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1 files changed, 38 insertions, 0 deletions

diff --git a/gi/pf/hpyp_tm.h b/gi/pf/hpyp_tm.h
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+++ b/gi/pf/hpyp_tm.h
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+#ifndef HPYP_LEX_TRANS
+#define HPYP_LEX_TRANS
+
+#include <vector>
+#include "wordid.h"
+#include "prob.h"
+#include "sampler.h"
+#include "freqdict.h"
+#include "poisson_uniform_word_model.h"
+
+struct FreqBinner;
+template <class B> struct PYPWordModel;
+template <typename T, class B> struct ConditionalPYPWordModel;
+
+struct HPYPLexicalTranslation {
+  explicit HPYPLexicalTranslation(const std::vector<std::vector<WordID> >& lets,
+                                 const unsigned vocab_size,
+                                 const unsigned num_letters);
+
+  prob_t Likelihood() const;
+
+  void ResampleHyperparameters(MT19937* rng);
+  prob_t Prob(WordID src, WordID trg) const;  // return p(trg | src)
+  void Summary() const;
+  void Increment(WordID src, WordID trg, MT19937* rng);
+  void Decrement(WordID src, WordID trg, MT19937* rng);
+  unsigned UniqueConditioningContexts() const;
+
+ private:
+  const std::vector<std::vector<WordID> >& letters;   // spelling dictionary
+  PoissonUniformWordModel base;  // "generator" of English types
+  PYPWordModel<PoissonUniformWordModel>* up0;  // model English lexicon
+  ConditionalPYPWordModel<PYPWordModel<PoissonUniformWordModel>, FreqBinner>* tmodel;  // translation distributions
+                      // (model English word | French word)
+  const WordID kX;
+};
+
+#endif