DomainAdaptationSVM.h

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00001 /*
00002  * This program is free software; you can redistribute it and/or modify
00003  * it under the terms of the GNU General Public License as published by
00004  * the Free Software Foundation; either version 2 of the License, or
00005  * (at your option) any later version.
00006  *
00007  * Written (W) 2007-2009 Christian Widmer
00008  * Copyright (C) 2007-2009 Max-Planck-Society
00009  */
00010 
00011 #ifndef _DomainAdaptation_SVM_H___
00012 #define _DomainAdaptation_SVM_H___
00013 
00014 
00015 #include "lib/common.h"
00016 #include "classifier/svm/SVM_light.h"
00017 
00018 #include <stdio.h>
00019 
00020 namespace shogun
00021 {
00023 class CDomainAdaptationSVM : public CSVMLight
00024 {
00025 
00026     public:
00027 
00029         CDomainAdaptationSVM();
00030 
00031 
00040         CDomainAdaptationSVM(float64_t C, CKernel* k, CLabels* lab, CSVM* presvm, float64_t B);
00041 
00042 
00044         virtual ~CDomainAdaptationSVM();
00045 
00046 
00052         void init(CSVM* presvm, float64_t B);
00053 
00054 
00063         virtual bool train(CFeatures* data=NULL);
00064 
00065 
00070         virtual inline EClassifierType get_classifier_type() { return CT_DASVM; }
00071 
00072 
00078         virtual CLabels* classify(CFeatures* data);
00079 
00080 
00085         virtual CSVM* get_presvm();
00086 
00087 
00092         virtual float64_t get_B();
00093 
00094 
00099         virtual float64_t get_train_factor();
00100 
00101 
00105         virtual void set_train_factor(float64_t factor);
00106 
00107 
00109         inline virtual const char* get_name() const { return "DomainAdaptationSVM"; }
00110 
00111 
00112     private:
00113 
00114 #ifdef HAVE_BOOST_SERIALIZATION
00115         friend class ::boost::serialization::access;
00116         // When the class Archive corresponds to an output archive, the
00117         // & operator is defined similar to <<.  Likewise, when the class Archive
00118         // is a type of input archive the & operator is defined similar to >>.
00119         template<class Archive>
00120         void serialize(Archive & ar, const unsigned int archive_version)
00121         {
00122 
00123             SG_DEBUG("archiving CDomainAdaptationSVM\n");
00124 
00125             // serialize base class
00126             ar & ::boost::serialization::base_object<CSVMLight>(*this);
00127 
00128             // serialize remaining fields
00129             ar & presvm;
00130 
00131             ar & B;
00132 
00133             ar & train_factor;
00134 
00135             SG_DEBUG("done archiving CDomainAdaptationSVM\n");
00136 
00137         }
00138 #endif //HAVE_BOOST_SERIALIZATION
00139 
00140     protected:
00141 
00146         virtual bool is_presvm_sane();
00147 
00148 
00150         CSVM* presvm;
00151 
00152 
00154         float64_t B;
00155 
00156 
00158         float64_t train_factor;
00159 
00160 };
00161 }
00162 #endif
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