From 1b8181bf0d6e9137e6b9ccdbe414aec37377a1a9 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

---
 training/ttables.h | 101 -----------------------------------------------------
 1 file changed, 101 deletions(-)
 delete mode 100644 training/ttables.h

(limited to 'training/ttables.h')

diff --git a/training/ttables.h b/training/ttables.h
deleted file mode 100644
index 9baa13ca..00000000
--- a/training/ttables.h
+++ /dev/null
@@ -1,101 +0,0 @@
-#ifndef _TTABLES_H_
-#define _TTABLES_H_
-
-#include <iostream>
-#include <tr1/unordered_map>
-
-#include "sparse_vector.h"
-#include "m.h"
-#include "wordid.h"
-#include "tdict.h"
-
-class TTable {
- public:
-  TTable() {}
-  typedef std::tr1::unordered_map<WordID, double> Word2Double;
-  typedef std::tr1::unordered_map<WordID, Word2Double> Word2Word2Double;
-  inline double prob(const int& e, const int& f) const {
-    const Word2Word2Double::const_iterator cit = ttable.find(e);
-    if (cit != ttable.end()) {
-      const Word2Double& cpd = cit->second;
-      const Word2Double::const_iterator it = cpd.find(f);
-      if (it == cpd.end()) return 1e-9;
-      return it->second;
-    } else {
-      return 1e-9;
-    }
-  }
-  inline void Increment(const int& e, const int& f) {
-    counts[e][f] += 1.0;
-  }
-  inline void Increment(const int& e, const int& f, double x) {
-    counts[e][f] += x;
-  }
-  void NormalizeVB(const double alpha) {
-    ttable.swap(counts);
-    for (Word2Word2Double::iterator cit = ttable.begin();
-         cit != ttable.end(); ++cit) {
-      double tot = 0;
-      Word2Double& cpd = cit->second;
-      for (Word2Double::iterator it = cpd.begin(); it != cpd.end(); ++it)
-        tot += it->second + alpha;
-      for (Word2Double::iterator it = cpd.begin(); it != cpd.end(); ++it)
-        it->second = exp(Md::digamma(it->second + alpha) - Md::digamma(tot));
-    }
-    counts.clear();
-  }
-  void Normalize() {
-    ttable.swap(counts);
-    for (Word2Word2Double::iterator cit = ttable.begin();
-         cit != ttable.end(); ++cit) {
-      double tot = 0;
-      Word2Double& cpd = cit->second;
-      for (Word2Double::iterator it = cpd.begin(); it != cpd.end(); ++it)
-        tot += it->second;
-      for (Word2Double::iterator it = cpd.begin(); it != cpd.end(); ++it)
-        it->second /= tot;
-    }
-    counts.clear();
-  }
-  // adds counts from another TTable - probabilities remain unchanged
-  TTable& operator+=(const TTable& rhs) {
-    for (Word2Word2Double::const_iterator it = rhs.counts.begin();
-         it != rhs.counts.end(); ++it) {
-      const Word2Double& cpd = it->second;
-      Word2Double& tgt = counts[it->first];
-      for (Word2Double::const_iterator j = cpd.begin(); j != cpd.end(); ++j) {
-        tgt[j->first] += j->second;
-      }
-    }
-    return *this;
-  }
-  void ShowTTable() const {
-    for (Word2Word2Double::const_iterator it = ttable.begin(); it != ttable.end(); ++it) {
-      const Word2Double& cpd = it->second;
-      for (Word2Double::const_iterator j = cpd.begin(); j != cpd.end(); ++j) {
-        std::cerr << "P(" << TD::Convert(j->first) << '|' << TD::Convert(it->first) << ") = " << j->second << std::endl;
-      }
-    }
-  }
-  void ShowCounts() const {
-    for (Word2Word2Double::const_iterator it = counts.begin(); it != counts.end(); ++it) {
-      const Word2Double& cpd = it->second;
-      for (Word2Double::const_iterator j = cpd.begin(); j != cpd.end(); ++j) {
-        std::cerr << "c(" << TD::Convert(j->first) << '|' << TD::Convert(it->first) << ") = " << j->second << std::endl;
-      }
-    }
-  }
-  void DeserializeProbsFromText(std::istream* in);
-  void SerializeCounts(std::string* out) const { SerializeHelper(out, counts); }
-  void DeserializeCounts(const std::string& in) { DeserializeHelper(in, &counts); }
-  void SerializeProbs(std::string* out) const { SerializeHelper(out, ttable); }
-  void DeserializeProbs(const std::string& in) { DeserializeHelper(in, &ttable); }
- private:
-  static void SerializeHelper(std::string*, const Word2Word2Double& o);
-  static void DeserializeHelper(const std::string&, Word2Word2Double* o);
- public:
-  Word2Word2Double ttable;
-  Word2Word2Double counts;
-};
-
-#endif
-- 
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