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Classification: Basic Concepts, Decision Trees, and Model ...

Classification: Basic Concepts, Decision Trees, and Model ...

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a single number would make it more convenient to compare the performance of different models. This can be done using a performance metric such as accuracy, which is defined as follows: Accuracy = Number of correct predictions Total number of predictions = f 11 +f 00 f 11 +f 10 +f 01 +f 00. (4.1) Equivalently, the performance of a model can be ...

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