20 return log(1+exp(1-z));
22 return 1-z + log(1+exp(z-1));
28 return -1 / (exp(z-1) + 1);
31 return -ez / (ez + 1);
38 return ez / (ez + 1)*(ez + 1);
double norm(double *v, double p, int n)
#define SG_NOTIMPLEMENTED
float64_t second_derivative(float64_t z)
float64_t loss(float64_t z)
float64_t first_derivative(float64_t z)
virtual float64_t get_update(float64_t prediction, float64_t label, float64_t eta_t, float64_t norm)
all of classes and functions are contained in the shogun namespace
virtual float64_t get_square_grad(float64_t prediction, float64_t label)