SHOGUN v0.9.0
ScatterSVM.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 3 of the License, or
00005  * (at your option) any later version.
00006  *
00007  * Written (W) 2009 Soeren Sonnenburg
00008  * Written (W) 2009 Marius Kloft
00009  * Copyright (C) 2009 TU Berlin and Max-Planck-Society
00010  */
00011 
00012 #ifndef _SCATTERSVM_H___
00013 #define _SCATTERSVM_H___
00014 
00015 #include "lib/common.h"
00016 #include "lib/config.h"
00017 #include "classifier/svm/MultiClassSVM.h"
00018 #include "classifier/svm/SVM_libsvm.h"
00019 
00020 #include <stdio.h>
00021 
00022 namespace shogun
00023 {
00025     enum SCATTER_TYPE
00026     {
00028         NO_BIAS_LIBSVM,
00029 
00031         TEST_RULE1,
00033         TEST_RULE2
00034     };
00035 
00050 class CScatterSVM : public CMultiClassSVM
00051 {
00052     public:
00054         CScatterSVM(void);
00055 
00057         CScatterSVM(SCATTER_TYPE type);
00058 
00065         CScatterSVM(float64_t C, CKernel* k, CLabels* lab);
00066 
00068         virtual ~CScatterSVM();
00069 
00078         virtual bool train(CFeatures* data=NULL);
00079 
00084         virtual inline EClassifierType get_classifier_type() { return CT_SCATTERSVM; }
00085 
00091         virtual float64_t classify_example(int32_t num);
00092 
00097         virtual CLabels* classify_one_vs_rest();
00098 
00100         inline virtual const char* get_name() const { return "ScatterSVM"; }
00101 
00102     private:
00103         void compute_norm_wc();
00104         virtual bool train_no_bias_libsvm();
00105 
00106         virtual bool train_testrule12();
00107 
00108     protected:
00110         SCATTER_TYPE scatter_type;
00111 
00113         svm_problem problem;
00115         svm_parameter param;
00116 
00118         struct svm_model* model;
00119 
00121         float64_t* norm_wc;
00122 
00124         float64_t* norm_wcw;
00125 
00127         float64_t rho;
00128 
00130         int32_t m_num_classes;
00131 };
00132 }
00133 #endif // ScatterSVM

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