From d9f77a14d4e217dc8984871802bbccc66a2c9864 Mon Sep 17 00:00:00 2001
From: Chris Dyer <cdyer@Chriss-MacBook-Air.local>
Date: Sat, 16 Feb 2013 03:18:42 -0500
Subject: new metric

---
 mteval/ns_ssk.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 mteval/ns_ssk.h

(limited to 'mteval/ns_ssk.h')

diff --git a/mteval/ns_ssk.h b/mteval/ns_ssk.h
new file mode 100644
index 00000000..0d418770
--- /dev/null
+++ b/mteval/ns_ssk.h
@@ -0,0 +1,22 @@
+#ifndef _NS_SSK_H_
+#define _NS_SSK_H_
+
+#include "ns.h"
+
+class SSKMetric : public EvaluationMetric {
+  friend class EvaluationMetric;
+ private:
+  unsigned EditDistance(const std::string& hyp,
+                        const std::string& ref) const;
+ protected:
+  SSKMetric() : EvaluationMetric("SSK") {}
+
+ public:
+  virtual unsigned SufficientStatisticsVectorSize() const;
+  virtual void ComputeSufficientStatistics(const std::vector<WordID>& hyp,
+                                           const std::vector<std::vector<WordID> >& refs,
+                                           SufficientStats* out) const;
+  virtual float ComputeScore(const SufficientStats& stats) const;
+};
+
+#endif
-- 
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