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SquaredHingeLoss.h
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1 /*
2  * This program is free software; you can redistribute it and/or modify
3  * it under the terms of the GNU General Public License as published by
4  * the Free Software Foundation; either version 3 of the License, or
5  * (at your option) any later version.
6  *
7  * Written (W) 2011 Shashwat Lal Das
8  * Written (W) 2012 Fernando José Iglesias García
9  * Copyright (c) 2011 Berlin Institute of Technology and Max-Planck-Society.
10  */
11 
12 #ifndef _SQUAREDHINGELOSS_H__
13 #define _SQUAREDHINGELOSS_H__
14 
15 #include <shogun/lib/config.h>
16 
18 
19 namespace shogun
20 {
25 {
26 public:
31 
36 
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63 
74  virtual float64_t get_update(float64_t prediction, float64_t label, float64_t eta_t, float64_t norm);
75 
84  virtual float64_t get_square_grad(float64_t prediction, float64_t label);
85 
92 
98  virtual const char* get_name() const { return "SquaredHingeLoss"; }
99 };
100 
101 }
102 
103 #endif // _SQUAREDHINGELOSS_H__
float64_t loss(float64_t z)
Class CLossFunction is the base class of all loss functions.
Definition: LossFunction.h:57
float64_t second_derivative(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)
double float64_t
Definition: common.h:50
virtual ELossType get_loss_type()
virtual float64_t get_square_grad(float64_t prediction, float64_t label)
all of classes and functions are contained in the shogun namespace
Definition: class_list.h:18
Class CSquaredHingeLoss implements a squared hinge loss function.
virtual const char * get_name() const
ELossType
shogun loss type
Definition: LossFunction.h:28

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