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-rw-r--r--extractor/features/count_source_target.cc17
1 files changed, 17 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..db0385e0
--- /dev/null
+++ b/extractor/features/count_source_target.cc
@@ -0,0 +1,17 @@
+#include "count_source_target.h"
+
+#include <cmath>
+
+namespace extractor {
+namespace features {
+
+double CountSourceTarget::Score(const FeatureContext& context) const {
+ return log10(1 + context.pair_count);
+}
+
+string CountSourceTarget::GetName() const {
+ return "CountEF";
+}
+
+} // namespace features
+} // namespace extractor