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Chapter 17 (Understanding and learning (User must know how algorithms work…
Chapter 17
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Confusion Matrix
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Left labels is actual, top is predicted
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Decision Tree Classifier
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Repeatedly find the most predictive feature at that instance and split it into two groups that are as homogenous as possible
Steps to create tree
- Find the most pretictive feature and place it at the root of the tree
- Split the feature into two groups at the point of the feature where the two groups are homogenous as possible
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- repet step 2 for each new branch
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