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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
// $Id$
/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (C) 2006 University of Edinburgh
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
***********************************************************************/
#include <limits>
#include <iostream>
#include <sstream>
#include "SingleFactor.h"
#include "PointerState.h"
#include "moses/FF/FFState.h"
#include "moses/TypeDef.h"
#include "moses/Util.h"
#include "moses/FactorCollection.h"
#include "moses/Phrase.h"
#include "moses/StaticData.h"
#include "moses/FactorTypeSet.h"
using namespace std;
namespace Moses
{
LanguageModelSingleFactor::LanguageModelSingleFactor(const std::string &line)
:LanguageModelImplementation(line)
,m_factorType(0)
{
m_nullContextState = new PointerState(NULL);
m_beginSentenceState = new PointerState(NULL);
}
LanguageModelSingleFactor::~LanguageModelSingleFactor()
{
delete m_nullContextState;
delete m_beginSentenceState;
}
const FFState *LanguageModelSingleFactor::GetNullContextState() const
{
return m_nullContextState;
}
const FFState *LanguageModelSingleFactor::GetBeginSentenceState() const
{
return m_beginSentenceState;
}
FFState *LanguageModelSingleFactor::NewState(const FFState *from) const
{
return new PointerState(from ? static_cast<const PointerState*>(from)->lmstate : NULL);
}
LMResult LanguageModelSingleFactor::GetValueForgotState(const std::vector<const Word*> &contextFactor, FFState &outState) const
{
return GetValue(contextFactor, &static_cast<PointerState&>(outState).lmstate);
}
bool LanguageModelSingleFactor::IsUseable(const FactorMask &mask) const
{
bool ret = mask[m_factorType];
return ret;
}
void LanguageModelSingleFactor::SetParameter(const std::string& key, const std::string& value)
{
if (key == "factor") {
m_factorType = Scan<FactorType>(value);
} else {
LanguageModelImplementation::SetParameter(key, value);
}
}
std::string LanguageModelSingleFactor::DebugContextFactor(const std::vector<const Word*> &contextFactor) const
{
std::string ret;
for (size_t i = 0; i < contextFactor.size(); ++i) {
const Word &word = *contextFactor[i];
ret += word.ToString();
}
return ret;
}
}
|
