How to measure a classifier''s quality

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How to measure a classifier's quality. You've just written a new classification algorithm and want to measure how well it performs on a test set, and compare it with other classifiers. What performance measure should you use? There are several standard answers. Let's assume the classifier gives an output y(x), where x is the input, which we won't discuss further, and that the true target value is t. In the simplest discussions of classifiers, both y and t are binary variables, but you might care to consider cases where y and t are more general objects also.

Reference no: EM131318960

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