From 58be95f557d2f6a006cc98a23de98125e6b83a32 Mon Sep 17 00:00:00 2001
From: Patrick Simianer <p@simianer.de>
Date: Mon, 13 Jan 2014 18:30:58 +0100
Subject: remove duplicate word alignment features

---
 decoder/cdec_ff.cc                         |  1 -
 decoder/ff_rules.cc                        | 22 ----------------------
 decoder/ff_rules.h                         | 13 -------------
 training/dtrain/examples/standard/cdec.ini |  1 -
 4 files changed, 37 deletions(-)

diff --git a/decoder/cdec_ff.cc b/decoder/cdec_ff.cc
index 80b42d22..8689a615 100644
--- a/decoder/cdec_ff.cc
+++ b/decoder/cdec_ff.cc
@@ -47,7 +47,6 @@ void register_feature_functions() {
   ff_registry.Register("NgramFeatures", new FFFactory<NgramDetector>());
   ff_registry.Register("RuleContextFeatures", new FFFactory<RuleContextFeatures>());
   ff_registry.Register("RuleIdentityFeatures", new FFFactory<RuleIdentityFeatures>());
-  ff_registry.Register("RuleWordAlignmentFeatures", new FFFactory<RuleWordAlignmentFeatures>());
   ff_registry.Register("ParseMatchFeatures", new FFFactory<ParseMatchFeatures>);
   ff_registry.Register("SoftSyntaxFeatures", new FFFactory<SoftSyntaxFeatures>);
   ff_registry.Register("SoftSyntaxFeaturesMindist", new FFFactory<SoftSyntaxFeaturesMindist>);
diff --git a/decoder/ff_rules.cc b/decoder/ff_rules.cc
index 7bccf084..9533caed 100644
--- a/decoder/ff_rules.cc
+++ b/decoder/ff_rules.cc
@@ -69,28 +69,6 @@ void RuleIdentityFeatures::TraversalFeaturesImpl(const SentenceMetadata& smeta,
   features->add_value(it->second, 1);
 }
 
-RuleWordAlignmentFeatures::RuleWordAlignmentFeatures(const std::string& param) {
-}
-
-void RuleWordAlignmentFeatures::PrepareForInput(const SentenceMetadata& smeta) {
-}
-
-void RuleWordAlignmentFeatures::TraversalFeaturesImpl(const SentenceMetadata& smeta,
-                                         const Hypergraph::Edge& edge,
-                                         const vector<const void*>& ant_contexts,
-                                         SparseVector<double>* features,
-                                         SparseVector<double>* estimated_features,
-                                         void* context) const {
-  const TRule& rule = *edge.rule_;
-  ostringstream os;
-  vector<AlignmentPoint> als = rule.als(); 
-  std::vector<AlignmentPoint>::const_iterator xx = als.begin();
-  for (; xx != als.end(); ++xx) {
-    os << "WA:" <<  TD::Convert(rule.f_[xx->s_]) << ":" << TD::Convert(rule.e_[xx->t_]);
-  }
-  features->add_value(FD::Convert(Escape(os.str())), 1);
-}
-
 RuleSourceBigramFeatures::RuleSourceBigramFeatures(const std::string& param) {
 }
 
diff --git a/decoder/ff_rules.h b/decoder/ff_rules.h
index 324d7a39..f210dc65 100644
--- a/decoder/ff_rules.h
+++ b/decoder/ff_rules.h
@@ -24,19 +24,6 @@ class RuleIdentityFeatures : public FeatureFunction {
   mutable std::map<const TRule*, int> rule2_fid_;
 };
 
-class RuleWordAlignmentFeatures : public FeatureFunction {
- public:
-  RuleWordAlignmentFeatures(const std::string& param);
- protected:
-  virtual void TraversalFeaturesImpl(const SentenceMetadata& smeta,
-                                     const HG::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);
-};
-
 class RuleSourceBigramFeatures : public FeatureFunction {
  public:
   RuleSourceBigramFeatures(const std::string& param);
diff --git a/training/dtrain/examples/standard/cdec.ini b/training/dtrain/examples/standard/cdec.ini
index 044ae2f5..3330dd71 100644
--- a/training/dtrain/examples/standard/cdec.ini
+++ b/training/dtrain/examples/standard/cdec.ini
@@ -21,7 +21,6 @@ feature_function=RuleIdentityFeatures
 feature_function=RuleSourceBigramFeatures
 feature_function=RuleTargetBigramFeatures
 feature_function=RuleShape
-#feature_function=RuleWordAlignmentFeatures
 feature_function=LexicalFeatures 1 1 1
 #feature_function=SourceSpanSizeFeatures
 #feature_function=SourceWordPenalty
-- 
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