DM week 3 0.0 / 5 ? ComputingDM week 3UniversityOther Created by: mariolarcCreated on: 06-05-21 08:44 What is purity? A measure of how many different classes appear in a node of a decision tree. 1 of 4 What is stratification? The process of randomly sampling data to create training and test sets. 2 of 4 What is 1R? An algorithm for computing classification rules, based on class frequencies of individual attributes. 3 of 4 What is the true positive rate? The number of correctly predicted instances of a class divided by by the number of instances in this class. 4 of 4
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