blob: c28b75e1de5b93214d1216f0ddc1765704f51327 (
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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
// $Id$
#ifndef PHRASEDICTIONARYTREE_H_
#define PHRASEDICTIONARYTREE_H_
#include <string>
#include <vector>
#include <iostream>
#include "TypeDef.h"
#include "Dictionary.h"
class Phrase;
class Word;
class ConfusionNet;
typedef std::pair<std::vector<std::string const*>,std::vector<float> > StringTgtCand;
class PDTimp;
class PPimp;
class PhraseDictionaryTree : public Dictionary {
PDTimp *imp; //implementation
public:
PhraseDictionaryTree(size_t noScoreComponent);
virtual ~PhraseDictionaryTree();
DecodeType GetDecodeType() const {return Translate;}
size_t GetSize() const {return 0;}
// convert from ascii phrase table format
// note: only creates table, does not keep it in memory
// -> use Read(outFileNamePrefix);
int Create(std::istream& in,const std::string& outFileNamePrefix);
int Read(const std::string& fileNamePrefix);
// free memory used by the prefix tree etc.
void FreeMemory() const;
/**************************************
* access with full source phrase *
**************************************/
// print target candidates for a given phrase, mainly for debugging
void PrintTargetCandidates(const std::vector<std::string>& src,
std::ostream& out) const;
// get the target candidates for a given phrase
void GetTargetCandidates(const std::vector<std::string>& src,
std::vector<StringTgtCand>& rv) const;
/*****************************
* access to prefix tree *
*****************************/
// 'pointer' into prefix tree
// the only permitted direct operation is a check for NULL,
// e.g. PrefixPtr p; if(p) ...
// other usage only through PhraseDictionaryTree-functions below
class PrefixPtr {
PPimp* imp;
friend class PDTimp;
public:
PrefixPtr(PPimp* x=0) : imp(x) {}
operator bool() const;
};
// return pointer to root node
PrefixPtr GetRoot() const;
// extend pointer with a word/Factorstring and return the resulting successor
// pointer. If there is no such successor node, the result will evaluate to
// false. Requirement: the input pointer p evaluates to true.
PrefixPtr Extend(PrefixPtr p,const std::string& s) const;
// get the target candidates for a given prefix pointer
// requirement: the pointer has to evaluate to true
void GetTargetCandidates(PrefixPtr p,
std::vector<StringTgtCand>& rv) const;
// print target candidates for a given prefix pointer to a stream, mainly
// for debugging
void PrintTargetCandidates(PrefixPtr p,std::ostream& out) const;
const std::string GetScoreProducerDescription() const;
};
#endif /*PHRASEDICTIONARYTREE_H_*/
|
