本文整理汇总了C++中Hypothesis::GetSize方法的典型用法代码示例。如果您正苦于以下问题：C++ Hypothesis::GetSize方法的具体用法？C++ Hypothesis::GetSize怎么用？C++ Hypothesis::GetSize使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Hypothesis的用法示例。
在下文中一共展示了Hypothesis::GetSize方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Evaluate
void GlobalLexicalModelUnlimited::Evaluate(const Hypothesis& cur_hypo, ScoreComponentCollection* accumulator) const
{
const Sentence& input = *(m_local->input);
const TargetPhrase& targetPhrase = cur_hypo.GetCurrTargetPhrase();
for(size_t targetIndex = 0; targetIndex < targetPhrase.GetSize(); targetIndex++ ) {
StringPiece targetString = targetPhrase.GetWord(targetIndex).GetString(0); // TODO: change for other factors
if (m_ignorePunctuation) {
// check if first char is punctuation
char firstChar = targetString[0];
CharHash::const_iterator charIterator = m_punctuationHash.find( firstChar );
if(charIterator != m_punctuationHash.end())
continue;
}
if (m_biasFeature) {
stringstream feature;
feature << "glm_";
feature << targetString;
feature << "~";
feature << "**BIAS**";
accumulator->SparsePlusEquals(feature.str(), 1);
}
boost::unordered_set<uint64_t> alreadyScored;
for(size_t sourceIndex = 0; sourceIndex < input.GetSize(); sourceIndex++ ) {
const StringPiece sourceString = input.GetWord(sourceIndex).GetString(0);
// TODO: change for other factors
if (m_ignorePunctuation) {
// check if first char is punctuation
char firstChar = sourceString[0];
CharHash::const_iterator charIterator = m_punctuationHash.find( firstChar );
if(charIterator != m_punctuationHash.end())
continue;
}
const uint64_t sourceHash = util::MurmurHashNative(sourceString.data(), sourceString.size());
if ( alreadyScored.find(sourceHash) == alreadyScored.end()) {
bool sourceExists, targetExists;
if (!m_unrestricted) {
sourceExists = FindStringPiece(m_vocabSource, sourceString ) != m_vocabSource.end();
targetExists = FindStringPiece(m_vocabTarget, targetString) != m_vocabTarget.end();
}
// no feature if vocab is in use and both words are not in restricted vocabularies
if (m_unrestricted || (sourceExists && targetExists)) {
if (m_sourceContext) {
if (sourceIndex == 0) {
// add <s> trigger feature for source
stringstream feature;
feature << "glm_";
feature << targetString;
feature << "~";
feature << "<s>,";
feature << sourceString;
accumulator->SparsePlusEquals(feature.str(), 1);
alreadyScored.insert(sourceHash);
}
// add source words to the right of current source word as context
for(int contextIndex = sourceIndex+1; contextIndex < input.GetSize(); contextIndex++ ) {
StringPiece contextString = input.GetWord(contextIndex).GetString(0); // TODO: change for other factors
bool contextExists;
if (!m_unrestricted)
contextExists = FindStringPiece(m_vocabSource, contextString ) != m_vocabSource.end();
if (m_unrestricted || contextExists) {
stringstream feature;
feature << "glm_";
feature << targetString;
feature << "~";
feature << sourceString;
feature << ",";
feature << contextString;
accumulator->SparsePlusEquals(feature.str(), 1);
alreadyScored.insert(sourceHash);
}
}
} else if (m_biphrase) {
// --> look backwards for constructing context
int globalTargetIndex = cur_hypo.GetSize() - targetPhrase.GetSize() + targetIndex;
// 1) source-target pair, trigger source word (can be discont.) and adjacent target word (bigram)
StringPiece targetContext;
if (globalTargetIndex > 0)
targetContext = cur_hypo.GetWord(globalTargetIndex-1).GetString(0); // TODO: change for other factors
else
targetContext = "<s>";
if (sourceIndex == 0) {
StringPiece sourceTrigger = "<s>";
AddFeature(accumulator, sourceTrigger, sourceString,
targetContext, targetString);
} else
for(int contextIndex = sourceIndex-1; contextIndex >= 0; contextIndex-- ) {
StringPiece sourceTrigger = input.GetWord(contextIndex).GetString(0); // TODO: change for other factors
bool sourceTriggerExists = false;
if (!m_unrestricted)
//.........这里部分代码省略.........
示例2: Evaluate
size_t LM::Evaluate(
const Hypothesis& hypo,
size_t prevState,
Scores &scores) const
{
if (m_order <= 1) {
return 0; // not sure if returning NULL is correct
}
if (hypo.targetPhrase.GetSize() == 0) {
return 0; // not sure if returning NULL is correct
}
PhraseVec m_phraseVec(m_order);
const size_t currEndPos = hypo.targetRange.endPos;
const size_t startPos = hypo.targetRange.startPos;
size_t index = 0;
for (int currPos = (int) startPos - (int) m_order + 1 ; currPos <= (int) startPos ; currPos++) {
if (currPos >= 0)
m_phraseVec[index++] = &hypo.GetWord(currPos);
else {
m_phraseVec[index++] = &m_bos;
}
}
SCORE lmScore = GetValueCache(m_phraseVec);
// main loop
size_t endPos = std::min(startPos + m_order - 2
, currEndPos);
for (size_t currPos = startPos + 1 ; currPos <= endPos ; currPos++) {
// shift all args down 1 place
for (size_t i = 0 ; i < m_order - 1 ; i++)
m_phraseVec[i] = m_phraseVec[i + 1];
// add last factor
m_phraseVec.back() = &hypo.GetWord(currPos);
lmScore += GetValueCache(m_phraseVec);
}
// end of sentence
if (hypo.GetCoverage().IsComplete()) {
const size_t size = hypo.GetSize();
m_phraseVec.back() = &m_eos;
for (size_t i = 0 ; i < m_order - 1 ; i ++) {
int currPos = (int)(size - m_order + i + 1);
if (currPos < 0)
m_phraseVec[i] = &m_bos;
else
m_phraseVec[i] = &hypo.GetWord((size_t)currPos);
}
lmScore += GetValueCache(m_phraseVec);
} else {
if (endPos < currEndPos) {
//need to get the LM state (otherwise the last LM state is fine)
for (size_t currPos = endPos+1; currPos <= currEndPos; currPos++) {
for (size_t i = 0 ; i < m_order - 1 ; i++)
m_phraseVec[i] = m_phraseVec[i + 1];
m_phraseVec.back() = &hypo.GetWord(currPos);
}
}
}
size_t state = GetLastState();
return state;
}