unsigned
CIMIContext::getBestSentence(CCandidates& result, int rank,
unsigned start, unsigned end)
{
// -1 means selected sentence
if (rank < -1 || rank >= (int) m_nBest)
return 0;
result.clear();
if (end == UINT_MAX)
end = m_tailIdx - 1;
while (end > start && m_lattice[end].m_bwType == CLatticeFrame::NO_BESTWORD)
end--;
unsigned i = end, nWordConverted = 0;
while (i > start) {
CLatticeFrame& fr = m_lattice[i];
if (rank < 0) {
result.insert(result.begin(), fr.m_selWord);
i = fr.m_selWord.m_start;
} else {
result.insert(result.begin(), fr.m_bestWords[rank]);
i = fr.m_bestWords[rank].m_start;
}
nWordConverted++;
}
return nWordConverted;
}
std::vector<CCandidates>
CIMIContext::getBestSentenceTails(int rank, unsigned start, unsigned end)
{
std::vector<CCandidates> result;
if (rank < 0) {
return result;
}
CCandidates sentence;
unsigned word_num = getBestSentence(sentence, rank, start, end);
unsigned tail_word_num = word_num;
while (tail_word_num > 1) {
unsigned dec = tail_word_num / (m_maxTailCandidateNum + 1) + 1;
tail_word_num -= std::min(dec, tail_word_num);
if (tail_word_num <= 1) {
break;
}
CCandidates tail(sentence.begin(), sentence.begin() + tail_word_num);
result.push_back(tail);
}
return result;
}