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119 lines
2.6 KiB
C++
119 lines
2.6 KiB
C++
/*
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* Data.h
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* met - Minimum Error Training
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*
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* Created by Nicola Bertoldi on 13/05/08.
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*
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*/
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#ifndef DATA_H
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#define DATA_H
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using namespace std;
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#include <limits>
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#include <vector>
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#include <iostream>
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#include "Util.h"
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#include "FeatureData.h"
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#include "ScoreData.h"
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class Scorer;
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class Data
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{
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private:
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Scorer* theScorer;
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std::string score_type;
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size_t number_of_scores;
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bool _sparse_flag;
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protected:
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// TODO: Use smart pointers for exceptional-safety.
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ScoreData* scoredata;
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FeatureData* featdata;
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public:
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explicit Data(Scorer& sc);
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Data();
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~Data();
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inline void clear() {
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scoredata->clear();
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featdata->clear();
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}
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ScoreData* getScoreData() {
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return scoredata;
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}
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FeatureData* getFeatureData() {
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return featdata;
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}
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Scorer* getScorer() {
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return theScorer;
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}
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inline size_t NumberOfFeatures() const {
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return featdata->NumberOfFeatures();
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}
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inline void NumberOfFeatures(size_t v) {
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featdata->NumberOfFeatures(v);
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}
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inline std::string Features() const {
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return featdata->Features();
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}
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inline void Features(const std::string &f) {
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featdata->Features(f);
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}
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inline bool hasSparseFeatures() const { return _sparse_flag; }
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void mergeSparseFeatures();
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void loadnbest(const std::string &file);
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void load(const std::string &featfile,const std::string &scorefile) {
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featdata->load(featfile);
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scoredata->load(scorefile);
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if (featdata->hasSparseFeatures())
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_sparse_flag = true;
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}
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void save(const std::string &featfile,const std::string &scorefile, bool bin=false) {
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if (bin) cerr << "Binary write mode is selected" << endl;
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else cerr << "Binary write mode is NOT selected" << endl;
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featdata->save(featfile, bin);
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scoredata->save(scorefile, bin);
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}
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inline bool existsFeatureNames() const {
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return featdata->existsFeatureNames();
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}
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inline std::string getFeatureName(size_t idx) const {
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return featdata->getFeatureName(idx);
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}
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inline size_t getFeatureIndex(const std::string& name) const {
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return featdata->getFeatureIndex(name);
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}
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void sampleRankedPairs( const std::string &rankedPairFile );
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void outputSample( std::ostream &out, const FeatureStats &f1, const FeatureStats &f2 );
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/**
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* Create shard_count shards. If shard_size == 0, then the shards are non-overlapping
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* and exhaust the data. If 0 < shard_size <= 1, then shards are chosen by sampling
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* the data (with replacement) and shard_size is interpreted as the proportion
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* of the total size.
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*/
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void createShards(size_t shard_count, float shard_size, const std::string& scorerconfig,
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std::vector<Data>& shards);
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};
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#endif // DATA_H
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