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note 6: bayes decision rule

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Decision Theory; Generative and Discriminative Models 31 6 Decision Theory; Generative and Discriminative Models DECISION THEORY aka Risk Minimization [Today I’m going to talk about a style of classifier very di↵erent from SVMs. The classifiers we’ll cover in the next few weeks are based on probability.] [One aspect of probabilistic data is that sometimes a point in feature space doesn’t have just one class. Suppose your data is adult men and women with just one feature: their height. You want to train a classifier that takes in an adult’s height and…

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