What can happen, when I don't regularize bias in machine learning, no need to write code for bias?
<p>Well, I see some resolves about machine learning, all of them using regularize and write private code for bias, I think it is unnecessary. Instead, I write code for all weight (Theta) : Theta0, Theta1, ... to find grad and apply regularization for all Theta. 
Am I wrong ? Thank for all.</p>