shap values and feature contributions

I always found both concepts a bit confusing since they are quite similar. Would someone provide clear example where to apply each? Shap values ref: https://towardsdatascience.com/explain-your-model-...
room13's user avatar
  • 133
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0 answers
7 views

Interpreting Centered 2-Way PDP

I have recently used scikit-learn's PartialDependenceDisplay.from_estimator function to display cICE plots in combination with PDPs using the ...
Guest's user avatar
  • 21
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0 answers
17 views

Which method is better to understand key drivers/feature importance in prediction?

After applying two different classifiers (EBM Classifier and Random Forest Classifier) and getting similar scores, I used InterpretML functionality to identify the most relevant features in each model....
Guilherme Atihe de Oliveira's user avatar
0 votes
0 answers
29 views

What does the shap interaction value of a feature with itself mean?

SHAP allows us to compute interaction effects by considering pairwise feature attributions. This leads to a matrix of attribution values representing the impact of all pairs of features on a given ...
figs_and_nuts's user avatar
0 votes
0 answers
16 views

What is the complexity of ICE (Individual conditional expectation) on ensemble trees

I'm evaluating different model-agnostic methods on gradient boosting or random forest model. For Shapley, specifically TreeSHAP, the complexity is O(TLD^2) according to Lundberg et al. 2018. T: #trees,...
wealthh2's user avatar
0 votes
0 answers
12 views

How to specify and interpret control variables in the model?

I'd like to build a classification model on customers across different countries, but not sure how to interpret the coefficient of those countries and other features, especially features that could be ...
Iris's user avatar
  • 3
0 votes
0 answers
14 views

What does positive value in LIME mean?

I'm exploring the workings of LIME in NLP models to understand how it elucidates positive and negative words. I possess a trove of documents resembling this excerpt: The UN children’s agency says the ...
asmgx's user avatar
  • 549
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0 answers
50 views

Help with multinomial logistic regression

I am a data science student and have the opportunity to work on an article regrading cardiac arrests in our country. For now I performed the multinomial regression model and I also plan on doing a ...
Ni Vaznu's user avatar
0 votes
0 answers
27 views

How do I interpret a Scatter Plot of probabilities?

Help me with interpretation of the following scatter plot
Amina Issa's user avatar
0 votes
0 answers
69 views

Shapley value calculation in the case of absent features

The basic assumption in Shapely value calculation (which is also known as situational importance) is the following: $$ v_i(x) = f(x_1, ..., x_n) - E[f(x_1, ...,X_i,..., x_n)] $$ that is, the ...
Sanyo Mn's user avatar
  • 123
0 votes
0 answers
7 views

Is ALE curve value constant for observations in the same interval?

I have been reading Chapter 8.2 of the Interpretable Machine Learning about Accumulated Local Effects (ALE) plots. It includes the following formula which defines the ALE value for a given value of ...
Mageentta's user avatar
0 votes
0 answers
25 views

Logistic regression negative coefficient interpretation (reciprocal of negative logistic coefficient )

Suppose if a dependent variable is having a disease (1) and not having a disease (0). similarly , independent variable is smoking and not smoking. here , not smoking as reference group. Again, if ...
Prasanna's user avatar
0 votes
0 answers
20 views

classification with rejection and how to interpret a 2D ambiguous data

Let's say we're going to train a classifier with the full data set. There's also a reject logic for ambiguous regions in the data. So, at the end, the final system outputs reject or 0 or 1. That is, ...
sci9's user avatar
  • 111
0 votes
0 answers
17 views

How "much" should belief be weighted against numerical measures of accuracy/correctness?

How "much" should belief be weighted against numerical measures of accuracy/correctness? It's possible to devise numerically low-quality models, but that have very good empirical validity, ...
mavavilj's user avatar
  • 416
0 votes
0 answers
54 views

What are some "best practices" for discovering true patterns in data without relying on "scores" as measures of accuracy?

What are some "best practices" for discovering true patterns in data without knowing about them and without relying on "scores" as measures of accuracy? In university I was always ...
mavavilj's user avatar
  • 416
0 votes
1 answer
445 views

how to visualize segmented labels in a already existing graph?

I am working on a project where I have to segment the image using multi-class segmentation (3 classes) on microscopic images. Now let's say that I am segmenting solid, liquid and gas images (this is ...
Aishwarya Shriniwas's user avatar
0 votes
1 answer
641 views

Can absolute or relative contributions from X be calculated for a multiplicative model? $\log{ y}$ ~ $\log {x_1} + \log{x_2}$

(How) can absolute or relative contributions be calculated for a multiplicative (log-log) model? Relative contributions from a linear (additive) model E.g., there are 3 contributors to $y$ (given by ...
Ben's user avatar
  • 141
0 votes
0 answers
52 views

What methods to get the intention behind questions (time, preferences, ...)?

I have a csv with different questions, answer and question types. So far I have only been able to differentiate the questions between muliple answers and likert scale. I would rather like to get the ...
Revolucion for Monica's user avatar