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authorMatthias Huck <huck@i6.informatik.rwth-aachen.de>2014-01-29 22:37:42 +0400
committerMatthias Huck <huck@i6.informatik.rwth-aachen.de>2014-01-29 22:37:42 +0400
commit86ee3e15a441aec72eaebdd0389fa925da2316c7 (patch)
tree6de24e964968820fb708a2e37a935c40a2a1494e /phrase-extract/ExtractionPhrasePair.h
parentffd62e994ecb88358b5f3aa835f84d441ec58c77 (diff)
new version of the `score` tool
which is now capable of dealing with additional properties in an appropriate manner
Diffstat (limited to 'phrase-extract/ExtractionPhrasePair.h')
-rw-r--r--phrase-extract/ExtractionPhrasePair.h162
1 files changed, 162 insertions, 0 deletions
diff --git a/phrase-extract/ExtractionPhrasePair.h b/phrase-extract/ExtractionPhrasePair.h
new file mode 100644
index 000000000..f04984391
--- /dev/null
+++ b/phrase-extract/ExtractionPhrasePair.h
@@ -0,0 +1,162 @@
+/***********************************************************************
+ Moses - factored phrase-based language decoder
+ Copyright (C) 2009 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
+ ***********************************************************************/
+
+#pragma once
+#include "tables-core.h"
+
+#include <vector>
+#include <set>
+#include <map>
+
+namespace MosesTraining {
+
+
+typedef std::vector< std::set<size_t> > ALIGNMENT;
+
+
+class ExtractionPhrasePair {
+
+protected:
+
+ typedef std::map<std::string,float> PROPERTY_VALUES;
+ typedef std::map<std::string,float>::iterator LAST_PROPERTY_VALUE;
+
+
+ bool m_isValid;
+
+ const PHRASE *m_phraseSource;
+ const PHRASE *m_phraseTarget;
+
+ float m_count;
+ float m_pcfgSum;
+
+ std::map<ALIGNMENT*,float> m_targetToSourceAlignments;
+ std::map<std::string,
+ std::pair< PROPERTY_VALUES*, LAST_PROPERTY_VALUE* > > m_properties;
+
+ float m_lastCount;
+ float m_lastPcfgSum;
+ std::map<ALIGNMENT*,float>::iterator m_lastTargetToSourceAlignment;
+
+public:
+
+ ExtractionPhrasePair( const PHRASE *phraseSource,
+ const PHRASE *phraseTarget,
+ ALIGNMENT *targetToSourceAlignment,
+ float count, float pcfgSum );
+
+ ~ExtractionPhrasePair();
+
+ bool Add( ALIGNMENT *targetToSourceAlignment,
+ float count, float pcfgSum );
+
+ void IncrementPrevious( float count, float pcfgSum );
+
+ bool Matches( const PHRASE *otherPhraseSource,
+ const PHRASE *otherPhraseTarget,
+ ALIGNMENT *otherTargetToSourceAlignment ) const;
+
+ bool Matches( const PHRASE *otherPhraseSource,
+ const PHRASE *otherPhraseTarget,
+ ALIGNMENT *otherTargetToSourceAlignment,
+ bool &sourceMatch,
+ bool &targetMatch,
+ bool &alignmentMatch ) const;
+
+ bool MatchesAlignment( ALIGNMENT *otherTargetToSourceAlignment ) const;
+
+ void Clear();
+
+ bool IsValid() const {
+ return m_isValid;
+ }
+
+
+ const PHRASE *GetSource() const {
+ return m_phraseSource;
+ }
+
+ const PHRASE *GetTarget() const {
+ return m_phraseTarget;
+ }
+
+ float GetCount() const {
+ return m_count;
+ }
+
+ float GetPcfgScore() const {
+ return m_pcfgSum;
+ }
+
+ const size_t GetNumberOfProperties() const {
+ return m_properties.size();
+ }
+
+ const std::map<std::string,float> *GetProperty( const std::string &key ) const {
+ std::map<std::string, std::pair< PROPERTY_VALUES*, LAST_PROPERTY_VALUE* > >::const_iterator iter;
+ iter = m_properties.find(key);
+ if (iter == m_properties.end()) {
+ return NULL;
+ } else {
+ return iter->second.first;
+ }
+ }
+
+ const ALIGNMENT *FindBestAlignmentTargetToSource() const;
+
+ const std::string *FindBestPropertyValue(const std::string &key) const;
+
+ std::string CollectAllPropertyValues(const std::string &key) const;
+
+ void AddProperties( const std::string &str, float count );
+
+ void AddProperty( const std::string &key, const std::string &value, float count )
+ {
+ std::map<std::string,
+ std::pair< PROPERTY_VALUES*, LAST_PROPERTY_VALUE* > >::iterator iter = m_properties.find(key);
+ if ( iter == m_properties.end() ) {
+ // key not found: insert property key and value
+ PROPERTY_VALUES *propertyValues = new PROPERTY_VALUES();
+ std::pair<LAST_PROPERTY_VALUE,bool> insertedProperty = propertyValues->insert( std::pair<std::string,float>(value,count) );
+ LAST_PROPERTY_VALUE *lastPropertyValue = new LAST_PROPERTY_VALUE(insertedProperty.first);
+ m_properties[key] = std::pair< PROPERTY_VALUES*, LAST_PROPERTY_VALUE* >(propertyValues, lastPropertyValue);
+ } else {
+ LAST_PROPERTY_VALUE *lastPropertyValue = (iter->second).second;
+ if ( (*lastPropertyValue)->first == value ) { // same property key-value pair has been seen right before
+ // property key-value pair exists already: add count
+ (*lastPropertyValue)->second += count;
+ } else { // need to check whether the property key-value pair has appeared before (insert if not)
+ // property key exists, but not in combination with this value:
+ // add new value with count
+ PROPERTY_VALUES *propertyValues = (iter->second).first;
+ std::pair<LAST_PROPERTY_VALUE,bool> insertedProperty = propertyValues->insert( std::pair<std::string,float>(value,count) );
+ if ( !insertedProperty.second ) { // property value for this key appeared before: add count
+ insertedProperty.first->second += count;
+ }
+ LAST_PROPERTY_VALUE *lastPropertyValue = new LAST_PROPERTY_VALUE(insertedProperty.first);
+ delete (iter->second).second;
+ (iter->second).second = lastPropertyValue;
+ }
+ }
+ }
+
+};
+
+}
+