Exercise 7.3 Centering and ridge regression Assume that x =0, so the input data has been centered. Show that the optimizer of J(w, wo) (y - Xw-wol) (y – Xw – wo1) + \ww s wo W = = y (XTX + XI)-¹X¹y

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Exercise 7.3 Centering and ridge regression
Assume that x = 0, so the input data has been centered. Show that the optimizer of
J(w, wo)
(у
— Xw - wo1)" (у — Xw- wo1) + Aw"
is
wo
(X"x+ AI)-'x"y
W =
Transcribed Image Text:Exercise 7.3 Centering and ridge regression Assume that x = 0, so the input data has been centered. Show that the optimizer of J(w, wo) (у — Xw - wo1)" (у — Xw- wo1) + Aw" is wo (X"x+ AI)-'x"y W =
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