From 203c3c3357b9ed8cfe44932c2bf5ea19eba6238c Mon Sep 17 00:00:00 2001
From: Chris Dyer <cdyer@cs.cmu.edu>
Date: Fri, 27 Jan 2012 13:19:27 -0500
Subject: migration to new metric api for vest, clean up of unsupported/not
 functional code

---
 vest/mbr_kbest.cc | 138 ------------------------------------------------------
 1 file changed, 138 deletions(-)
 delete mode 100644 vest/mbr_kbest.cc

(limited to 'vest/mbr_kbest.cc')

diff --git a/vest/mbr_kbest.cc b/vest/mbr_kbest.cc
deleted file mode 100644
index 2867b36b..00000000
--- a/vest/mbr_kbest.cc
+++ /dev/null
@@ -1,138 +0,0 @@
-#include <iostream>
-#include <vector>
-
-#include <boost/program_options.hpp>
-
-#include "prob.h"
-#include "tdict.h"
-#include "scorer.h"
-#include "filelib.h"
-#include "stringlib.h"
-
-using namespace std;
-
-namespace po = boost::program_options;
-
-void InitCommandLine(int argc, char** argv, po::variables_map* conf) {
-  po::options_description opts("Configuration options");
-  opts.add_options()
-        ("scale,a",po::value<double>()->default_value(1.0), "Posterior scaling factor (alpha)")
-        ("loss_function,l",po::value<string>()->default_value("bleu"), "Loss function")
-        ("input,i",po::value<string>()->default_value("-"), "File to read k-best lists from")
-        ("output_list,L", "Show reranked list as output")
-        ("help,h", "Help");
-  po::options_description dcmdline_options;
-  dcmdline_options.add(opts);
-  po::store(parse_command_line(argc, argv, dcmdline_options), *conf);
-  bool flag = false;
-  if (flag || conf->count("help")) {
-    cerr << dcmdline_options << endl;
-    exit(1);
-  }
-}
-
-struct LossComparer {
-  bool operator()(const pair<vector<WordID>, double>& a, const pair<vector<WordID>, double>& b) const {
-    return a.second < b.second;
-  }
-};
-
-bool ReadKBestList(istream* in, string* sent_id, vector<pair<vector<WordID>, prob_t> >* list) {
-  static string cache_id;
-  static pair<vector<WordID>, prob_t> cache_pair;
-  list->clear();
-  string cur_id;
-  if (cache_pair.first.size() > 0) {
-    list->push_back(cache_pair);
-    cur_id = cache_id;
-    cache_pair.first.clear();
-  }
-  string line;
-  string tstr;
-  while(*in) {
-    getline(*in, line);
-    if (line.empty()) continue;
-    size_t p1 = line.find(" ||| ");
-    if (p1 == string::npos) { cerr << "Bad format: " << line << endl; abort(); }
-    size_t p2 = line.find(" ||| ", p1 + 4);
-    if (p2 == string::npos) { cerr << "Bad format: " << line << endl; abort(); }
-    size_t p3 = line.rfind(" ||| ");
-    cache_id = line.substr(0, p1);
-    tstr = line.substr(p1 + 5, p2 - p1 - 5);
-    double val = strtod(line.substr(p3 + 5).c_str(), NULL);
-    TD::ConvertSentence(tstr, &cache_pair.first);
-    cache_pair.second.logeq(val);
-    if (cur_id.empty()) cur_id = cache_id;
-    if (cur_id == cache_id) {
-      list->push_back(cache_pair);
-      *sent_id = cur_id;
-      cache_pair.first.clear();
-    } else { break; }
-  }
-  return !list->empty();
-}
-
-int main(int argc, char** argv) {
-  po::variables_map conf;
-  InitCommandLine(argc, argv, &conf);
-  const string metric = conf["loss_function"].as<string>();
-  const bool output_list = conf.count("output_list") > 0;
-  const string file = conf["input"].as<string>();
-  const double mbr_scale = conf["scale"].as<double>();
-  cerr << "Posterior scaling factor (alpha) = " << mbr_scale << endl;
-
-  ScoreType type = ScoreTypeFromString(metric);
-  vector<pair<vector<WordID>, prob_t> > list;
-  ReadFile rf(file);
-  string sent_id;
-  while(ReadKBestList(rf.stream(), &sent_id, &list)) {
-    vector<prob_t> joints(list.size());
-    const prob_t max_score = pow(list.front().second, mbr_scale);
-    prob_t marginal = prob_t::Zero();
-    for (int i = 0 ; i < list.size(); ++i) {
-      const prob_t joint = pow(list[i].second, mbr_scale) / max_score;
-      joints[i] = joint;
-      // cerr << "list[" << i << "] joint=" << log(joint) << endl;
-      marginal += joint;
-    }
-    int mbr_idx = -1;
-    vector<double> mbr_scores(output_list ? list.size() : 0);
-    double mbr_loss = numeric_limits<double>::max();
-    for (int i = 0 ; i < list.size(); ++i) {
-      vector<vector<WordID> > refs(1, list[i].first);
-      //cerr << i << ": " << list[i].second <<"\t" << TD::GetString(list[i].first) << endl;
-      ScorerP scorer = SentenceScorer::CreateSentenceScorer(type, refs);
-      double wl_acc = 0;
-      for (int j = 0; j < list.size(); ++j) {
-        if (i != j) {
-          ScoreP s = scorer->ScoreCandidate(list[j].first);
-          double loss = 1.0 - s->ComputeScore();
-          if (type == TER || type == AER) loss = 1.0 - loss;
-          double weighted_loss = loss * (joints[j] / marginal);
-          wl_acc += weighted_loss;
-          if ((!output_list) && wl_acc > mbr_loss) break;
-        }
-      }
-      if (output_list) mbr_scores[i] = wl_acc;
-      if (wl_acc < mbr_loss) {
-        mbr_loss = wl_acc;
-        mbr_idx = i;
-      }
-    }
-    // cerr << "ML translation: " << TD::GetString(list[0].first) << endl;
-    cerr << "MBR Best idx: " << mbr_idx << endl;
-    if (output_list) {
-      for (int i = 0; i < list.size(); ++i)
-        list[i].second.logeq(mbr_scores[i]);
-      sort(list.begin(), list.end(), LossComparer());
-      for (int i = 0; i < list.size(); ++i)
-        cout << sent_id << " ||| "
-             << TD::GetString(list[i].first) << " ||| "
-             << log(list[i].second) << endl;
-    } else {
-      cout << TD::GetString(list[mbr_idx].first) << endl;
-    }
-  }
-  return 0;
-}
-
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