1 files changed, 32 insertions, 0 deletions
diff --git a/extractor/features/feature.h b/extractor/features/feature.h
new file mode 100644
index 00000000..ad22d3e7
--- /dev/null
+++ b/extractor/features/feature.h
@@ -0,0 +1,32 @@
+#ifndef _FEATURE_H_
+#define _FEATURE_H_
+
+#include <string>
+
+//TODO(pauldb): include headers nicely.
+#include "../phrase.h"
+
+using namespace std;
+
+struct FeatureContext {
+  FeatureContext(const Phrase& source_phrase, const Phrase& target_phrase,
+                 double sample_source_count, int pair_count) :
+    source_phrase(source_phrase), target_phrase(target_phrase),
+    sample_source_count(sample_source_count), pair_count(pair_count) {}
+
+  Phrase source_phrase;
+  Phrase target_phrase;
+  double sample_source_count;
+  int pair_count;
+};
+
+class Feature {
+ public:
+  virtual double Score(const FeatureContext& context) const = 0;
+
+  virtual string GetName() const = 0;
+
+  static const double MAX_SCORE;
+};
+
+#endif