Is the mean squared error cost function always a convex ?
and where can I learn the proof.
Yes, it is always convex.
The proof is that the 2nd partial derivative of a polynomial of power 2 is always positive.
Is the mean squared error cost function always a convex ?
and where can I learn the proof.
Yes, it is always convex.
The proof is that the 2nd partial derivative of a polynomial of power 2 is always positive.