Machine learning problem - binary classification, shattering,

3 (12 points) Shattering In this problem, consider a classifier f(x; a,b) = sign(ax'x b) where the feature vector x = (x1, x2]T E R2 and its prediction f(x; a,b) {-1, +1}. Besides, a, b E R are the model parameters and sign(z) is defined as: sign(2) = { 1, 220 , 2