Merge branch 'master' of https://github.com/redpony/cdec

1 files changed, 0 insertions, 243 deletions

diff --git a/gi/pf/align-lexonly-pyp.cc b/gi/pf/align-lexonly-pyp.cc
deleted file mode 100644
index e7509f57..00000000
--- a/gi/pf/align-lexonly-pyp.cc
+++ /dev/null
@@ -1,243 +0,0 @@
-#include <iostream>
-#include <queue>
-
-#include <boost/program_options.hpp>
-#include <boost/program_options/variables_map.hpp>
-
-#include "tdict.h"
-#include "stringlib.h"
-#include "filelib.h"
-#include "array2d.h"
-#include "sampler.h"
-#include "corpus.h"
-#include "pyp_tm.h"
-#include "hpyp_tm.h"
-#include "quasi_model2.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()
-        ("samples,s",po::value<unsigned>()->default_value(1000),"Number of samples")
-        ("infer_alignment_hyperparameters,I", "Infer alpha and p_null, otherwise fixed values will be assumed")
-        ("p_null,0", po::value<double>()->default_value(0.08), "probability of aligning to null")
-        ("align_alpha,a", po::value<double>()->default_value(4.0), "how 'tight' is the bias toward be along the diagonal?")
-        ("input,i",po::value<string>(),"Read parallel data from")
-        ("random_seed,S",po::value<uint32_t>(), "Random seed");
-  po::options_description clo("Command line options");
-  clo.add_options()
-        ("config", po::value<string>(), "Configuration file")
-        ("help,h", "Print this help message and exit");
-  po::options_description dconfig_options, dcmdline_options;
-  dconfig_options.add(opts);
-  dcmdline_options.add(opts).add(clo);
-  
-  po::store(parse_command_line(argc, argv, dcmdline_options), *conf);
-  if (conf->count("config")) {
-    ifstream config((*conf)["config"].as<string>().c_str());
-    po::store(po::parse_config_file(config, dconfig_options), *conf);
-  }
-  po::notify(*conf);
-
-  if (conf->count("help") || (conf->count("input") == 0)) {
-    cerr << dcmdline_options << endl;
-    exit(1);
-  }
-}
-
-MT19937* prng;
-
-struct LexicalAlignment {
-  unsigned char src_index;
-  bool is_transliteration;
-  vector<pair<short, short> > derivation;
-};
-
-struct AlignedSentencePair {
-  vector<WordID> src;
-  vector<WordID> trg;
-  vector<LexicalAlignment> a;
-  Array2D<short> posterior;
-};
-
-template <class LexicalTranslationModel>
-struct Aligner {
-  Aligner(const vector<vector<WordID> >& lets,
-          int vocab_size,
-          int num_letters,
-          const po::variables_map& conf,
-          vector<AlignedSentencePair>* c) :
-      corpus(*c),
-      paj_model(conf["align_alpha"].as<double>(), conf["p_null"].as<double>()),
-      infer_paj(conf.count("infer_alignment_hyperparameters") > 0),
-      model(lets, vocab_size, num_letters),
-      kNULL(TD::Convert("NULL")) {
-    assert(lets[kNULL].size() == 0);
-  }
-
-  vector<AlignedSentencePair>& corpus;
-  QuasiModel2 paj_model;
-  const bool infer_paj;
-  LexicalTranslationModel model;
-  const WordID kNULL;
-
-  void ResampleHyperparameters() {
-    model.ResampleHyperparameters(prng);
-    if (infer_paj) paj_model.ResampleHyperparameters(prng);
-  }
-
-  void InitializeRandom() {
-    cerr << "Initializing with random alignments ...\n";
-    for (unsigned i = 0; i < corpus.size(); ++i) {
-      AlignedSentencePair& asp = corpus[i];
-      asp.a.resize(asp.trg.size());
-      for (unsigned j = 0; j < asp.trg.size(); ++j) {
-        unsigned char& a_j = asp.a[j].src_index;
-        a_j = prng->next() * (1 + asp.src.size());
-        const WordID f_a_j = (a_j ? asp.src[a_j - 1] : kNULL);
-        model.Increment(f_a_j, asp.trg[j], &*prng);
-        paj_model.Increment(a_j, j, asp.src.size(), asp.trg.size());
-      }
-    }
-    cerr << "Corpus intialized randomly." << endl;
-    cerr << "LLH = " << Likelihood() << "    \t(Amodel=" << paj_model.Likelihood()
-         << " TModel=" << model.Likelihood() << ") contexts=" << model.UniqueConditioningContexts() << endl;
-  }
-
-  void ResampleCorpus() {
-    for (unsigned i = 0; i < corpus.size(); ++i) {
-      AlignedSentencePair& asp = corpus[i];
-      SampleSet<prob_t> ss; ss.resize(asp.src.size() + 1);
-      for (unsigned j = 0; j < asp.trg.size(); ++j) {
-        unsigned char& a_j = asp.a[j].src_index;
-        const WordID e_j = asp.trg[j];
-        WordID f_a_j = (a_j ? asp.src[a_j - 1] : kNULL);
-        model.Decrement(f_a_j, e_j, prng);
-        paj_model.Decrement(a_j, j, asp.src.size(), asp.trg.size());
-
-        for (unsigned prop_a_j = 0; prop_a_j <= asp.src.size(); ++prop_a_j) {
-          const WordID prop_f = (prop_a_j ? asp.src[prop_a_j - 1] : kNULL);
-          ss[prop_a_j] = model.Prob(prop_f, e_j);
-          ss[prop_a_j] *= paj_model.Prob(prop_a_j, j, asp.src.size(), asp.trg.size());
-        }
-        a_j = prng->SelectSample(ss);
-        f_a_j = (a_j ? asp.src[a_j - 1] : kNULL);
-        model.Increment(f_a_j, e_j, prng);
-        paj_model.Increment(a_j, j, asp.src.size(), asp.trg.size());
-      }
-    }
-  }
-
-  prob_t Likelihood() const {
-    return model.Likelihood() * paj_model.Likelihood();
-  }
-};
-
-void ExtractLetters(const set<WordID>& v, vector<vector<WordID> >* l, set<WordID>* letset = NULL) {
-  for (set<WordID>::const_iterator it = v.begin(); it != v.end(); ++it) {
-    vector<WordID>& letters = (*l)[*it];
-    if (letters.size()) continue;   // if e and f have the same word
-
-    const string& w = TD::Convert(*it);
-    
-    size_t cur = 0;
-    while (cur < w.size()) {
-      const size_t len = UTF8Len(w[cur]);
-      letters.push_back(TD::Convert(w.substr(cur, len)));
-      if (letset) letset->insert(letters.back());
-      cur += len;
-    }
-  }
-}
-
-void Debug(const AlignedSentencePair& asp) {
-  cerr << TD::GetString(asp.src) << endl << TD::GetString(asp.trg) << endl;
-  Array2D<bool> a(asp.src.size(), asp.trg.size());
-  for (unsigned j = 0; j < asp.trg.size(); ++j) {
-    assert(asp.a[j].src_index <= asp.src.size());
-    if (asp.a[j].src_index) a(asp.a[j].src_index - 1, j) = true;
-  }
-  cerr << a << endl;
-}
-
-void AddSample(AlignedSentencePair* asp) {
-  for (unsigned j = 0; j < asp->trg.size(); ++j)
-    asp->posterior(asp->a[j].src_index, j)++;
-}
-
-void WriteAlignments(const AlignedSentencePair& asp) {
-  bool first = true;
-  for (unsigned j = 0; j < asp.trg.size(); ++j) {
-    int src_index = -1;
-    int mc = -1;
-    for (unsigned i = 0; i <= asp.src.size(); ++i) {
-      if (asp.posterior(i, j) > mc) {
-        mc = asp.posterior(i, j);
-        src_index = i;
-      }
-    }
-
-    if (src_index) {
-      if (first) first = false; else cout << ' ';
-      cout << (src_index - 1) << '-' << j;
-    }
-  }
-  cout << endl;
-}
-
-int main(int argc, char** argv) {
-  po::variables_map conf;
-  InitCommandLine(argc, argv, &conf);
-
-  if (conf.count("random_seed"))
-    prng = new MT19937(conf["random_seed"].as<uint32_t>());
-  else
-    prng = new MT19937;
-
-  vector<vector<int> > corpuse, corpusf;
-  set<int> vocabe, vocabf;
-  corpus::ReadParallelCorpus(conf["input"].as<string>(), &corpusf, &corpuse, &vocabf, &vocabe);
-  cerr << "f-Corpus size: " << corpusf.size() << " sentences\n";
-  cerr << "f-Vocabulary size: " << vocabf.size() << " types\n";
-  cerr << "f-Corpus size: " << corpuse.size() << " sentences\n";
-  cerr << "f-Vocabulary size: " << vocabe.size() << " types\n";
-  assert(corpusf.size() == corpuse.size());
-
-  vector<AlignedSentencePair> corpus(corpuse.size());
-  for (unsigned i = 0; i < corpuse.size(); ++i) {
-    corpus[i].src.swap(corpusf[i]);
-    corpus[i].trg.swap(corpuse[i]);
-    corpus[i].posterior.resize(corpus[i].src.size() + 1, corpus[i].trg.size());
-  }
-  corpusf.clear(); corpuse.clear();
-
-  vocabf.insert(TD::Convert("NULL"));
-  vector<vector<WordID> > letters(TD::NumWords());
-  set<WordID> letset;
-  ExtractLetters(vocabe, &letters, &letset);
-  ExtractLetters(vocabf, &letters, NULL);
-  letters[TD::Convert("NULL")].clear();
-
-  //Aligner<PYPLexicalTranslation> aligner(letters, vocabe.size(), letset.size(), conf, &corpus);
-  Aligner<HPYPLexicalTranslation> aligner(letters, vocabe.size(), letset.size(), conf, &corpus);
-  aligner.InitializeRandom();
-
-  const unsigned samples = conf["samples"].as<unsigned>();
-  for (int i = 0; i < samples; ++i) {
-    for (int j = 65; j < 67; ++j) Debug(corpus[j]);
-    if (i % 10 == 9) {
-      aligner.ResampleHyperparameters();
-      cerr << "LLH = " << aligner.Likelihood() << "    \t(Amodel=" << aligner.paj_model.Likelihood()
-           << " TModel=" << aligner.model.Likelihood() << ") contexts=" << aligner.model.UniqueConditioningContexts() << endl;
-    }
-    aligner.ResampleCorpus();
-    if (i > (samples / 5) && (i % 6 == 5)) for (int j = 0; j < corpus.size(); ++j) AddSample(&corpus[j]);
-  }
-  for (unsigned i = 0; i < corpus.size(); ++i)
-    WriteAlignments(corpus[i]);
-  aligner.model.Summary();
-
-  return 0;
-}