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Decision Tree explained

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Sep 23, 2025
20:17

From the "20 Questions game" to medical diagnosis - see how Decision Trees select yes/no questions using (weighted) entropy and information gain, and use pruning for better generalization. Learn the difference between black-box and white-box models. I also included an explainable, real-world example on the Pima Indians Diabetes data. More of my materials on Decision Trees: - interactive Live Script designed as an aid in understanding the Decision Tree fundamentals (accessible through MATLAB Online): https://mathworks.com/matlabcentral/fileexchange/180564-introduction-to-decision-tree - article on the Decision Tree basics (in Polish): https://ont.com.pl/articles/DecisionTree Music: - https://pixabay.com/music/meditationspiritual-piano-dreamcloud-meditation-179215/ References: 1. https://kaggle.com/datasets/uciml/pima-indians-diabetes-database 2. https://en.wikipedia.org/wiki/Decision_tree 3. https://en.wikipedia.org/wiki/Decision_tree_learning Timestamps: 00:00 Introduction 01:10 "What to wear" example 02:04 Decision Tree structure 03:45 Diabetes diagnosis example 06:55 Proper split 09:15 Entropy 12:58 Information gain 15:45 Next splits 17:22 Decision Tree interpretation 17:54 Pruning 18:28 New data samples usage 18:55 White box model 19:08 Timeline 19:28 Pros and cons

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Decision Tree explained | NatokHD