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Performance evaluation of learning algorithms - Mohak Shah

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Recent Developments II: The H Measure I<br />

A criticism <strong>of</strong> the AUC was given by [Hand, 2009]. The argument<br />

goes along the following lines:<br />

The misclassification cost distributions (and hence the skew-­‐<br />

ratio distributions) used by the AUC are different for different<br />

classifiers. Therefore, we may be comparing apples and oranges<br />

as the AUC may give more weight to misclassifying a point by<br />

classifier A than it does by classifier B<br />

To address this problem, [Hand, 2009] proposed the H-­‐Measure.<br />

In essence, The H-­‐measure allows the user to select a cost-­‐weight<br />

function that is equal for all the classifiers under comparison and<br />

thus allows for fairer comparisons.<br />

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