From 7cc92b65a3185aa242088d830e166e495674efc9 Mon Sep 17 00:00:00 2001
From: redpony <redpony@ec762483-ff6d-05da-a07a-a48fb63a330f>
Date: Tue, 22 Jun 2010 05:12:27 +0000
Subject: initial checkin

git-svn-id: https://ws10smt.googlecode.com/svn/trunk@2 ec762483-ff6d-05da-a07a-a48fb63a330f
---
 vest/mr_vest_generate_mapper_input.cc | 72 +++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 vest/mr_vest_generate_mapper_input.cc

(limited to 'vest/mr_vest_generate_mapper_input.cc')

diff --git a/vest/mr_vest_generate_mapper_input.cc b/vest/mr_vest_generate_mapper_input.cc
new file mode 100644
index 00000000..c96a61e4
--- /dev/null
+++ b/vest/mr_vest_generate_mapper_input.cc
@@ -0,0 +1,72 @@
+#include <iostream>
+#include <vector>
+
+#include <boost/program_options.hpp>
+#include <boost/program_options/variables_map.hpp>
+
+#include "filelib.h"
+#include "weights.h"
+#include "line_optimizer.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()
+        ("dev_set_size,s",po::value<unsigned int>(),"[REQD] Development set size (# of parallel sentences)")
+        ("forest_repository,r",po::value<string>(),"[REQD] Path to forest repository")
+        ("weights,w",po::value<string>(),"[REQD] Current feature weights file")
+        ("optimize_feature,o",po::value<vector<string> >(), "Feature to optimize (if none specified, all weights listed in the weights file will be optimized)")
+        ("random_directions,d",po::value<unsigned int>()->default_value(20),"Number of random directions to run the line optimizer in")
+        ("help,h", "Help");
+  po::options_description dcmdline_options;
+  dcmdline_options.add(opts);
+  po::store(parse_command_line(argc, argv, dcmdline_options), *conf);
+  bool flag = false;
+  if (conf->count("dev_set_size") == 0) {
+    cerr << "Please specify the size of the development set using -d N\n";
+    flag = true;
+  }
+  if (conf->count("weights") == 0) {
+    cerr << "Please specify the starting-point weights using -w <weightfile.txt>\n";
+    flag = true;
+  }
+  if (conf->count("forest_repository") == 0) {
+    cerr << "Please specify the forest repository location using -r <DIR>\n";
+    flag = true;
+  }
+  if (flag || conf->count("help")) {
+    cerr << dcmdline_options << endl;
+    exit(1);
+  }
+}
+
+int main(int argc, char** argv) {
+  RandomNumberGenerator<boost::mt19937> rng;
+  po::variables_map conf;
+  InitCommandLine(argc, argv, &conf);
+  Weights weights;
+  vector<string> features;
+  weights.InitFromFile(conf["weights"].as<string>(), &features);
+  const string forest_repository = conf["forest_repository"].as<string>();
+  assert(DirectoryExists(forest_repository));
+  SparseVector<double> origin;
+  weights.InitSparseVector(&origin);
+  if (conf.count("optimize_feature") > 0)
+    features=conf["optimize_feature"].as<vector<string> >();
+  vector<SparseVector<double> > axes;
+  vector<int> fids(features.size());
+  for (int i = 0; i < features.size(); ++i)
+    fids[i] = FD::Convert(features[i]);
+  LineOptimizer::CreateOptimizationDirections(
+     fids,
+     conf["random_directions"].as<unsigned int>(),
+     &rng,
+     &axes);
+  int dev_set_size = conf["dev_set_size"].as<unsigned int>();
+  for (int i = 0; i < dev_set_size; ++i)
+    for (int j = 0; j < axes.size(); ++j)
+      cout << forest_repository << '/' << i << ".json.gz " << i << ' ' << origin << ' ' << axes[j] << endl;
+  return 0;
+}
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