source syntax features ~ blunsom emnlp 2008

1 files changed, 24 insertions, 0 deletions

diff --git a/decoder/ff_source_syntax.h b/decoder/ff_source_syntax.h
new file mode 100644
index 00000000..1e890736
--- /dev/null
+++ b/decoder/ff_source_syntax.h
@@ -0,0 +1,24 @@
+#ifndef _FF_SOURCE_TOOLS_H_
+#define _FF_SOURCE_TOOLS_H_
+
+#include "ff.h"
+
+struct SourceSyntaxFeaturesImpl;
+
+class SourceSyntaxFeatures : public FeatureFunction {
+ public:
+  SourceSyntaxFeatures(const std::string& param);
+  ~SourceSyntaxFeatures();
+ 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* context) const;
+  virtual void PrepareForInput(const SentenceMetadata& smeta);
+ private:
+  SourceSyntaxFeaturesImpl* impl;
+};
+
+#endif