2 Commits

Author	SHA1	Message	Date
Al	562cc06eaf	[classification] Sparse version of logistic regression gradient which, given an array of the features/columns used in the input batch, only updates the gradient for that batch, even for the operations which otherwise would apply to the entire matrix (scaling by -1/m, regularization)	2016-01-09 01:33:33 -05:00
Al	4acf10c3a4	[classification] Multinomial logistic regression, gradient and cost function	2016-01-08 01:03:09 -05:00