moses-smt/mosesdecoder
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prefix subphrase optimization for confusion networks

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This commit is contained in:
Hieu Hoang 2013-07-10 18:02:38 +01:00
parent 958d7ca9b8
commit 3c343b7cc5
1 changed files with 15 additions and 9 deletions
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24
moses/TranslationOptionCollectionConfusionNet.cpp
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@ -57,20 +57,27 @@ TranslationOptionCollectionConfusionNet::TranslationOptionCollectionConfusionNet
WordsRange range(startPos, endPos);
vector<InputPathList> &vec = m_targetPhrasesfromPt[startPos];
vec.push_back(InputPathList());
InputPathList &list = vec.back();
// loop thru every previous path
const InputPathList &prevNodes = GetInputPathList(startPos, endPos - 1);
InputPathList::const_iterator iter;
for (iter = prevNodes.begin(); iter != prevNodes.end(); ++iter) {
const InputPath &prevNode = **iter;
int prevNodesInd = 0;
InputPathList::const_iterator iterPath;
for (iterPath = prevNodes.begin(); iterPath != prevNodes.end(); ++iterPath) {
//for (size_t pathInd = 0; pathInd < prevNodes.size(); ++pathInd) {
const InputPath &prevNode = **iterPath;
//const InputPath &prevNode = *prevNodes[pathInd];
const Phrase &prevPhrase = prevNode.GetPhrase();
const ScoreComponentCollection *prevInputScore = prevNode.GetInputScore();
CHECK(prevInputScore);
// loop thru every word at this position
const ConfusionNet::Column &col = input.GetColumn(startPos);
const ConfusionNet::Column &col = input.GetColumn(endPos);
for (size_t i = 0; i < col.size(); ++i) {
const Word &word = col[i].first;
Phrase subphrase(prevPhrase);
@ -80,17 +87,16 @@ TranslationOptionCollectionConfusionNet::TranslationOptionCollectionConfusionNet
ScoreComponentCollection *inputScore = new ScoreComponentCollection(*prevInputScore);
inputScore->PlusEquals(inputFeature, scores);
InputPath *node = new InputPath(subphrase, range, NULL, inputScore);
InputPath *node = new InputPath(subphrase, range, &prevNode, inputScore);
list.push_back(node);
m_phraseDictionaryQueue.push_back(node);
}
} // for (size_t i = 0; i < col.size(); ++i) {
}
++prevNodesInd;
} // for (iterPath = prevNodes.begin(); iterPath != prevNodes.end(); ++iterPath) {
}
}
}
InputPathList &TranslationOptionCollectionConfusionNet::GetInputPathList(size_t startPos, size_t endPos)