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 
00096         inline virtual const char* get_name() const { return "DomainAdaptationSVM"; }
00097 
00098 
00099     private:
00100 
00101 #ifdef HAVE_BOOST_SERIALIZATION
00102         friend class ::boost::serialization::access;
00103         // When the class Archive corresponds to an output archive, the
00104         // & operator is defined similar to <<.  Likewise, when the class Archive
00105         // is a type of input archive the & operator is defined similar to >>.
00106         template<class Archive>
00107         void serialize(Archive & ar, const unsigned int archive_version)
00108         {
00109 
00110             SG_DEBUG("archiving CDomainAdaptationSVM\n");
00111 
00112             // serialize base class
00113             ar & ::boost::serialization::base_object<CSVMLight>(*this);
00114 
00115             // serialize remaining fields
00116             ar & presvm;
00117 
00118             ar & B;
00119 
00120             ar & train_factor;
00121 
00122             SG_DEBUG("done archiving CDomainAdaptationSVM\n");
00123 
00124         }
00125 #endif //HAVE_BOOST_SERIALIZATION
00126 
00127     protected:
00128 
00133         virtual bool is_presvm_sane();
00134 
00135 
00137         CSVM* presvm;
00138 
00139 
00141         float64_t B;
00142 
00143 
00145         float64_t train_factor;
00146 
00147 };
00148 }
00149 #endif

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