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Diffstat (limited to 'contrib/moses2/AlignmentInfo.h')
-rw-r--r-- | contrib/moses2/AlignmentInfo.h | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/contrib/moses2/AlignmentInfo.h b/contrib/moses2/AlignmentInfo.h deleted file mode 100644 index 89b31a1fc..000000000 --- a/contrib/moses2/AlignmentInfo.h +++ /dev/null @@ -1,148 +0,0 @@ -/*********************************************************************** - Moses - statistical machine translation system - Copyright (C) 2006-2011 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 <iostream> -#include <ostream> -#include <set> -#include <vector> -#include <cstdlib> - -#include <boost/functional/hash.hpp> -#include "TypeDef.h" - -namespace Moses2 -{ - -class AlignmentInfoCollection; -class System; - -/** Collection of non-terminal alignment pairs, ordered by source index. - * Usually held by a TargetPhrase to map non-terms in hierarchical/syntax models - */ -class AlignmentInfo -{ - friend struct AlignmentInfoOrderer; - friend struct AlignmentInfoHasher; - friend class AlignmentInfoCollection; - friend class VW; - - friend std::ostream& operator<<(std::ostream& out, const AlignmentInfo& obj); - -public: - typedef std::set<std::pair<size_t,size_t> > CollType; - typedef std::vector<size_t> NonTermIndexMap; - typedef CollType::const_iterator const_iterator; - - const_iterator begin() const { - return m_collection.begin(); - } - const_iterator end() const { - return m_collection.end(); - } - - void Add(size_t sourcePos, size_t targetPos) { - m_collection.insert(std::pair<size_t, size_t>(sourcePos, targetPos)); - } - /** Provides a map from target-side to source-side non-terminal indices. - * The target-side index should be the rule symbol index (COUNTING terminals). - * The index returned is the rule non-terminal index (IGNORING terminals). - */ - const NonTermIndexMap &GetNonTermIndexMap() const { - return m_nonTermIndexMap; - } - - /** Like GetNonTermIndexMap but the return value is the symbol index (i.e. - * the index counting both terminals and non-terminals) */ - const NonTermIndexMap &GetNonTermIndexMap2() const { - return m_nonTermIndexMap2; - } - - const CollType &GetAlignments() const { - return m_collection; - } - - std::set<size_t> GetAlignmentsForSource(size_t sourcePos) const; - std::set<size_t> GetAlignmentsForTarget(size_t targetPos) const; - - size_t GetSize() const { - return m_collection.size(); - } - - std::vector< const std::pair<size_t,size_t>* > - GetSortedAlignments(Moses2::WordAlignmentSort SortOrder) const; - - std::vector<size_t> GetSourceIndex2PosMap() const; - - bool operator==(const AlignmentInfo& rhs) const { - return m_collection == rhs.m_collection && - m_nonTermIndexMap == rhs.m_nonTermIndexMap; - } - - std::string Debug(const System &system) const; - -private: - //! AlignmentInfo objects should only be created by an AlignmentInfoCollection - explicit AlignmentInfo(const std::set<std::pair<size_t,size_t> > &pairs); - explicit AlignmentInfo(const std::vector<unsigned char> &aln); - - // used only by VW to load word alignment between sentences - explicit AlignmentInfo(const std::string &str); - - void BuildNonTermIndexMaps(); - - CollType m_collection; - NonTermIndexMap m_nonTermIndexMap; - NonTermIndexMap m_nonTermIndexMap2; -}; - -/** Define an arbitrary strict weak ordering between AlignmentInfo objects - * for use by AlignmentInfoCollection. - */ -struct AlignmentInfoOrderer { - bool operator()(const AlignmentInfo &a, const AlignmentInfo &b) const { - if (a.m_collection == b.m_collection) { - return a.m_nonTermIndexMap < b.m_nonTermIndexMap; - } else { - return a.m_collection < b.m_collection; - } - } -}; - -/** - * Hashing functoid - **/ -struct AlignmentInfoHasher { - size_t operator()(const AlignmentInfo& a) const { - size_t seed = 0; - boost::hash_combine(seed,a.m_collection); - boost::hash_combine(seed,a.m_nonTermIndexMap); - return seed; - } - -}; - -inline size_t hash_value(const AlignmentInfo& a) -{ - static AlignmentInfoHasher hasher; - return hasher(a); -} - -} |