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Simple refactoring of BLEU scorer.

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This commit is contained in:
Tetsuo Kiso 2011-11-12 10:21:08 +09:00
parent 43beb88df5
commit d776281b8b
2 changed files with 15 additions and 17 deletions
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9
mert/BleuScorer.cpp
View File

@ -195,3 +195,12 @@ float BleuScorer::calculateScore(const vector<int>& comps)
//cerr << " " << exp(logbleu) << endl;
return exp(logbleu);
}
void BleuScorer::dump_counts(counts_t& counts) {
for (counts_it i = counts.begin(); i != counts.end(); ++i) {
cerr << "(";
copy(i->first.begin(), i->first.end(), ostream_iterator<int>(cerr," "));
cerr << ") " << i->second << ", ";
}
cerr << endl;
}

23
mert/BleuScorer.h
View File

@ -34,22 +34,15 @@ public:
virtual void prepareStats(size_t sid, const string& text, ScoreStats& entry);
size_t NumberOfScores() {
// cerr << "BleuScorer: " << (2 * LENGTH + 1) << endl;
return (2 * kLENGTH + 1);
}
//protected:
float calculateScore(const vector<int>& comps);
private:
// no copying allowed
BleuScorer(const BleuScorer&);
BleuScorer& operator=(const BleuScorer&);
//Used to construct the ngram map
struct CompareNgrams {
int operator() (const vector<int>& a, const vector<int>& b) {
int operator()(const vector<int>& a, const vector<int>& b) {
size_t i;
size_t as = a.size();
size_t bs = b.size();
@ -70,7 +63,6 @@ private:
typedef map<vector<int>,int,CompareNgrams> counts_t;
typedef map<vector<int>,int,CompareNgrams>::iterator counts_it;
typedef ScopedVector<counts_t> refcounts_t;
/**
@ -78,14 +70,7 @@ private:
*/
size_t countNgrams(const string& line, counts_t& counts, unsigned int n);
void dump_counts(counts_t& counts) {
for (counts_it i = counts.begin(); i != counts.end(); ++i) {
cerr << "(";
copy(i->first.begin(), i->first.end(), ostream_iterator<int>(cerr," "));
cerr << ") " << i->second << ", ";
}
cerr << endl;
}
void dump_counts(counts_t& counts);
const int kLENGTH;
BleuReferenceLengthStrategy _refLengthStrategy;
@ -93,6 +78,10 @@ private:
// data extracted from reference files
refcounts_t _refcounts;
vector<vector<size_t> > _reflengths;
// no copying allowed
BleuScorer(const BleuScorer&);
BleuScorer& operator=(const BleuScorer&);
};
#endif // __BLEUSCORER_H__