merge paul's extractor code

1 files changed, 41 insertions, 0 deletions

diff --git a/extractor/scorer.h b/extractor/scorer.h
new file mode 100644
index 00000000..af8a3b10
--- /dev/null
+++ b/extractor/scorer.h
@@ -0,0 +1,41 @@
+#ifndef _SCORER_H_
+#define _SCORER_H_
+
+#include <memory>
+#include <string>
+#include <vector>
+
+using namespace std;
+
+namespace extractor {
+
+namespace features {
+  class Feature;
+  class FeatureContext;
+} // namespace features
+
+/**
+ * Computes the feature scores for a source-target phrase pair.
+ */
+class Scorer {
+ public:
+  Scorer(const vector<shared_ptr<features::Feature> >& features);
+
+  virtual ~Scorer();
+
+  // Computes the feature score for the given context.
+  virtual vector<double> Score(const features::FeatureContext& context) const;
+
+  // Returns the set of feature names used to score any context.
+  virtual vector<string> GetFeatureNames() const;
+
+ protected:
+  Scorer();
+
+ private:
+  vector<shared_ptr<features::Feature> > features;
+};
+
+} // namespace extractor
+
+#endif