Ridge regression consists of nding the w that minimizes ky xwk2 2 + kwk2 2, where the rst term corresponds to the squared error in the regression estimation and the second is a regularization term. here, x 2 rnd; w 2 rd; y 2 rn. show that the optimal w is w = (xtx + y, when the @ @w of the loss function is zero.

Will a heavier bowling ball hit pins better than a lighter bsll

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th