Decision tree pruning - PowerPoint PPT Presentation

Lecture 4: Decision trees

Lecture 4: Decision trees. Example. Iris data: 3 classes (setosa, viriginica, versicolor). Petal width (PW). Petal length (PL). Decision trees. Simple Multiclass Not perfect, but close Comprehensible to humans How to build them?. K-d trees.

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A Comparison of Decision Tree Pruning Strategies

A Comparison of Decision Tree Pruning Strategies. By: Sherry Whitaker. A Comparison of Decision Tree Pruning Strategies. (Problem). Avoid overfitting when using Decision Trees Pre- and Post-Pruning Methods Determine how tree structure differs when using different pruning strategies.

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