From 8aa29810bb77611cc20b7a384897ff6703783ea1 Mon Sep 17 00:00:00 2001
From: Chris Dyer <cdyer@allegro.clab.cs.cmu.edu>
Date: Sun, 18 Nov 2012 13:35:42 -0500
Subject: major restructure of the training code

---
 dtrain/score.h | 212 ---------------------------------------------------------
 1 file changed, 212 deletions(-)
 delete mode 100644 dtrain/score.h

(limited to 'dtrain/score.h')

diff --git a/dtrain/score.h b/dtrain/score.h
deleted file mode 100644
index f317c903..00000000
--- a/dtrain/score.h
+++ /dev/null
@@ -1,212 +0,0 @@
-#ifndef _DTRAIN_SCORE_H_
-#define _DTRAIN_SCORE_H_
-
-#include "kbestget.h"
-
-using namespace std;
-
-namespace dtrain
-{
-
-
-struct NgramCounts
-{
-  unsigned N_;
-  map<unsigned, score_t> clipped_;
-  map<unsigned, score_t> sum_;
-
-  NgramCounts(const unsigned N) : N_(N) { Zero(); }
-
-  inline void
-  operator+=(const NgramCounts& rhs)
-  {
-    if (rhs.N_ > N_) Resize(rhs.N_);
-    for (unsigned i = 0; i < N_; i++) {
-      this->clipped_[i] += rhs.clipped_.find(i)->second;
-      this->sum_[i] += rhs.sum_.find(i)->second;
-    }
-  }
-
-  inline const NgramCounts
-  operator+(const NgramCounts &other) const
-  {
-    NgramCounts result = *this;
-    result += other;
-    return result;
-  }
-
-  inline void
-  operator*=(const score_t rhs)
-  {
-    for (unsigned i = 0; i < N_; i++) {
-      this->clipped_[i] *= rhs;
-      this->sum_[i] *= rhs;
-    }
-  }
-
-  inline void
-  Add(const unsigned count, const unsigned ref_count, const unsigned i)
-  {
-    assert(i < N_);
-    if (count > ref_count) {
-      clipped_[i] += ref_count;
-    } else {
-      clipped_[i] += count;
-    }
-    sum_[i] += count;
-  }
-
-  inline void
-  Zero()
-  {
-    for (unsigned i = 0; i < N_; i++) {
-      clipped_[i] = 0.;
-      sum_[i] = 0.;
-    }
-  }
-
-  inline void
-  One()
-  {
-    for (unsigned i = 0; i < N_; i++) {
-      clipped_[i] = 1.;
-      sum_[i] = 1.;
-    }
-  }
-
-  inline void
-  Print()
-  {
-    for (unsigned i = 0; i < N_; i++) {
-      cout << i+1 << "grams (clipped):\t" << clipped_[i] << endl;
-      cout << i+1 << "grams:\t\t\t" << sum_[i] << endl;
-    }
-  }
-
-  inline void Resize(unsigned N)
-  {
-    if (N == N_) return;
-    else if (N > N_) {
-      for (unsigned i = N_; i < N; i++) {
-        clipped_[i] = 0.;
-        sum_[i] = 0.;
-      }
-    } else { // N < N_
-      for (unsigned i = N_-1; i > N-1; i--) {
-        clipped_.erase(i);
-        sum_.erase(i);
-      }
-    }
-    N_ = N;
-  }
-};
-
-typedef map<vector<WordID>, unsigned> Ngrams;
-
-inline Ngrams
-make_ngrams(const vector<WordID>& s, const unsigned N)
-{
-  Ngrams ngrams;
-  vector<WordID> ng;
-  for (size_t i = 0; i < s.size(); i++) {
-    ng.clear();
-    for (unsigned j = i; j < min(i+N, s.size()); j++) {
-      ng.push_back(s[j]);
-      ngrams[ng]++;
-    }
-  }
-  return ngrams;
-}
-
-inline NgramCounts
-make_ngram_counts(const vector<WordID>& hyp, const vector<WordID>& ref, const unsigned N)
-{
-  Ngrams hyp_ngrams = make_ngrams(hyp, N);
-  Ngrams ref_ngrams = make_ngrams(ref, N);
-  NgramCounts counts(N);
-  Ngrams::iterator it;
-  Ngrams::iterator ti;
-  for (it = hyp_ngrams.begin(); it != hyp_ngrams.end(); it++) {
-    ti = ref_ngrams.find(it->first);
-    if (ti != ref_ngrams.end()) {
-      counts.Add(it->second, ti->second, it->first.size() - 1);
-    } else {
-      counts.Add(it->second, 0, it->first.size() - 1);
-    }
-  }
-  return counts;
-}
-
-struct BleuScorer : public LocalScorer
-{
-  score_t Bleu(NgramCounts& counts, const unsigned hyp_len, const unsigned ref_len);
-  score_t Score(vector<WordID>& hyp, vector<WordID>& ref, const unsigned /*rank*/, const unsigned /*src_len*/);
-};
-
-struct StupidBleuScorer : public LocalScorer
-{
-  score_t Score(vector<WordID>& hyp, vector<WordID>& ref, const unsigned /*rank*/, const unsigned /*src_len*/);
-};
-
-struct SmoothBleuScorer : public LocalScorer
-{
-  score_t Score(vector<WordID>& hyp, vector<WordID>& ref, const unsigned /*rank*/, const unsigned /*src_len*/);
-};
-
-struct SumBleuScorer : public LocalScorer
-{
-   score_t Score(vector<WordID>& hyp, vector<WordID>& ref, const unsigned /*rank*/, const unsigned /*src_len*/);
-};
-
-struct SumExpBleuScorer : public LocalScorer
-{
-   score_t Score(vector<WordID>& hyp, vector<WordID>& ref, const unsigned /*rank*/, const unsigned /*src_len*/);
-};
-
-struct SumWhateverBleuScorer : public LocalScorer
-{
-   score_t Score(vector<WordID>& hyp, vector<WordID>& ref, const unsigned /*rank*/, const unsigned /*src_len*/);
-};
-
-struct ApproxBleuScorer : public BleuScorer
-{
-  NgramCounts glob_onebest_counts_;
-  unsigned glob_hyp_len_, glob_ref_len_, glob_src_len_;
-  score_t discount_;
-
-  ApproxBleuScorer(unsigned N, score_t d) : glob_onebest_counts_(NgramCounts(N)), discount_(d)
-  {
-    glob_hyp_len_ = glob_ref_len_ = glob_src_len_ = 0;
-  }
-
-  inline void Reset() {
-    glob_onebest_counts_.Zero();
-    glob_hyp_len_ = glob_ref_len_ = glob_src_len_ = 0.;
-  }
-
-  score_t Score(vector<WordID>& hyp, vector<WordID>& ref, const unsigned rank, const unsigned src_len);
-};
-
-struct LinearBleuScorer : public BleuScorer
-{
-  unsigned onebest_len_;
-  NgramCounts onebest_counts_;
-
-  LinearBleuScorer(unsigned N) : onebest_len_(1), onebest_counts_(N)
-  {
-    onebest_counts_.One();
-  }
-
-  score_t Score(vector<WordID>& hyp, vector<WordID>& ref, const unsigned rank, const unsigned /*src_len*/);
-
-  inline void Reset() {
-    onebest_len_ = 1;
-    onebest_counts_.One();
-  }
-};
-
-
-} // namespace
-
-#endif
-
-- 
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