mirror of
https://github.com/moses-smt/mosesdecoder.git
synced 2024-12-24 20:32:59 +03:00
45630a5851
speed-up of decoding depends on how much time is spent in parser: 10-50% speed-up for string-to-tree systems observed (more on long sentences and with high max-chart-span). if you only use hiero or string-to-tree models (but none with source syntax), use compile-option --unlabelled-source for (small) efficiency gains.
134 lines
4.3 KiB
C++
134 lines
4.3 KiB
C++
// $Id$
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/***********************************************************************
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Moses - factored phrase-based language decoder
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Copyright (C) 2006 University of Edinburgh
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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***********************************************************************/
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#include "PhraseDictionaryNodeMemory.h"
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#include "moses/TargetPhrase.h"
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#include "moses/TranslationModel/PhraseDictionary.h"
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using namespace std;
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namespace Moses
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{
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void PhraseDictionaryNodeMemory::Prune(size_t tableLimit)
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{
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// recusively prune
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for (TerminalMap::iterator p = m_sourceTermMap.begin(); p != m_sourceTermMap.end(); ++p) {
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p->second.Prune(tableLimit);
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}
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for (NonTerminalMap::iterator p = m_nonTermMap.begin(); p != m_nonTermMap.end(); ++p) {
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p->second.Prune(tableLimit);
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}
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// prune TargetPhraseCollection in this node
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m_targetPhraseCollection.Prune(true, tableLimit);
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}
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void PhraseDictionaryNodeMemory::Sort(size_t tableLimit)
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{
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// recusively sort
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for (TerminalMap::iterator p = m_sourceTermMap.begin(); p != m_sourceTermMap.end(); ++p) {
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p->second.Sort(tableLimit);
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}
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for (NonTerminalMap::iterator p = m_nonTermMap.begin(); p != m_nonTermMap.end(); ++p) {
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p->second.Sort(tableLimit);
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}
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// prune TargetPhraseCollection in this node
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m_targetPhraseCollection.Sort(true, tableLimit);
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}
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PhraseDictionaryNodeMemory *PhraseDictionaryNodeMemory::GetOrCreateChild(const Word &sourceTerm)
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{
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return &m_sourceTermMap[sourceTerm];
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}
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#if defined(UNLABELLED_SOURCE)
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PhraseDictionaryNodeMemory *PhraseDictionaryNodeMemory::GetOrCreateNonTerminalChild(const Word &targetNonTerm)
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{
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UTIL_THROW_IF2(!targetNonTerm.IsNonTerminal(),
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"Not a non-terminal: " << targetNonTerm);
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return &m_nonTermMap[targetNonTerm];
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}
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#else
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PhraseDictionaryNodeMemory *PhraseDictionaryNodeMemory::GetOrCreateChild(const Word &sourceNonTerm, const Word &targetNonTerm)
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{
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UTIL_THROW_IF2(!sourceNonTerm.IsNonTerminal(),
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"Not a non-terminal: " << sourceNonTerm);
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UTIL_THROW_IF2(!targetNonTerm.IsNonTerminal(),
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"Not a non-terminal: " << targetNonTerm);
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NonTerminalMapKey key(sourceNonTerm, targetNonTerm);
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return &m_nonTermMap[NonTerminalMapKey(sourceNonTerm, targetNonTerm)];
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}
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#endif
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const PhraseDictionaryNodeMemory *PhraseDictionaryNodeMemory::GetChild(const Word &sourceTerm) const
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{
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UTIL_THROW_IF2(sourceTerm.IsNonTerminal(),
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"Not a terminal: " << sourceTerm);
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TerminalMap::const_iterator p = m_sourceTermMap.find(sourceTerm);
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return (p == m_sourceTermMap.end()) ? NULL : &p->second;
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}
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#if defined(UNLABELLED_SOURCE)
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const PhraseDictionaryNodeMemory *PhraseDictionaryNodeMemory::GetNonTerminalChild(const Word &targetNonTerm) const
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{
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UTIL_THROW_IF2(!targetNonTerm.IsNonTerminal(),
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"Not a non-terminal: " << targetNonTerm);
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NonTerminalMap::const_iterator p = m_nonTermMap.find(targetNonTerm);
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return (p == m_nonTermMap.end()) ? NULL : &p->second;
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}
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#else
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const PhraseDictionaryNodeMemory *PhraseDictionaryNodeMemory::GetChild(const Word &sourceNonTerm, const Word &targetNonTerm) const
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{
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UTIL_THROW_IF2(!sourceNonTerm.IsNonTerminal(),
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"Not a non-terminal: " << sourceNonTerm);
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UTIL_THROW_IF2(!targetNonTerm.IsNonTerminal(),
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"Not a non-terminal: " << targetNonTerm);
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NonTerminalMapKey key(sourceNonTerm, targetNonTerm);
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NonTerminalMap::const_iterator p = m_nonTermMap.find(key);
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return (p == m_nonTermMap.end()) ? NULL : &p->second;
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}
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#endif
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void PhraseDictionaryNodeMemory::Remove()
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{
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m_sourceTermMap.clear();
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m_nonTermMap.clear();
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m_targetPhraseCollection.Remove();
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}
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std::ostream& operator<<(std::ostream &out, const PhraseDictionaryNodeMemory &node)
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{
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out << node.GetTargetPhraseCollection();
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return out;
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}
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TO_STRING_BODY(PhraseDictionaryNodeMemory)
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}
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