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Mr. Dubey • 51.32K Points
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Q.) The kernel trick

(A) can be applied to every classification algorithm
(B) is commonly used for dimensionality reduction
(C) changes ridge regression so we solve a d ?? d linear system instead of an n ?? n system, given n sample points with d features
(D) exploits the fact that in many learning algorithms, the weights can be written as a linear combination of input points
Correct answer : Option (D) - exploits the fact that in many learning algorithms, the weights can be written as a linear combination of input points

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