From 4b38556c88c739de82b9c298261a262ec620280e Mon Sep 17 00:00:00 2001 From: Chris Dyer Date: Mon, 16 Apr 2012 18:20:33 -0400 Subject: rst sampler --- rst_parser/dep_training.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 rst_parser/dep_training.h (limited to 'rst_parser/dep_training.h') diff --git a/rst_parser/dep_training.h b/rst_parser/dep_training.h new file mode 100644 index 00000000..73ffd298 --- /dev/null +++ b/rst_parser/dep_training.h @@ -0,0 +1,17 @@ +#ifndef _DEP_TRAINING_H_ +#define _DEP_TRAINING_H_ + +#include +#include +#include "arc_factored.h" +#include "weights.h" + +struct TrainingInstance { + TaggedSentence ts; + EdgeSubset tree; + SparseVector features; + // reads a "Jsent" formatted dependency file + static void ReadTraining(const std::string& fname, std::vector* corpus, int rank = 0, int size = 1); +}; + +#endif -- cgit v1.2.3 From f4570f262c10534b335568e1d69fb3a8dfbf38ed Mon Sep 17 00:00:00 2001 From: Chris Dyer Date: Wed, 18 Apr 2012 22:37:08 -0400 Subject: refactor --- rst_parser/dep_training.cc | 70 ++++++++++++++++++++++++++++------------------ rst_parser/dep_training.h | 4 ++- rst_parser/mst_train.cc | 2 +- rst_parser/rst_train.cc | 2 +- 4 files changed, 48 insertions(+), 30 deletions(-) (limited to 'rst_parser/dep_training.h') diff --git a/rst_parser/dep_training.cc b/rst_parser/dep_training.cc index de431ebc..e26505ec 100644 --- a/rst_parser/dep_training.cc +++ b/rst_parser/dep_training.cc @@ -10,11 +10,51 @@ using namespace std; -void TrainingInstance::ReadTraining(const string& fname, vector* corpus, int rank, int size) { +static void ParseInstance(const string& line, int start, TrainingInstance* out, int lc = 0) { + picojson::value obj; + string err; + picojson::parse(obj, line.begin() + start, line.end(), &err); + if (err.size() > 0) { cerr << "JSON parse error in " << lc << ": " << err << endl; abort(); } + TrainingInstance& cur = *out; + TaggedSentence& ts = cur.ts; + EdgeSubset& tree = cur.tree; + assert(obj.is()); + const picojson::object& d = obj.get(); + const picojson::array& ta = d.find("tokens")->second.get(); + for (unsigned i = 0; i < ta.size(); ++i) { + ts.words.push_back(TD::Convert(ta[i].get()[0].get())); + ts.pos.push_back(TD::Convert(ta[i].get()[1].get())); + } + if (d.find("deps") != d.end()) { + const picojson::array& da = d.find("deps")->second.get(); + for (unsigned i = 0; i < da.size(); ++i) { + const picojson::array& thm = da[i].get(); + // get dep type here + short h = thm[2].get(); + short m = thm[1].get(); + if (h < 0) + tree.roots.push_back(m); + else + tree.h_m_pairs.push_back(make_pair(h,m)); + } + } + //cerr << TD::GetString(ts.words) << endl << TD::GetString(ts.pos) << endl << tree << endl; +} + +bool TrainingInstance::ReadInstance(std::istream* in, TrainingInstance* instance) { + string line; + if (!getline(*in, line)) return false; + size_t pos = line.rfind('\t'); + assert(pos != string::npos); + static int lc = 0; ++lc; + ParseInstance(line, pos + 1, instance, lc); + return true; +} + +void TrainingInstance::ReadTrainingCorpus(const string& fname, vector* corpus, int rank, int size) { ReadFile rf(fname); istream& in = *rf.stream(); string line; - string err; int lc = 0; bool flag = false; while(getline(in, line)) { @@ -24,32 +64,8 @@ void TrainingInstance::ReadTraining(const string& fname, vector 0) { cerr << "JSON parse error in " << lc << ": " << err << endl; abort(); } corpus->push_back(TrainingInstance()); - TrainingInstance& cur = corpus->back(); - TaggedSentence& ts = cur.ts; - EdgeSubset& tree = cur.tree; - assert(obj.is()); - const picojson::object& d = obj.get(); - const picojson::array& ta = d.find("tokens")->second.get(); - for (unsigned i = 0; i < ta.size(); ++i) { - ts.words.push_back(TD::Convert(ta[i].get()[0].get())); - ts.pos.push_back(TD::Convert(ta[i].get()[1].get())); - } - const picojson::array& da = d.find("deps")->second.get(); - for (unsigned i = 0; i < da.size(); ++i) { - const picojson::array& thm = da[i].get(); - // get dep type here - short h = thm[2].get(); - short m = thm[1].get(); - if (h < 0) - tree.roots.push_back(m); - else - tree.h_m_pairs.push_back(make_pair(h,m)); - } - //cerr << TD::GetString(ts.words) << endl << TD::GetString(ts.pos) << endl << tree << endl; + ParseInstance(line, pos + 1, &corpus->back(), lc); } if (flag) cerr << "\nRead " << lc << " training instances\n"; } diff --git a/rst_parser/dep_training.h b/rst_parser/dep_training.h index 73ffd298..3eeee22e 100644 --- a/rst_parser/dep_training.h +++ b/rst_parser/dep_training.h @@ -1,6 +1,7 @@ #ifndef _DEP_TRAINING_H_ #define _DEP_TRAINING_H_ +#include #include #include #include "arc_factored.h" @@ -11,7 +12,8 @@ struct TrainingInstance { EdgeSubset tree; SparseVector features; // reads a "Jsent" formatted dependency file - static void ReadTraining(const std::string& fname, std::vector* corpus, int rank = 0, int size = 1); + static bool ReadInstance(std::istream* in, TrainingInstance* instance); // returns false at EOF + static void ReadTrainingCorpus(const std::string& fname, std::vector* corpus, int rank = 0, int size = 1); }; #endif diff --git a/rst_parser/mst_train.cc b/rst_parser/mst_train.cc index 0709e7c9..e414f450 100644 --- a/rst_parser/mst_train.cc +++ b/rst_parser/mst_train.cc @@ -74,7 +74,7 @@ int main(int argc, char** argv) { InitCommandLine(argc, argv, &conf); ArcFeatureFunctions ffs; vector corpus; - TrainingInstance::ReadTraining(conf["training_data"].as(), &corpus, rank, size); + TrainingInstance::ReadTrainingCorpus(conf["training_data"].as(), &corpus, rank, size); vector forests(corpus.size()); SparseVector empirical; bool flag = false; diff --git a/rst_parser/rst_train.cc b/rst_parser/rst_train.cc index 16673cdc..9b730f3d 100644 --- a/rst_parser/rst_train.cc +++ b/rst_parser/rst_train.cc @@ -52,7 +52,7 @@ int main(int argc, char** argv) { vector corpus; ArcFeatureFunctions ffs; GlobalFeatureFunctions gff; - TrainingInstance::ReadTraining(conf["training_data"].as(), &corpus); + TrainingInstance::ReadTrainingCorpus(conf["training_data"].as(), &corpus); vector forests(corpus.size()); vector zs(corpus.size()); SparseVector empirical; -- cgit v1.2.3