merge Lexi Birch's LRScore from mert_mtm5 branch

1 files changed, 64 insertions, 0 deletions

diff --git a/mert/PermutationScorer.h b/mert/PermutationScorer.h
new file mode 100644
index 000000000..20e2ad927
--- /dev/null
+++ b/mert/PermutationScorer.h
@@ -0,0 +1,64 @@
+#ifndef __PERMUTATIONSCORER_H__
+#define __PERMUTATIONSCORER_H__
+
+#include <algorithm>
+#include <cmath>
+#include <iostream>
+#include <iterator>
+#include <set>
+#include <sstream>
+#include <stdexcept>
+#include <string>
+#include <vector>
+#include <limits.h>
+#include "Types.h"
+#include "ScoreData.h"
+#include "Scorer.h"
+#include "Permutation.h"
+#include "SentenceLevelScorer.h"
+
+/**
+  * Permutation
+ **/
+class PermutationScorer: public SentenceLevelScorer
+{
+
+public:
+  PermutationScorer(const std::string &distanceMetric = "HAMMING",
+                    const std::string &config = std::string());
+  void setReferenceFiles(const std::vector<std::string>& referenceFiles);
+  void prepareStats(size_t sid, const std::string& text, ScoreStats& entry);
+  static const int SCORE_PRECISION;
+
+  size_t NumberOfScores() const {
+    //cerr << "PermutationScorer number of scores: 1" << endl;
+    return 1;
+  };
+  bool useAlignment() const {
+    //cout << "PermutationScorer::useAlignment returning true" << endl;
+    return true;
+  };
+
+protected:
+  statscore_t calculateScore(const std::vector<statscore_t>& scores);
+  PermutationScorer(const PermutationScorer&);
+  ~PermutationScorer() {};
+  PermutationScorer& operator=(const PermutationScorer&);
+  int getNumberWords (const std::string & line) const;
+
+  distanceMetricReferenceChoice_t m_refChoiceStrategy;
+  distanceMetric_t m_distanceMetric;
+
+  // data extracted from reference files
+  // A vector of permutations for each reference file
+  std::vector< std::vector<Permutation> > m_referencePerms;
+  std::vector<size_t> m_sourceLengths;
+  std::vector<std::string> m_referenceAlignments;
+
+private:
+};
+//TODO need to read in floats for scores - necessary for selecting mean reference strategy and for BLEU?
+
+
+#endif //__PERMUTATIONSCORER_H
+