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ddf7bc3e23
2. FeatureFunction::ChangeSource should not be allow to change the pointer to the source.
97 lines
2.6 KiB
C++
97 lines
2.6 KiB
C++
#include <vector>
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#include "SkeletonChangeInput.h"
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#include "moses/ScoreComponentCollection.h"
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#include "moses/TargetPhrase.h"
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#include "moses/Sentence.h"
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#include "moses/FactorCollection.h"
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#include "util/exception.hh"
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using namespace std;
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namespace Moses
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{
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SkeletonChangeInput::SkeletonChangeInput(const std::string &line)
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:StatelessFeatureFunction(2, line)
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{
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ReadParameters();
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}
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void SkeletonChangeInput::EvaluateInIsolation(const Phrase &source
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, const TargetPhrase &targetPhrase
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, ScoreComponentCollection &scoreBreakdown
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, ScoreComponentCollection &estimatedFutureScore) const
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{
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// dense scores
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vector<float> newScores(m_numScoreComponents);
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newScores[0] = 1.5;
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newScores[1] = 0.3;
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scoreBreakdown.PlusEquals(this, newScores);
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// sparse scores
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scoreBreakdown.PlusEquals(this, "sparse-name", 2.4);
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}
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void SkeletonChangeInput::EvaluateWithSourceContext(const InputType &input
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, const InputPath &inputPath
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, const TargetPhrase &targetPhrase
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, const StackVec *stackVec
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, ScoreComponentCollection &scoreBreakdown
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, ScoreComponentCollection *estimatedFutureScore) const
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{
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if (targetPhrase.GetNumNonTerminals()) {
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vector<float> newScores(m_numScoreComponents);
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newScores[0] = - std::numeric_limits<float>::infinity();
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scoreBreakdown.PlusEquals(this, newScores);
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}
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}
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void SkeletonChangeInput::EvaluateTranslationOptionListWithSourceContext(const InputType &input
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, const TranslationOptionList &translationOptionList) const
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{}
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void SkeletonChangeInput::EvaluateWhenApplied(const Hypothesis& hypo,
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ScoreComponentCollection* accumulator) const
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{}
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void SkeletonChangeInput::EvaluateWhenApplied(const ChartHypothesis &hypo,
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ScoreComponentCollection* accumulator) const
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{}
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void SkeletonChangeInput::ChangeSource(InputType* const& input) const
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{
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// add factor[1] to each word. Created from first 4 letter of factor[0]
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Sentence *sentence = dynamic_cast<Sentence*>(input);
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UTIL_THROW_IF2(sentence == NULL, "Not a sentence input");
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FactorCollection &fc = FactorCollection::Instance();
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size_t size = sentence->GetSize();
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for (size_t i = 0; i < size; ++i) {
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Word &word = sentence->Phrase::GetWord(i);
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const Factor *factor0 = word[0];
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std::string str = factor0->GetString().as_string();
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if (str.length() > 4) {
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str = str.substr(0, 4);
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}
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const Factor *factor1 = fc.AddFactor(str);
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word.SetFactor(1, factor1);
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}
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}
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void SkeletonChangeInput::SetParameter(const std::string& key, const std::string& value)
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{
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if (key == "arg") {
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// set value here
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} else {
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StatelessFeatureFunction::SetParameter(key, value);
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}
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}
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}
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