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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__ */
Base class of the labels used in Structured Output (SO) problems.
virtual void init_primal_opt(float64_t regularization, SGMatrix< float64_t > &A, SGVector< float64_t > a, SGMatrix< float64_t > B, SGVector< float64_t > &b, SGVector< float64_t > lb, SGVector< float64_t > ub, SGMatrix< float64_t > &C)
virtual float64_t delta_loss(CStructuredData *y1, CStructuredData *y2)
virtual CResultSet * argmax(SGVector< float64_t > w, int32_t feat_idx, bool const training=true)
virtual SGVector< float64_t > get_joint_feature_vector(int32_t feat_idx, CStructuredData *y)
virtual const char * get_name() const
double float64_t
Definition: common.h:48
virtual int32_t get_dim() const
Class CStructuredModel that represents the application specific model and contains most of the applic...
virtual CStructuredLabels * structured_labels_factory(int32_t num_labels=0)
The class Features is the base class of all feature objects.
Definition: Features.h:62
Class CMulticlassModel that represents the application specific model and contains the application de...
Base class of the components of StructuredLabels.

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