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LPM.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) 2007-2009 Soeren Sonnenburg
8  * Copyright (C) 2007-2009 Fraunhofer Institute FIRST and Max-Planck-Society
9  */
10 
11 #ifndef _LPM_H___
12 #define _LPM_H___
13 
14 #include <shogun/lib/config.h>
15 #ifdef USE_CPLEX
16 
17 #include <stdio.h>
18 #include <shogun/lib/common.h>
21 
22 namespace shogun
23 {
43 class CLPM : public CLinearMachine
44 {
45  public:
47 
48  CLPM();
49  virtual ~CLPM();
50 
52  {
53  return CT_LPM;
54  }
55 
60  virtual void set_features(CDotFeatures* feat)
61  {
62  if (feat->get_feature_class() != C_SPARSE ||
63  feat->get_feature_type() != F_DREAL)
64  SG_ERROR("LPM requires SPARSE REAL valued features\n")
65 
67  }
68 
75  inline void set_C(float64_t c_neg, float64_t c_pos) { C1=c_neg; C2=c_pos; }
76 
77  inline float64_t get_C1() { return C1; }
78  inline float64_t get_C2() { return C2; }
79 
80  inline void set_bias_enabled(bool enable_bias) { use_bias=enable_bias; }
81  inline bool get_bias_enabled() { return use_bias; }
82 
83  inline void set_epsilon(float64_t eps) { epsilon=eps; }
84  inline float64_t get_epsilon() { return epsilon; }
85 
87  virtual const char* get_name() const { return "LPM"; }
88 
89  protected:
98  virtual bool train_machine(CFeatures* data=NULL);
99 
100  protected:
103  bool use_bias;
105 };
106 }
107 #endif //USE_CPLEX
108 #endif //_LPM_H___

SHOGUN Machine Learning Toolbox - Documentation