From fe86d20720cedd2e9540637efcafe1715c001894 Mon Sep 17 00:00:00 2001
From: Patrick Simianer <p@simianer.de>
Date: Wed, 23 Nov 2011 21:39:36 +0100
Subject: alld pair sampling, removed unnecessary stuff from PRO

---
 dtrain/dtrain.cc      |  9 +++++----
 dtrain/pairsampling.h | 20 +++++++++++++++-----
 2 files changed, 20 insertions(+), 9 deletions(-)

(limited to 'dtrain')

diff --git a/dtrain/dtrain.cc b/dtrain/dtrain.cc
index 3d3aa2d3..1769c690 100644
--- a/dtrain/dtrain.cc
+++ b/dtrain/dtrain.cc
@@ -69,10 +69,9 @@ dtrain_init(int argc, char** argv, po::variables_map* cfg)
     cerr << "Wrong 'filter' param: '" << (*cfg)["filter"].as<string>() << "', use 'uniq' or 'no'." << endl;
     return false;
   }
-  if ((*cfg)["pair_sampling"].as<string>() != "all"
-       && (*cfg)["pair_sampling"].as<string>() != "5050" && (*cfg)["pair_sampling"].as<string>() != "108010"
-       && (*cfg)["pair_sampling"].as<string>() != "PRO") {
-    cerr << "Wrong 'pair_sampling' param: '" << (*cfg)["pair_sampling"].as<string>() << "', use 'all' or 'rand'." << endl;
+  string s = (*cfg)["pair_sampling"].as<string>();
+  if (s != "all" && s != "5050" && s != "108010" && s != "PRO" && s != "alld") {
+    cerr << "Wrong 'pair_sampling' param: '" << (*cfg)["pair_sampling"].as<string>() << "'." << endl;
     return false;
   }
   if ((*cfg)["select_weights"].as<string>() != "last"
@@ -390,6 +389,8 @@ main(int argc, char** argv)
         multpart108010(samples, pairs);
       if (pair_sampling == "PRO")
         PROsampling(samples, pairs);
+      if (pair_sampling == "alld")
+        all_pairs_discard(samples, pairs);
       npairs += pairs.size();
 
       for (vector<pair<ScoredHyp,ScoredHyp> >::iterator it = pairs.begin();
diff --git a/dtrain/pairsampling.h b/dtrain/pairsampling.h
index 4399dfee..9b88a4be 100644
--- a/dtrain/pairsampling.h
+++ b/dtrain/pairsampling.h
@@ -82,18 +82,14 @@ PROsampling(vector<ScoredHyp>* s, vector<pair<ScoredHyp,ScoredHyp> >& training)
 {
   unsigned max_count = 5000, count = 0;
   bool b = false;
-  //unsigned max_pairs = (s->size()*(s->size()-1))/2;
-  vector<pair<unsigned,unsigned> > taken;
   for (unsigned i = 0; i < s->size()-1; i++) {
     for (unsigned j = i+1; j < s->size(); j++) {
       pair<ScoredHyp,ScoredHyp> p;
       p.first = (*s)[i];
       p.second = (*s)[j];
-      vector<pair<unsigned,unsigned> >::iterator it = find(taken.begin(), taken.end(), make_pair(i, j));
-      if (_PRO_accept_pair(p) && it == taken.end()) {
+      if (_PRO_accept_pair(p)) {
         training.push_back(p);
         count++;
-        taken.push_back(make_pair(i, j));
         if (count == max_count) {
           b = true;
           break;
@@ -108,6 +104,20 @@ PROsampling(vector<ScoredHyp>* s, vector<pair<ScoredHyp,ScoredHyp> >& training)
   return;
 }
 
+inline void
+all_pairs_discard(vector<ScoredHyp>* s, vector<pair<ScoredHyp,ScoredHyp> >& training)
+{
+  for (unsigned i = 0; i < s->size()-1; i++) {
+    for (unsigned j = i+1; j < s->size(); j++) {
+      pair<ScoredHyp,ScoredHyp> p;
+      p.first = (*s)[i];
+      p.second = (*s)[j];
+      if(_PRO_accept_pair(p))
+        training.push_back(p);
+    }
+  }
+}
+
 
 } // namespace
 
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