From af2c5cf391b1dee5660cb69ef2c238ddb7fd4085 Mon Sep 17 00:00:00 2001
From: Chris Dyer <cdyer@cs.cmu.edu>
Date: Thu, 3 Mar 2011 21:41:40 -0500
Subject: more options for augment grammar

---
 training/augment_grammar.cc | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/training/augment_grammar.cc b/training/augment_grammar.cc
index 48ef23fc..f1b1b355 100644
--- a/training/augment_grammar.cc
+++ b/training/augment_grammar.cc
@@ -4,6 +4,7 @@
 #include <boost/program_options.hpp>
 #include <boost/program_options/variables_map.hpp>
 
+#include "weights.h"
 #include "rule_lexer.h"
 #include "trule.h"
 #include "filelib.h"
@@ -33,6 +34,7 @@ bool InitCommandLine(int argc, char** argv, po::variables_map* conf) {
   po::options_description opts("Configuration options");
   opts.add_options()
         ("source_lm,l",po::value<string>(),"Source language LM (KLM)")
+        ("collapse_weights,w",po::value<string>(), "Collapse weights into a single feature X using the coefficients from this weights file")
         ("add_shape_types,s", "Add rule shape types");
   po::options_description clo("Command line options");
   clo.add_options()
@@ -78,8 +80,22 @@ template <class Model> float Score(const vector<WordID>& str, const Model &model
   return total;
 }
 
+int kSrcLM;
+vector<double> col_weights;
+
 static void RuleHelper(const TRulePtr& new_rule, const unsigned int ctf_level, const TRulePtr& coarse_rule, void* extra) {
-  cout << *new_rule << " SrcLM=" << Score(new_rule->f_, *ngram) << endl;
+  static const int kSrcLM = FD::Convert("SrcLM");
+  static const int kPC = FD::Convert("PC");
+  static const int kX = FD::Convert("X");
+  TRule r(*new_rule);
+  if (ngram) r.scores_.set_value(kSrcLM, Score(r.f_, *ngram));
+  r.scores_.set_value(kPC, 1.0);
+  if (col_weights.size()) {
+    double score = r.scores_.dot(col_weights);
+    r.scores_.clear();
+    r.scores_.set_value(kX, score);
+  }
+  cout << r << endl;
 }
 
 
@@ -95,7 +111,11 @@ int main(int argc, char** argv) {
     cerr << "Loaded " << (int)ngram->Order() << "-gram KenLM (MapSize=" << word_map.size() << ")\n";
     cerr << "  <s> = " << kSOS << endl;
   } else { ngram = NULL; }
-  assert(ngram);
+  if (conf.count("collapse_weights")) {
+    Weights w;
+    w.InitFromFile(conf["collapse_weights"].as<string>());
+    w.InitVector(&col_weights);
+  }
   RuleLexer::ReadRules(&cin, &RuleHelper, NULL);
   return 0;
 }
-- 
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