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HMSVMModel.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) 2012 Fernando Jose Iglesias Garcia
00008  * Copyright (C) 2012 Fernando Jose Iglesias Garcia
00009  */
00010 
00011 #ifndef _HMSVM_MODEL__H__
00012 #define _HMSVM_MODEL__H__
00013 
00014 #include <shogun/structure/StructuredModel.h>
00015 #include <shogun/structure/SequenceLabels.h>
00016 #include <shogun/structure/StateModelTypes.h>
00017 #include <shogun/structure/StateModel.h>
00018 
00019 namespace shogun
00020 {
00021 
00022 enum EStateModelType;
00023 
00029 class CHMSVMModel : public CStructuredModel
00030 {
00031     public:
00033         CHMSVMModel();
00034 
00043         CHMSVMModel(CFeatures* features, CStructuredLabels* labels, EStateModelType smt, int32_t num_obs=0, bool use_plifs=false);
00044 
00046         virtual ~CHMSVMModel();
00047 
00052         virtual int32_t get_dim() const;
00053 
00066         virtual SGVector< float64_t > get_joint_feature_vector(int32_t feat_idx, CStructuredData* y);
00067 
00081         virtual CResultSet* argmax(SGVector< float64_t > w, int32_t feat_idx, bool const training = true);
00082 
00090         virtual float64_t delta_loss(CStructuredData* y1, CStructuredData* y2);
00091 
00104         virtual void init_primal_opt(
00105                 float64_t regularization,
00106                 SGMatrix< float64_t > & A,  SGVector< float64_t > a,
00107                 SGMatrix< float64_t > B,  SGVector< float64_t > & b,
00108                 SGVector< float64_t > lb, SGVector< float64_t > ub,
00109                 SGMatrix < float64_t > & C);
00110 
00115         virtual bool check_training_setup() const;
00116 
00125         virtual int32_t get_num_aux() const;
00126 
00134         virtual int32_t get_num_aux_con() const;
00135 
00140         void set_use_plifs(bool use_plifs);
00141 
00147         virtual void init_training();
00148 
00153         SGMatrix< float64_t > get_transmission_weights() const;
00154 
00159         SGVector< float64_t > get_emission_weights() const;
00160 
00165         CStateModel* get_state_model() const;
00166 
00171         virtual const char* get_name() const { return "HMSVMModel"; }
00172 
00173     private:
00174         /* internal initialization */
00175         void init();
00176 
00177     private:
00179         int32_t m_num_obs;
00180 
00182         int32_t m_num_aux;
00183 
00185         CStateModel* m_state_model;
00186 
00188         SGMatrix< float64_t > m_transmission_weights;
00189 
00191         SGVector< float64_t > m_emission_weights;
00192 
00194         int32_t m_num_plif_nodes;
00195 
00197         CDynamicObjectArray* m_plif_matrix;
00198 
00200         bool m_use_plifs;
00201 
00202 }; /* class CHMSVMModel */
00203 
00204 } /* namespace shogun */
00205 
00206 #endif /* _HMSVM_MODEL__H__ */
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