mirror of
https://github.com/moses-smt/mosesdecoder.git
synced 2024-09-11 19:27:11 +03:00
58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
#include "InternalStructFeature.h"
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#include <map>
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using namespace std;
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namespace MosesTraining
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{
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void InternalStructFeature::add(const ScoreFeatureContext& context,
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std::vector<float>& denseValues,
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std::map<std::string,float>& sparseValues) const
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{
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const std::map<std::string,float> *allTrees = context.phrasePair.GetProperty("Tree"); // our would we rather want to take the most frequent one only?
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for ( std::map<std::string,float>::const_iterator iter=allTrees->begin();
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iter!=allTrees->end(); ++iter ) {
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add(&(iter->first), iter->second, denseValues, sparseValues);
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}
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}
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void InternalStructFeatureDense::add(const std::string *treeFragment,
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float count,
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std::vector<float>& denseValues,
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std::map<std::string,float>& sparseValues) const
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{
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//cout<<"Dense: "<<*internalStruct<<endl;
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size_t start=0;
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int countNP=0;
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while((start = treeFragment->find("NP", start)) != string::npos) {
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countNP += count;
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start+=2; //length of "NP"
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}
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//should add e^countNP so in the decoder I get log(e^countNP)=countNP -> but is log or ln?
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//should use this but don't know what it does? -> maybeLog( (bitmap == i) ? 2.718 : 1 )
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denseValues.push_back(exp(countNP));
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}
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void InternalStructFeatureSparse::add(const std::string *treeFragment,
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float count,
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std::vector<float>& denseValues,
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std::map<std::string,float>& sparseValues) const
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{
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//cout<<"Sparse: "<<*internalStruct<<endl;
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if(treeFragment->find("VBZ")!=std::string::npos)
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sparseValues["NTVBZ"] += count;
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if(treeFragment->find("VBD")!=std::string::npos)
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sparseValues["NTVBD"] += count;
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if(treeFragment->find("VBP")!=std::string::npos)
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sparseValues["NTVBP"] += count;
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if(treeFragment->find("PP")!=std::string::npos)
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sparseValues["NTPP"] += count;
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if(treeFragment->find("SBAR")!=std::string::npos)
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sparseValues["NTSBAR"] += count;
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}
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}
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