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TwoStateModel.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) 2012 Fernando José Iglesias García
8  * Copyright (C) 2012 Fernando José Iglesias García
9  */
10 
11 #ifndef __TWO_STATE_MODEL_H__
12 #define __TWO_STATE_MODEL_H__
13 
16 
17 namespace shogun
18 {
19 
25 {
26  public:
29 
31  virtual ~CTwoStateModel();
32 
43  virtual SGMatrix< float64_t > loss_matrix(CSequence* label_seq);
44 
54  virtual float64_t loss(CSequence* label_seq_lhs, CSequence* label_seq_rhs);
55 
67  virtual void reshape_emission_params(SGVector< float64_t >& emission_weights,
68  SGVector< float64_t > w, int32_t num_feats, int32_t num_obs);
69 
78  virtual void reshape_transmission_params(
79  SGMatrix< float64_t >& transmission_weights,
81 
88  virtual SGVector< int32_t > labels_to_states(CSequence* label_seq) const;
89 
96  virtual CSequence* states_to_labels(SGVector< int32_t > state_seq) const;
97 
111  virtual void weights_to_vector(SGVector< float64_t >& psi,
112  SGMatrix< float64_t > transmission_weights,
113  SGVector< float64_t > emission_weights,
114  int32_t num_feats, int32_t num_obs) const;
115 
128  virtual SGVector< int32_t > get_monotonicity(int32_t num_free_states,
129  int32_t num_feats) const;
130 
138 
140  virtual const char* get_name() const { return "TwoStateModel"; }
141 };
142 
143 } /* namespace shogun */
144 
145 #endif /* __TWO_STATE_MODEL_H__ */

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