summaryrefslogtreecommitdiff
path: root/decoder/ff_bleu.h
blob: e93731c32ac20af6018e4dd0ccf3a44a3038df63 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
#ifndef _BLEU_FF_H_
#define _BLEU_FF_H_

#include <vector>
#include <string>

#include "hg.h"
#include "ff.h"
#include "config.h"

class BLEUModelImpl;

class BLEUModel : public FeatureFunction {
 public:
  // param = "filename.lm [-o n]"
  BLEUModel(const std::string& param);
  ~BLEUModel();
  virtual void FinalTraversalFeatures(const void* context,
                                      SparseVector<double>* features) const;
  std::string DebugStateToString(const void* state) const;
  static std::string usage(bool param,bool verbose);
 protected:
  virtual void TraversalFeaturesImpl(const SentenceMetadata& smeta,
                                     const Hypergraph::Edge& edge,
                                     const std::vector<const void*>& ant_contexts,
                                     SparseVector<double>* features,
                                     SparseVector<double>* estimated_features,
                                     void* out_context) const;
 private:
  const int fid_;
  mutable BLEUModelImpl* pimpl_;
};
#endif