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authorChris Dyer <redpony@gmail.com>2009-12-03 16:49:30 -0500
committerChris Dyer <redpony@gmail.com>2009-12-03 16:49:30 -0500
commit9fae7b75c64f4dfb6e45ff8f2ec61b597f37d225 (patch)
tree61a187c4fa6db8527f90f3060d18357f7b60b44a /vest/scorer.h
parent671c21451542e2dd20e45b4033d44d8e8735f87b (diff)
fix build in new layout
Diffstat (limited to 'vest/scorer.h')
-rw-r--r--vest/scorer.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/vest/scorer.h b/vest/scorer.h
new file mode 100644
index 00000000..b0bba640
--- /dev/null
+++ b/vest/scorer.h
@@ -0,0 +1,51 @@
+#ifndef SCORER_H_
+#define SCORER_H_
+
+#include <vector>
+#include <string>
+
+#include "wordid.h"
+
+class ViterbiEnvelope;
+class ErrorSurface;
+
+enum ScoreType { IBM_BLEU, NIST_BLEU, Koehn_BLEU, TER, BLEU_minus_TER_over_2, SER };
+ScoreType ScoreTypeFromString(const std::string& st);
+
+class Score {
+ public:
+ virtual ~Score();
+ virtual float ComputeScore() const = 0;
+ virtual void ScoreDetails(std::string* details) const = 0;
+ virtual void PlusEquals(const Score& rhs) = 0;
+ virtual void Subtract(const Score& rhs, Score* res) const = 0;
+ virtual Score* GetZero() const = 0;
+ virtual bool IsAdditiveIdentity() const = 0; // returns true if adding this delta
+ // to another score results in no score change
+ // under any circumstances
+ virtual void Encode(std::string* out) const = 0;
+};
+
+class SentenceScorer {
+ public:
+ virtual ~SentenceScorer();
+ void ComputeErrorSurface(const ViterbiEnvelope& ve, ErrorSurface* es) const;
+ virtual Score* ScoreCandidate(const std::vector<WordID>& hyp) const = 0;
+ static Score* CreateScoreFromString(const ScoreType type, const std::string& in);
+ static SentenceScorer* CreateSentenceScorer(const ScoreType type,
+ const std::vector<std::vector<WordID> >& refs);
+};
+
+class DocScorer {
+ public:
+ ~DocScorer();
+ DocScorer(
+ const ScoreType type,
+ const std::vector<std::string>& ref_files);
+ int size() const { return scorers_.size(); }
+ const SentenceScorer* operator[](size_t i) const { return scorers_[i]; }
+ private:
+ std::vector<SentenceScorer*> scorers_;
+};
+
+#endif