From 2a18010e255810cc2b5bcbe688f3db8eabda23ca Mon Sep 17 00:00:00 2001
From: Chris Dyer <redpony@gmail.com>
Date: Sun, 6 Dec 2009 22:25:25 -0500
Subject: add compound splitting logic and features (Dyer 2008, NAACL)

---
 src/ff_csplit.h | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 src/ff_csplit.h

(limited to 'src/ff_csplit.h')

diff --git a/src/ff_csplit.h b/src/ff_csplit.h
new file mode 100644
index 00000000..c1cfb64b
--- /dev/null
+++ b/src/ff_csplit.h
@@ -0,0 +1,39 @@
+#ifndef _FF_CSPLIT_H_
+#define _FF_CSPLIT_H_
+
+#include <boost/shared_ptr.hpp>
+
+#include "ff.h"
+
+class BasicCSplitFeaturesImpl;
+class BasicCSplitFeatures : public FeatureFunction {
+ public:
+  BasicCSplitFeatures(const std::string& param);
+ protected:
+  virtual void TraversalFeaturesImpl(const SentenceMetadata& smeta,
+                                     const Hypergraph::Edge& edge,
+                                     const std::vector<const void*>& ant_contexts,
+                                     SparseVector<double>* features,
+                                     SparseVector<double>* estimated_features,
+                                     void* out_context) const;
+ private:
+  boost::shared_ptr<BasicCSplitFeaturesImpl> pimpl_;
+};
+
+class ReverseCharLMCSplitFeatureImpl;
+class ReverseCharLMCSplitFeature : public FeatureFunction {
+ public:
+  ReverseCharLMCSplitFeature(const std::string& param);
+ protected:
+  virtual void TraversalFeaturesImpl(const SentenceMetadata& smeta,
+                                     const Hypergraph::Edge& edge,
+                                     const std::vector<const void*>& ant_contexts,
+                                     SparseVector<double>* features,
+                                     SparseVector<double>* estimated_features,
+                                     void* out_context) const;
+ private:
+  boost::shared_ptr<ReverseCharLMCSplitFeatureImpl> pimpl_;
+  const int fid_;
+};
+
+#endif
-- 
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