From 8b26fcd27aae78bf17d356e2677a9e7e62e7d1b2 Mon Sep 17 00:00:00 2001
From: graehl <graehl@ec762483-ff6d-05da-a07a-a48fb63a330f>
Date: Fri, 16 Jul 2010 01:57:08 +0000
Subject: oracle refactor, oracle vest directions, sparse_vector

git-svn-id: https://ws10smt.googlecode.com/svn/trunk@280 ec762483-ff6d-05da-a07a-a48fb63a330f
---
 vest/mr_vest_generate_mapper_input.cc | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

(limited to 'vest/mr_vest_generate_mapper_input.cc')

diff --git a/vest/mr_vest_generate_mapper_input.cc b/vest/mr_vest_generate_mapper_input.cc
index cbda78c5..01e93f61 100644
--- a/vest/mr_vest_generate_mapper_input.cc
+++ b/vest/mr_vest_generate_mapper_input.cc
@@ -62,6 +62,7 @@ struct oracle_directions {
 
   bool start_random;
   bool include_primary;
+  bool old_to_hope;
   bool fear_to_hope;
   unsigned n_random;
   void AddPrimaryAndRandomDirections() {
@@ -87,14 +88,15 @@ struct oracle_directions {
       ("forest_repository,r",po::value<string>(&forest_repository),"[REQD] Path to forest repository")
       ("weights,w",po::value<string>(&weights_file),"[REQD] Current feature weights file")
       ("optimize_feature,o",po::value<vector<string> >(), "Feature to optimize (if none specified, all weights listed in the weights file will be optimized)")
-      ("random_directions,d",po::value<unsigned>(&random_directions)->default_value(10),"Number of random directions to run the line optimizer in")
+      ("random_directions,d",po::value<unsigned>(&n_random)->default_value(10),"Number of random directions to run the line optimizer in")
       ("no_primary,n","don't use the primary (orthogonal each feature alone) directions")
       ("oracle_directions,O",po::value<unsigned>(&n_oracle)->default_value(0),"read the forests and choose this many directions based on heading toward a hope max (bleu+modelscore) translation.")
       ("oracle_start_random",po::bool_switch(&start_random),"sample random subsets of dev set for ALL oracle directions, not just those after a sequential run through it")
       ("oracle_batch,b",po::value<unsigned>(&oracle_batch)->default_value(10),"to produce each oracle direction, sum the 'gradient' over this many sentences")
       ("max_similarity,m",po::value<double>(&max_similarity)->default_value(0),"remove directions that are too similar (Tanimoto coeff. less than (1-this)).  0 means don't filter, 1 means only 1 direction allowed?")
       ("fear_to_hope,f",po::bool_switch(&fear_to_hope),"for each of the oracle_directions, also include a direction from fear to hope (as well as origin to hope)")
-      ("decoder_translations",po::value<string>(&decoder_translations)->default_value(""),"one per line decoder 1best translations for computing document BLEU vs. sentences-seen-so-far BLEU")
+      ("no_old_to_hope,n","don't emit the usual old -> hope oracle")
+      ("decoder_translations",po::value<string>(&decoder_translations_file)->default_value(""),"one per line decoder 1best translations for computing document BLEU vs. sentences-seen-so-far BLEU")
       ("help,h", "Help");
     po::options_description dcmdline_options;
     dcmdline_options.add(opts);
@@ -173,7 +175,10 @@ struct oracle_directions {
 
   oracle_directions() { }
 
+  Sentences model_hyps;
   void Init() {
+    if (!decoder_translations_file.empty())
+      model_hyps.Load(decoder_translations_file);
     start_random=false;
     assert(DirectoryExists(forest_repository));
     vector<string> features;
@@ -206,7 +211,7 @@ struct oracle_directions {
         Timer t("Loading forest from JSON "+forest_file(i));
         HypergraphIO::ReadFromJSON(rf.stream(), &hg);
       }
-      o=oracle.ComputeOracles(MakeMetadata(hg,i),&hg,origin,&cerr);
+      o=oracle.ComputeOracle(oracle.MakeMetadata(hg,i),&hg,origin,&cerr);
     }
     return o;
   }
@@ -221,13 +226,16 @@ struct oracle_directions {
       for (unsigned j=0;j<oracle_batch;++j,++b) {
         Oracle const& o=ComputeOracle((start_random||b>=dev_set_size) ? rsg() : b);
 
-        o2hope+=o.ModelHopeGradient();
+        if (old_to_hope)
+          o2hope+=o.ModelHopeGradient();
         if (fear_to_hope)
           fear2hope+=o.FearHopeGradient();
       }
       double N=(double)oracle_batch;
-      o2hope/=N;
-      directions.push_back(o2hope);
+      if (old_to_hope) {
+        o2hope/=N;
+        directions.push_back(o2hope);
+      }
       if (fear_to_hope) {
         fear2hope/=N;
         directions.push_back(fear2hope);
-- 
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