1 files changed, 11 insertions, 0 deletions
diff --git a/extractor/features/count_source_target.cc b/extractor/features/count_source_target.cc
new file mode 100644
index 00000000..9441b451
--- /dev/null
+++ b/extractor/features/count_source_target.cc
@@ -0,0 +1,11 @@
+#include "count_source_target.h"
+
+#include <cmath>
+
+double CountSourceTarget::Score(const FeatureContext& context) const {
+  return log10(1 + context.pair_count);
+}
+
+string CountSourceTarget::GetName() const {
+  return "CountEF";
+}