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MulticlassModel.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 Thoralf Klein
8  * Written (W) 2012 Fernando José Iglesias García
9  * Copyright (C) 2012 Fernando José Iglesias García
10  */
11 
12 #ifndef _MULTICLASS_MODEL__H__
13 #define _MULTICLASS_MODEL__H__
14 
16 
17 namespace shogun
18 {
19 
26 {
27 
28  public:
31 
37  CMulticlassModel(CFeatures* features, CStructuredLabels* labels);
38 
40  virtual ~CMulticlassModel();
41 
43  virtual CStructuredLabels* structured_labels_factory(int32_t num_labels=0);
44 
49  virtual int32_t get_dim() const;
50 
64 
78  virtual CResultSet* argmax(SGVector< float64_t > w, int32_t feat_idx, bool const training = true);
79 
88 
101  virtual void init_primal_opt(
102  float64_t regularization,
107 
109  virtual const char* get_name() const { return "MulticlassModel"; }
110 
111  private:
112  void init();
113 
116  float64_t delta_loss(int32_t y1_idx, float64_t y2);
117 
118  private:
120  int32_t m_num_classes;
121 
122 }; /* MulticlassModel */
123 
124 } /* namespace shogun */
125 
126 #endif /* _MULTICLASS_MODEL__H__ */

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