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authorChris Dyer <cdyer@cs.cmu.edu>2012-10-11 14:06:32 -0400
committerChris Dyer <cdyer@cs.cmu.edu>2012-10-11 14:06:32 -0400
commit9339c80d465545aec5a6dccfef7c83ca715bf11f (patch)
tree64c56d558331edad1db3832018c80e799551c39a /gi/pyp-topics/src/pyp-topics.hh
parent438dac41810b7c69fa10203ac5130d20efa2da9f (diff)
parentafd7da3b2338661657ad0c4e9eec681e014d37bf (diff)
Merge branch 'master' of https://github.com/redpony/cdec
Diffstat (limited to 'gi/pyp-topics/src/pyp-topics.hh')
-rw-r--r--gi/pyp-topics/src/pyp-topics.hh98
1 files changed, 0 insertions, 98 deletions
diff --git a/gi/pyp-topics/src/pyp-topics.hh b/gi/pyp-topics/src/pyp-topics.hh
deleted file mode 100644
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--- a/gi/pyp-topics/src/pyp-topics.hh
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@@ -1,98 +0,0 @@
-#ifndef PYP_TOPICS_HH
-#define PYP_TOPICS_HH
-
-#include <vector>
-#include <iostream>
-#include <boost/ptr_container/ptr_vector.hpp>
-
-#include <boost/random/uniform_real.hpp>
-#include <boost/random/variate_generator.hpp>
-#include <boost/random/mersenne_twister.hpp>
-
-#include "pyp.hh"
-#include "corpus.hh"
-#include "workers.hh"
-
-class PYPTopics {
-public:
- typedef std::vector<int> DocumentTopics;
- typedef std::vector<DocumentTopics> CorpusTopics;
- typedef long double F;
-
-public:
- PYPTopics(int num_topics, bool use_topic_pyp=false, unsigned long seed = 0,
- int max_threads = 1, int num_jobs = 1)
- : m_num_topics(num_topics), m_word_pyps(1),
- m_topic_pyp(0.5,1.0,seed), m_use_topic_pyp(use_topic_pyp),
- m_seed(seed),
- uni_dist(0,1), rng(seed == 0 ? (unsigned long)this : seed),
- rnd(rng, uni_dist), max_threads(max_threads), num_jobs(num_jobs) {}
-
- void sample_corpus(const Corpus& corpus, int samples,
- int freq_cutoff_start=0, int freq_cutoff_end=0,
- int freq_cutoff_interval=0,
- int max_contexts_per_document=0,
- F temp_start=1.0, F temp_end=1.0);
-
- int sample(const DocumentId& doc, const Term& term, F inv_temp=1.0);
- std::pair<int,F> max(const DocumentId& doc, const Term& term) const;
- std::pair<int,F> max(const DocumentId& doc) const;
- int max_topic() const;
-
- void set_backoff(const std::string& filename) {
- m_backoff.reset(new TermBackoff);
- m_backoff->read(filename);
- m_word_pyps.clear();
- m_word_pyps.resize(m_backoff->order(), PYPs());
- }
- void set_backoff(TermBackoffPtr backoff) {
- m_backoff = backoff;
- m_word_pyps.clear();
- m_word_pyps.resize(m_backoff->order(), PYPs());
- }
-
- F prob(const Term& term, int topic, int level=0) const;
- void decrement(const Term& term, int topic, int level=0);
- void increment(const Term& term, int topic, int level=0);
-
- F log_likelihood() const;
-
- std::ostream& print_document_topics(std::ostream& out) const;
- std::ostream& print_topic_terms(std::ostream& out) const;
-
-private:
- F word_pyps_p0(const Term& term, int topic, int level) const;
-
- int m_num_topics;
- F m_term_p0, m_topic_p0, m_backoff_p0;
-
- CorpusTopics m_corpus_topics;
- typedef boost::ptr_vector< PYP<int> > PYPs;
- PYPs m_document_pyps;
- std::vector<PYPs> m_word_pyps;
- PYP<int> m_topic_pyp;
- bool m_use_topic_pyp;
-
- unsigned long m_seed;
-
- typedef boost::mt19937 base_generator_type;
- typedef boost::uniform_real<> uni_dist_type;
- typedef boost::variate_generator<base_generator_type&, uni_dist_type> gen_type;
-
- uni_dist_type uni_dist;
- base_generator_type rng; //this gets the seed
- gen_type rnd; //instantiate: rnd(rng, uni_dist)
- //call: rnd() generates uniform on [0,1)
-
- typedef boost::function<F()> JobReturnsF;
-
- F hresample_docs(int start, int end); //does i in [start, end)
-
- F hresample_topics();
-
- int max_threads;
- int num_jobs;
- TermBackoffPtr m_backoff;
-};
-
-#endif // PYP_TOPICS_HH