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This commit is contained in:
Ales Tamchyna 2016-03-10 14:01:47 +01:00
parent d972d50b79
commit 3e5c0e8667
1 changed files with 10 additions and 3 deletions
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13
moses/FF/VW/VW.h
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@ -242,8 +242,6 @@ public:
Discriminative::Classifier &classifier = *m_tlsClassifier->GetStored();
// XXX this is a naive implementation, fix this!
// extract target context features
const Phrase &targetContext = static_cast<const VWState *>(prevState)->m_phrase;
size_t contextHash = hash_value(targetContext);
@ -259,9 +257,11 @@ public:
(*contextFeatures[i])(targetContext, classifier, contextVector);
contextFeaturesCache[contextHash] = contextVector;
VERBOSE(3, "VW :: context cache miss\n");
} else {
// context already in cache, simply put feature IDs in the classifier object
classifier.AddLabelIndependentFeatureVector(contextIt->second);
VERBOSE(3, "VW :: context cache hit\n");
}
std::vector<float> losses(topts->size());
@ -275,7 +275,7 @@ public:
losses[toptIdx] = m_tlsFutureScores->GetStored()->find(toptHash)->second;
// add all features associated with this translation option
// (pre-compted when evaluated with source context)
// (pre-computed when evaluated with source context)
const Discriminative::FeatureVector &targetFeatureVector =
m_tlsTranslationOptionFeatures->GetStored()->find(toptHash)->second;
@ -570,6 +570,13 @@ public:
// invalidate our caches after each sentence
m_tlsComputedStateExtensions->GetStored()->clear();
// it's not certain that we should clear these caches; we do it
// because they shouldn't be allowed to grow indefinitely large but
// target contexts and translation options will have identical features
// the next time we extract them...
m_tlsTargetContextFeatures->GetStored()->clear();
m_tlsTranslationOptionFeatures->GetStored()->clear();
// pre-compute max- and min- aligned points for faster translation option checking
targetSent.SetConstraints(source.GetSize());
}