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DistanceMachine.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) 2006-2009 Christian Gehl
8  * Written (W) 2006-2009 Soeren Sonnenburg
9  * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
10  */
11 
12 #ifndef _DISTANCE_MACHINE_H__
13 #define _DISTANCE_MACHINE_H__
14 
15 #include <shogun/lib/common.h>
17 #include <shogun/labels/Labels.h>
19 #include <shogun/machine/Machine.h>
20 
21 #include <stdio.h>
22 
23 namespace shogun
24 {
25  class CLabels;
26  class CRegressionLabels;
27  class CDistance;
28  class CMachine;
29 
34 class CDistanceMachine : public CMachine
35 {
36  public:
39  virtual ~CDistanceMachine();
40 
45  inline void set_distance(CDistance* d)
46  {
48  SG_REF(d);
49  distance=d;
50  }
51 
56  inline CDistance* get_distance() { SG_REF(distance); return distance; }
57 
67  void distances_lhs(float64_t* result,int32_t idx_a1,int32_t idx_a2,int32_t idx_b);
68 
78  void distances_rhs(float64_t* result,int32_t idx_b1,int32_t idx_b2,int32_t idx_a);
79 
85  virtual const char* get_name() const { return "DistanceMachine"; }
86 
94  virtual CMulticlassLabels* apply_multiclass(CFeatures* data=NULL);
95 
103  virtual float64_t apply_one(int32_t num);
104 
105  protected:
115  virtual void store_model_features()
116  {
117  SG_ERROR("store_model_features not yet implemented for %s!\n",
118  get_name());
119  }
120 
126  static void* run_distance_thread_lhs(void* p);
127 
133  static void* run_distance_thread_rhs(void* p);
134 
135  private:
136  void init();
137 
138  protected:
141 };
142 }
143 #endif

SHOGUN Machine Learning Toolbox - Documentation