Questions tagged [feature-importances]

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Node Importance in scikit learn

I'm trying to understand exactly how feature_importances in scikit-learn's RandomForestClassifier works. I managed to find this helpful link explaining most of the process: https://towardsdatascience....
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Why are random forest permutation importances almost all zero?

I have built a random forest binary classification model with 18 input variables. Gini importance (MDI) shows that all variables have positive importance, although some are very small. According to ...
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Is it possible that shap feature importance result will be more accurate than gain?

XGboost build the boosted tree in the following way: Each level of each tree (the phase of selecting the next feature with conditional value) selected according ...
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Why is XGBClassifier in Python outputting different feature importance values with the same data across different repetitions?

I am fitting an XGBClassifier to a small dataset (32 subjects) and find that if I loop through the code 10 times the feature importances (gain) assigned to the features in the model varies slightly. I ...
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Is feature importance from classification a good way to select features for clustering?

I have a large data set with many features (70). By doing preprocessing (removing features with too many missing values and those that are not correlated with the binary target variable) I have ...
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Feature Interactions vs Feature Importances [closed]

Can somebody explain in-detailed differences between Feature Interactions and Feature Importances? And their applications?