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GradientEvaluation.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) 2013 Roman Votyakov
8  * Copyright (C) 2012 Jacob Walker
9  */
10 
11 #ifndef CGRADIENTEVALUATION_H_
12 #define CGRADIENTEVALUATION_H_
13 
14 #include <shogun/lib/config.h>
15 
19 
20 namespace shogun
21 {
22 
27 {
28 public:
31 
40  CGradientEvaluation(CMachine* machine, CFeatures* features, CLabels* labels,
41  CEvaluation* evaluation_criterion, bool autolock=true);
42 
43  virtual ~CGradientEvaluation();
44 
49  virtual const char* get_name() const { return "GradientEvaluation"; }
50 
55  virtual CEvaluationResult* evaluate();
56 
62  {
63  SG_REF(diff);
64  SG_UNREF(m_diff);
65  m_diff=diff;
66  }
67 
73  {
74  SG_REF(m_diff);
75  return m_diff;
76  }
77 
78 private:
80  void init();
81 
83  void update_parameter_dictionary();
84 
85 private:
88 
90  CMap<TParameter*, CSGObject*>* m_parameter_dictionary;
91 };
92 }
93 #endif /* CGRADIENTEVALUATION_H_ */

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