Quote:
Originally Posted by udaykamath
In SVM slides Lecture 14
On page 13 we had just converted the problem to minimization and had
minimize Lagrangian(alpha)=....
On page 14 we have
maximize Lagrangian w.r.t alpha subject to...
How did this change?

Thank you for asking. In slide 13, minimization is w.r.t. some of the variables, and for the rest of the variables it is maximization (per Lagrange/KKT method). The minimization has already been done in the derivation in slide 13, so only the maximization part remains in slide 14.