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Compare the kk-NN classifier, linear discriminant analysis (LDA) and the logistic model when it comes to...

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Basic Math

Compare the kk-NN classifier, linear discriminant analysis (LDA)and the logistic model when it comes to classification. Which isgenerally better?

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3.9 Ratings (508 Votes)
AnswerIn the LDA framework we can see that the log odds is givenbywhere c0 and c1 are functions of 1 2 and 2 By formulation of logistic regression we can see thatBoth are linear functions of x Hence both logistic regressionand LDA produce linear decision boundaries The onlydifference between the two approaches lies in the fact that 0 and1 are    See Answer
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