mirror of
https://github.com/moses-smt/mosesdecoder.git
synced 2024-12-27 05:55:02 +03:00
115 lines
3.4 KiB
C++
115 lines
3.4 KiB
C++
/***********************************************************************
|
|
Moses - statistical machine translation system
|
|
Copyright (C) 2006-2012 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 "moses/NonTerminal.h"
|
|
#include "moses/TargetPhrase.h"
|
|
#include "moses/TargetPhraseCollection.h"
|
|
#include "moses/Util.h"
|
|
#include "moses/Word.h"
|
|
#include "UTrieNode.h"
|
|
#include "Trie.h"
|
|
#include "moses/TranslationModel/PhraseDictionaryNodeMemory.h" // For TerminalHasher and TerminalEqualityPred
|
|
|
|
#include <boost/functional/hash.hpp>
|
|
#include <boost/unordered_map.hpp>
|
|
#include <boost/version.hpp>
|
|
|
|
#include <map>
|
|
#include <vector>
|
|
|
|
namespace Moses
|
|
{
|
|
|
|
void UTrieNode::Prune(size_t tableLimit)
|
|
{
|
|
// Recusively prune child node values.
|
|
for (TerminalMap::iterator p = m_terminalMap.begin();
|
|
p != m_terminalMap.end(); ++p) {
|
|
p->second.Prune(tableLimit);
|
|
}
|
|
if (m_gapNode) {
|
|
m_gapNode->Prune(tableLimit);
|
|
}
|
|
|
|
// Prune TargetPhraseCollections at this node.
|
|
for (LabelMap::iterator p = m_labelMap.begin(); p != m_labelMap.end(); ++p) {
|
|
p->second.Prune(true, tableLimit);
|
|
}
|
|
}
|
|
|
|
void UTrieNode::Sort(size_t tableLimit)
|
|
{
|
|
// Recusively sort child node values.
|
|
for (TerminalMap::iterator p = m_terminalMap.begin();
|
|
p != m_terminalMap.end(); ++p) {
|
|
p->second.Sort(tableLimit);
|
|
}
|
|
if (m_gapNode) {
|
|
m_gapNode->Sort(tableLimit);
|
|
}
|
|
|
|
// Sort TargetPhraseCollections at this node.
|
|
for (LabelMap::iterator p = m_labelMap.begin(); p != m_labelMap.end(); ++p) {
|
|
p->second.Sort(true, tableLimit);
|
|
}
|
|
}
|
|
|
|
UTrieNode *UTrieNode::GetOrCreateTerminalChild(const Word &sourceTerm)
|
|
{
|
|
assert(!sourceTerm.IsNonTerminal());
|
|
std::pair<TerminalMap::iterator, bool> result;
|
|
result = m_terminalMap.insert(std::make_pair(sourceTerm, UTrieNode()));
|
|
const TerminalMap::iterator &iter = result.first;
|
|
UTrieNode &child = iter->second;
|
|
return &child;
|
|
}
|
|
|
|
UTrieNode *UTrieNode::GetOrCreateNonTerminalChild(const Word &targetNonTerm)
|
|
{
|
|
assert(targetNonTerm.IsNonTerminal());
|
|
if (m_gapNode == NULL) {
|
|
m_gapNode = new UTrieNode();
|
|
}
|
|
return m_gapNode;
|
|
}
|
|
|
|
TargetPhraseCollection &UTrieNode::GetOrCreateTargetPhraseCollection(
|
|
const TargetPhrase &target)
|
|
{
|
|
const AlignmentInfo &alignmentInfo = target.GetAlignNonTerm();
|
|
const size_t rank = alignmentInfo.GetSize();
|
|
|
|
std::vector<int> vec;
|
|
vec.reserve(rank);
|
|
|
|
m_labelTable.resize(rank);
|
|
|
|
int i = 0;
|
|
for (AlignmentInfo::const_iterator p = alignmentInfo.begin();
|
|
p != alignmentInfo.end(); ++p) {
|
|
size_t targetNonTermIndex = p->second;
|
|
const Word &targetNonTerm = target.GetWord(targetNonTermIndex);
|
|
vec.push_back(InsertLabel(i++, targetNonTerm));
|
|
}
|
|
|
|
return m_labelMap[vec];
|
|
}
|
|
|
|
} // namespace Moses
|