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110 lines
2.7 KiB
C++
110 lines
2.7 KiB
C++
/*
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* Hypothesis.cpp
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*
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* Created on: 24 Oct 2015
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* Author: hieu
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*/
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#include <stdlib.h>
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#include "Hypothesis.h"
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#include "Manager.h"
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#include "System.h"
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#include "Scores.h"
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Hypothesis::Hypothesis(Manager &mgr,
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const TargetPhrase &tp,
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const Moses::Range &range,
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const Moses::Bitmap &bitmap)
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:m_mgr(mgr)
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,m_targetPhrase(tp)
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,m_sourceCompleted(bitmap)
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,m_range(range)
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,m_prevHypo(NULL)
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{
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MemPool &pool = m_mgr.GetPool();
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size_t numStatefulFFs = m_mgr.GetSystem().GetFeatureFunctions().GetStatefulFeatureFunctions().size();
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m_ffStates = (Moses::FFState **) pool.Allocate(sizeof(Moses::FFState*) * numStatefulFFs);
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m_scores = new (pool.Allocate<Scores>()) Scores(pool, m_mgr.GetSystem().GetFeatureFunctions().GetNumScores());
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}
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Hypothesis::Hypothesis(const Hypothesis &prevHypo,
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const TargetPhrase &tp,
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const Moses::Range &pathRange,
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const Moses::Bitmap &bitmap)
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:m_mgr(prevHypo.m_mgr)
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,m_targetPhrase(tp)
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,m_sourceCompleted(bitmap)
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,m_range(pathRange)
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,m_prevHypo(&prevHypo)
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{
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MemPool &pool = m_mgr.GetPool();
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size_t numStatefulFFs = m_mgr.GetSystem().GetFeatureFunctions().GetStatefulFeatureFunctions().size();
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m_ffStates = (Moses::FFState **) pool.Allocate(sizeof(Moses::FFState*) * numStatefulFFs);
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m_scores = new (pool.Allocate<Scores>()) Scores(pool, m_mgr.GetSystem().GetFeatureFunctions().GetNumScores(), prevHypo.GetScores());
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m_scores->PlusEquals(m_targetPhrase.GetScores(), m_mgr.GetSystem());
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}
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Hypothesis::~Hypothesis() {
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// TODO Auto-generated destructor stub
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}
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size_t Hypothesis::hash() const
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{
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size_t numStatefulFFs = m_mgr.GetSystem().GetFeatureFunctions().GetStatefulFeatureFunctions().size();
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size_t seed;
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// coverage
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seed = m_sourceCompleted.hash();
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seed = rand();
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// states
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for (size_t i = 0; i < numStatefulFFs; ++i) {
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const Moses::FFState *state = m_ffStates[i];
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size_t hash = state->hash();
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boost::hash_combine(seed, hash);
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}
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return seed;
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}
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bool Hypothesis::operator==(const Hypothesis &other) const
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{
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size_t numStatefulFFs = m_mgr.GetSystem().GetFeatureFunctions().GetStatefulFeatureFunctions().size();
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// coverage
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if (m_sourceCompleted != other.m_sourceCompleted) {
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return false;
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}
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// states
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for (size_t i = 0; i < numStatefulFFs; ++i) {
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const Moses::FFState &thisState = *m_ffStates[i];
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const Moses::FFState &otherState = *other.m_ffStates[i];
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if (thisState != otherState) {
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return false;
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}
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}
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return true;
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}
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void Hypothesis::OutputToStream(std::ostream &out) const
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{
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if (m_prevHypo) {
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m_prevHypo->OutputToStream(out);
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}
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if (m_targetPhrase.GetSize()) {
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out << (const Phrase&) m_targetPhrase;
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out << " ";
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}
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}
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std::ostream& operator<<(std::ostream &out, const Hypothesis &obj)
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{
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return out;
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}
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