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

1 files changed, 0 insertions, 108 deletions

diff --git a/klm/lm/sri.cc b/klm/lm/sri.cc
deleted file mode 100644
index 825f699b..00000000
--- a/klm/lm/sri.cc
+++ /dev/null
@@ -1,108 +0,0 @@
-#include "lm/lm_exception.hh"
-#include "lm/sri.hh"
-
-#include <Ngram.h>
-#include <Vocab.h>
-
-#include <errno.h>
-
-namespace lm {
-namespace sri {
-
-Vocabulary::Vocabulary() : sri_(new Vocab) {}
-
-Vocabulary::~Vocabulary() {}
-
-WordIndex Vocabulary::Index(const char *str) const {
-  WordIndex ret = sri_->getIndex(str);
-  // NGram wants the index of Vocab_Unknown for unknown words, but for some reason SRI returns Vocab_None here :-(.
-  if (ret == Vocab_None) {
-    return not_found_;
-  } else {
-    return ret;
-  }
-}
-
-const char *Vocabulary::Word(WordIndex index) const {
-  return sri_->getWord(index);
-}
-
-void Vocabulary::FinishedLoading() {
-  SetSpecial(
-    sri_->ssIndex(),
-    sri_->seIndex(),
-    sri_->unkIndex());
-}
-
-namespace {
-Ngram *MakeSRIModel(const char *file_name, unsigned int ngram_length, Vocab &sri_vocab) {
-  sri_vocab.unkIsWord() = true;
-  std::auto_ptr<Ngram> ret(new Ngram(sri_vocab, ngram_length));
-  File file(file_name, "r");
-  errno = 0;
-  if (!ret->read(file)) {
-    UTIL_THROW(FormatLoadException, "reading file " << file_name << " with SRI failed.");
-  }
-  return ret.release();
-}
-} // namespace
-
-Model::Model(const char *file_name, unsigned int ngram_length) : sri_(MakeSRIModel(file_name, ngram_length, *vocab_.sri_)) {
-  if (!sri_->setorder()) {
-    UTIL_THROW(FormatLoadException, "Can't have an SRI model with order 0.");
-  }
-  vocab_.FinishedLoading();
-  State begin_state = State();
-  begin_state.valid_length_ = 1;
-  if (kMaxOrder > 1) {
-    begin_state.history_[0] = vocab_.BeginSentence();
-    if (kMaxOrder > 2) begin_state.history_[1] = Vocab_None;
-  }
-  State null_state = State();
-  null_state.valid_length_ = 0;
-  if (kMaxOrder > 1) null_state.history_[0] = Vocab_None;
-  Init(begin_state, null_state, vocab_, sri_->setorder());
-  not_found_ = vocab_.NotFound();
-}
-
-Model::~Model() {}
-
-namespace {
-
-/* Argh SRI's wordProb knows the ngram length but doesn't return it.  One more
- * reason you should use my model.  */
-// TODO(stolcke): fix SRILM so I don't have to do this.   
-unsigned int MatchedLength(Ngram &model, const WordIndex new_word, const SRIVocabIndex *const_history) {
-  unsigned int out_length = 0;
-  // This gets the length of context used, which is ngram_length - 1 unless new_word is OOV in which case it is 0.
-  model.contextID(new_word, const_history, out_length);
-  return out_length + 1;
-}
-
-} // namespace
-
-FullScoreReturn Model::FullScore(const State &in_state, const WordIndex new_word, State &out_state) const {
-  // If you get a compiler in this function, change SRIVocabIndex in sri.hh to match the one found in SRI's Vocab.h.
-  const SRIVocabIndex *const_history;
-  SRIVocabIndex local_history[Order()];
-  if (in_state.valid_length_ < kMaxOrder - 1) {
-    const_history = in_state.history_;
-  } else {
-    std::copy(in_state.history_, in_state.history_ + in_state.valid_length_, local_history);
-    local_history[in_state.valid_length_] = Vocab_None;
-    const_history = local_history;
-  }
-  FullScoreReturn ret;
-  ret.ngram_length = MatchedLength(*sri_, new_word, const_history);
-  out_state.history_[0] = new_word;
-  out_state.valid_length_ = std::min<unsigned char>(ret.ngram_length, Order() - 1);
-  std::copy(const_history, const_history + out_state.valid_length_ - 1, out_state.history_ + 1);
-  if (out_state.valid_length_ < kMaxOrder - 1) {
-    out_state.history_[out_state.valid_length_] = Vocab_None;
-  }
-  ret.prob = sri_->wordProb(new_word, const_history);
-  return ret;
-}
-
-} // namespace sri
-} // namespace lm