major restructure of the training code

4 files changed, 0 insertions, 761 deletions

diff --git a/minrisk/Makefile.am b/minrisk/Makefile.am
deleted file mode 100644
index a24f047c..00000000
--- a/minrisk/Makefile.am
+++ /dev/null
@@ -1,6 +0,0 @@
-bin_PROGRAMS = minrisk_optimize
-
-minrisk_optimize_SOURCES = minrisk_optimize.cc
-minrisk_optimize_LDADD = $(top_srcdir)/training/libtraining.a $(top_srcdir)/decoder/libcdec.a $(top_srcdir)/mteval/libmteval.a $(top_srcdir)/utils/libutils.a $(top_srcdir)/training/liblbfgs/liblbfgs.a -lz
-
-AM_CPPFLAGS = -W -Wall $(GTEST_CPPFLAGS) -I$(top_srcdir)/utils -I$(top_srcdir)/decoder -I$(top_srcdir)/mteval -I$(top_srcdir)/training
diff --git a/minrisk/minrisk.pl b/minrisk/minrisk.pl
deleted file mode 100755
index d05b9595..00000000
--- a/minrisk/minrisk.pl
+++ /dev/null
@@ -1,540 +0,0 @@
-#!/usr/bin/env perl
-use strict;
-my @ORIG_ARGV=@ARGV;
-use Cwd qw(getcwd);
-my $SCRIPT_DIR; BEGIN { use Cwd qw/ abs_path /; use File::Basename; $SCRIPT_DIR = dirname(abs_path($0)); push @INC, $SCRIPT_DIR, "$SCRIPT_DIR/../environment"; }
-
-# Skip local config (used for distributing jobs) if we're running in local-only mode
-use LocalConfig;
-use Getopt::Long;
-use IPC::Open2;
-use POSIX ":sys_wait_h";
-my $QSUB_CMD = qsub_args(mert_memory());
-my $default_jobs = env_default_jobs();
-
-my $VEST_DIR="$SCRIPT_DIR/../dpmert";
-require "$VEST_DIR/libcall.pl";
-
-# Default settings
-my $srcFile;
-my $refFiles;
-my $bin_dir = $SCRIPT_DIR;
-die "Bin directory $bin_dir missing/inaccessible" unless -d $bin_dir;
-my $FAST_SCORE="$bin_dir/../mteval/fast_score";
-die "Can't execute $FAST_SCORE" unless -x $FAST_SCORE;
-my $MAPINPUT = "$bin_dir/minrisk_generate_input.pl";
-my $MAPPER = "$bin_dir/minrisk_optimize";
-my $parallelize = "$VEST_DIR/parallelize.pl";
-my $libcall = "$VEST_DIR/libcall.pl";
-my $sentserver = "$VEST_DIR/sentserver";
-my $sentclient = "$VEST_DIR/sentclient";
-my $LocalConfig = "$SCRIPT_DIR/../environment/LocalConfig.pm";
-
-my $SCORER = $FAST_SCORE;
-die "Can't find $MAPPER" unless -x $MAPPER;
-my $cdec = "$bin_dir/../decoder/cdec";
-die "Can't find decoder in $cdec" unless -x $cdec;
-die "Can't find $parallelize" unless -x $parallelize;
-die "Can't find $libcall" unless -e $libcall;
-my $decoder = $cdec;
-my $lines_per_mapper = 30;
-my $iteration = 1;
-my $best_weights;
-my $psi = 1;
-my $default_max_iter = 30;
-my $max_iterations = $default_max_iter;
-my $jobs = $default_jobs;   # number of decode nodes
-my $pmem = "4g";
-my $disable_clean = 0;
-my %seen_weights;
-my $help = 0;
-my $epsilon = 0.0001;
-my $dryrun = 0;
-my $last_score = -10000000;
-my $metric = "ibm_bleu";
-my $dir;
-my $iniFile;
-my $weights;
-my $use_make = 1;  # use make to parallelize
-my $useqsub = 0;
-my $initial_weights;
-my $pass_suffix = '';
-my $cpbin=1;
-
-# regularization strength
-my $tune_regularizer = 0;
-my $reg = 500;
-my $reg_previous = 5000;
-my $dont_accum = 0;
-
-# Process command-line options
-Getopt::Long::Configure("no_auto_abbrev");
-if (GetOptions(
-	"jobs=i" => \$jobs,
-	"dont-clean" => \$disable_clean,
-	"dont-accumulate" => \$dont_accum,
-	"pass-suffix=s" => \$pass_suffix,
-        "qsub" => \$useqsub,
-	"dry-run" => \$dryrun,
-	"epsilon=s" => \$epsilon,
-	"help" => \$help,
-        "weights=s" => \$initial_weights,
-	"reg=f" => \$reg,
-	"use-make=i" => \$use_make,
-	"max-iterations=i" => \$max_iterations,
-	"pmem=s" => \$pmem,
-        "cpbin!" => \$cpbin,
-	"ref-files=s" => \$refFiles,
-	"metric=s" => \$metric,
-	"source-file=s" => \$srcFile,
-	"workdir=s" => \$dir,
-) == 0 || @ARGV!=1 || $help) {
-	print_help();
-	exit;
-}
-
-die "--tune-regularizer is no longer supported with --reg-previous and --reg. Please tune manually.\n" if $tune_regularizer;
-
-if ($useqsub) {
-  $use_make = 0;
-  die "LocalEnvironment.pm does not have qsub configuration for this host. Cannot run with --qsub!\n" unless has_qsub();
-}
-
-my @missing_args = ();
-if (!defined $srcFile) { push @missing_args, "--source-file"; }
-if (!defined $refFiles) { push @missing_args, "--ref-files"; }
-if (!defined $initial_weights) { push @missing_args, "--weights"; }
-die "Please specify missing arguments: " . join (', ', @missing_args) . "\n" if (@missing_args);
-
-if ($metric =~ /^(combi|ter)$/i) {
-  $lines_per_mapper = 5;
-}
-
-($iniFile) = @ARGV;
-
-
-sub write_config;
-sub enseg;
-sub print_help;
-
-my $nodelist;
-my $host =check_output("hostname"); chomp $host;
-my $bleu;
-my $interval_count = 0;
-my $logfile;
-my $projected_score;
-
-# used in sorting scores
-my $DIR_FLAG = '-r';
-if ($metric =~ /^ter$|^aer$/i) {
-  $DIR_FLAG = '';
-}
-
-my $refs_comma_sep = get_comma_sep_refs('r',$refFiles);
-
-unless ($dir){
-	$dir = "minrisk";
-}
-unless ($dir =~ /^\//){  # convert relative path to absolute path
-	my $basedir = check_output("pwd");
-	chomp $basedir;
-	$dir = "$basedir/$dir";
-}
-
-
-# Initializations and helper functions
-srand;
-
-my @childpids = ();
-my @cleanupcmds = ();
-
-sub cleanup {
-	print STDERR "Cleanup...\n";
-	for my $pid (@childpids){ unchecked_call("kill $pid"); }
-	for my $cmd (@cleanupcmds){ unchecked_call("$cmd"); }
-	exit 1;
-};
-# Always call cleanup, no matter how we exit
-*CORE::GLOBAL::exit = 
-    sub{ cleanup(); }; 
-$SIG{INT} = "cleanup";
-$SIG{TERM} = "cleanup";
-$SIG{HUP} = "cleanup";
-
-my $decoderBase = check_output("basename $decoder"); chomp $decoderBase;
-my $newIniFile = "$dir/$decoderBase.ini";
-my $inputFileName = "$dir/input";
-my $user = $ENV{"USER"};
-# process ini file
--e $iniFile || die "Error: could not open $iniFile for reading\n";
-open(INI, $iniFile);
-
-use File::Basename qw(basename);
-#pass bindir, refs to vars holding bin
-sub modbin {
-    local $_;
-    my $bindir=shift;
-    check_call("mkdir -p $bindir");
-    -d $bindir || die "couldn't make bindir $bindir";
-    for (@_) {
-        my $src=$$_;
-        $$_="$bindir/".basename($src);
-        check_call("cp -p $src $$_");
-    }
-}
-sub dirsize {
-    opendir ISEMPTY,$_[0];
-    return scalar(readdir(ISEMPTY))-1;
-}
-my @allweights;
-if ($dryrun){
-	write_config(*STDERR);
-	exit 0;
-} else {
-	if (-e $dir && dirsize($dir)>1 && -e "$dir/hgs" ){ # allow preexisting logfile, binaries, but not dist-pro.pl outputs
-	  die "ERROR: working dir $dir already exists\n\n";
-	} else {
-		-e $dir || mkdir $dir;
-		mkdir "$dir/hgs";
-        modbin("$dir/bin",\$LocalConfig,\$cdec,\$SCORER,\$MAPINPUT,\$MAPPER,\$parallelize,\$sentserver,\$sentclient,\$libcall) if $cpbin;
-    mkdir "$dir/scripts";
-        my $cmdfile="$dir/rerun-pro.sh";
-        open CMD,'>',$cmdfile;
-        print CMD "cd ",&getcwd,"\n";
-#        print CMD &escaped_cmdline,"\n"; #buggy - last arg is quoted.
-        my $cline=&cmdline."\n";
-        print CMD $cline;
-        close CMD;
-        print STDERR $cline;
-        chmod(0755,$cmdfile);
-	check_call("cp $initial_weights $dir/weights.0");
-	die "Can't find weights.0" unless (-e "$dir/weights.0");
-	}
-	write_config(*STDERR);
-}
-
-
-# Generate initial files and values
-check_call("cp $iniFile $newIniFile");
-$iniFile = $newIniFile;
-
-my $newsrc = "$dir/dev.input";
-enseg($srcFile, $newsrc);
-$srcFile = $newsrc;
-my $devSize = 0;
-open F, "<$srcFile" or die "Can't read $srcFile: $!";
-while(<F>) { $devSize++; }
-close F;
-
-unless($best_weights){ $best_weights = $weights; }
-unless($projected_score){ $projected_score = 0.0; }
-$seen_weights{$weights} = 1;
-my $kbest = "$dir/kbest";
-if ($dont_accum) {
-  $kbest = '';
-} else {
-  check_call("mkdir -p $kbest");
-  $kbest = "--kbest_repository $kbest";
-}
-
-my $random_seed = int(time / 1000);
-my $lastWeightsFile;
-my $lastPScore = 0;
-# main optimization loop
-while (1){
-	print STDERR "\n\nITERATION $iteration\n==========\n";
-
-	if ($iteration > $max_iterations){
-		print STDERR "\nREACHED STOPPING CRITERION: Maximum iterations\n";
-		last;
-	}
-	# iteration-specific files
-	my $runFile="$dir/run.raw.$iteration";
-	my $onebestFile="$dir/1best.$iteration";
-	my $logdir="$dir/logs.$iteration";
-	my $decoderLog="$logdir/decoder.sentserver.log.$iteration";
-	my $scorerLog="$logdir/scorer.log.$iteration";
-	check_call("mkdir -p $logdir");
-
-
-	#decode
-	print STDERR "RUNNING DECODER AT ";
-	print STDERR unchecked_output("date");
-	my $im1 = $iteration - 1;
-	my $weightsFile="$dir/weights.$im1";
-        push @allweights, "-w $dir/weights.$im1";
-        `rm -f $dir/hgs/*.gz`;
-	my $decoder_cmd = "$decoder -c $iniFile --weights$pass_suffix $weightsFile -O $dir/hgs";
-	my $pcmd;
-	if ($use_make) {
-		$pcmd = "cat $srcFile | $parallelize --use-fork -p $pmem -e $logdir -j $jobs --";
-	} else {
-		$pcmd = "cat $srcFile | $parallelize -p $pmem -e $logdir -j $jobs --";
-	}
-	my $cmd = "$pcmd $decoder_cmd 2> $decoderLog 1> $runFile";
-	print STDERR "COMMAND:\n$cmd\n";
-	check_bash_call($cmd);
-        my $num_hgs;
-        my $num_topbest;
-        my $retries = 0;
-	while($retries < 5) {
-	    $num_hgs = check_output("ls $dir/hgs/*.gz | wc -l");
-	    $num_topbest = check_output("wc -l < $runFile");
-	    print STDERR "NUMBER OF HGs: $num_hgs\n";
-	    print STDERR "NUMBER OF TOP-BEST HYPs: $num_topbest\n";
-	    if($devSize == $num_hgs && $devSize == $num_topbest) {
-		last;
-	    } else {
-		print STDERR "Incorrect number of hypergraphs or topbest. Waiting for distributed filesystem and retrying...\n";
-		sleep(3);
-	    }
-	    $retries++;
-	}
-	die "Dev set contains $devSize sentences, but we don't have topbest and hypergraphs for all these! Decoder failure? Check $decoderLog\n" if ($devSize != $num_hgs || $devSize != $num_topbest);
-	my $dec_score = check_output("cat $runFile | $SCORER $refs_comma_sep -m $metric");
-	chomp $dec_score;
-	print STDERR "DECODER SCORE: $dec_score\n";
-
-	# save space
-	check_call("gzip -f $runFile");
-	check_call("gzip -f $decoderLog");
-
-	# run optimizer
-	print STDERR "RUNNING OPTIMIZER AT ";
-	print STDERR unchecked_output("date");
-	print STDERR " - GENERATE TRAINING EXEMPLARS\n";
-	my $mergeLog="$logdir/prune-merge.log.$iteration";
-
-	my $score = 0;
-	my $icc = 0;
-	my $inweights="$dir/weights.$im1";
-	my $outweights="$dir/weights.$iteration";
-	$cmd="$MAPINPUT $dir/hgs > $dir/agenda.$im1";
-	print STDERR "COMMAND:\n$cmd\n";
-	check_call($cmd);
-	$cmd="$MAPPER $refs_comma_sep -m $metric -i $dir/agenda.$im1 $kbest -w $inweights > $outweights";
-	check_call($cmd);
-	$lastWeightsFile = $outweights;
-	$iteration++;
-	`rm hgs/*.gz`;
-	print STDERR "\n==========\n";
-}
-
-print STDERR "\nFINAL WEIGHTS: $lastWeightsFile\n(Use -w <this file> with the decoder)\n\n";
-
-print STDOUT "$lastWeightsFile\n";
-
-exit 0;
-
-sub get_lines {
-  my $fn = shift @_;
-  open FL, "<$fn" or die "Couldn't read $fn: $!";
-  my $lc = 0;
-  while(<FL>) { $lc++; }
-  return $lc;
-}
-
-sub get_comma_sep_refs {
-  my ($r,$p) = @_;
-  my $o = check_output("echo $p");
-  chomp $o;
-  my @files = split /\s+/, $o;
-  return "-$r " . join(" -$r ", @files);
-}
-
-sub read_weights_file {
-  my ($file) = @_;
-  open F, "<$file" or die "Couldn't read $file: $!";
-  my @r = ();
-  my $pm = -1;
-  while(<F>) {
-    next if /^#/;
-    next if /^\s*$/;
-    chomp;
-    if (/^(.+)\s+(.+)$/) {
-      my $m = $1;
-      my $w = $2;
-      die "Weights out of order: $m <= $pm" unless $m > $pm;
-      push @r, $w;
-    } else {
-      warn "Unexpected feature name in weight file: $_";
-    }
-  }
-  close F;
-  return join ' ', @r;
-}
-
-# subs
-sub write_config {
-	my $fh = shift;
-	my $cleanup = "yes";
-	if ($disable_clean) {$cleanup = "no";}
-
-	print $fh "\n";
-	print $fh "DECODER:          $decoder\n";
-	print $fh "INI FILE:         $iniFile\n";
-	print $fh "WORKING DIR:      $dir\n";
-	print $fh "SOURCE (DEV):     $srcFile\n";
-	print $fh "REFS (DEV):       $refFiles\n";
-	print $fh "EVAL METRIC:      $metric\n";
-	print $fh "MAX ITERATIONS:   $max_iterations\n";
-	print $fh "JOBS:             $jobs\n";
-	print $fh "HEAD NODE:        $host\n";
-	print $fh "PMEM (DECODING):  $pmem\n";
-	print $fh "CLEANUP:          $cleanup\n";
-}
-
-sub update_weights_file {
-  my ($neww, $rfn, $rpts) = @_;
-  my @feats = @$rfn;
-  my @pts = @$rpts;
-  my $num_feats = scalar @feats;
-  my $num_pts = scalar @pts;
-  die "$num_feats (num_feats) != $num_pts (num_pts)" unless $num_feats == $num_pts;
-  open G, ">$neww" or die;
-  for (my $i = 0; $i < $num_feats; $i++) {
-    my $f = $feats[$i];
-    my $lambda = $pts[$i];
-    print G "$f $lambda\n";
-  }
-  close G;
-}
-
-sub enseg {
-	my $src = shift;
-	my $newsrc = shift;
-	open(SRC, $src);
-	open(NEWSRC, ">$newsrc");
-	my $i=0;
-	while (my $line=<SRC>){
-		chomp $line;
-		if ($line =~ /^\s*<seg/i) {
-		    if($line =~ /id="[0-9]+"/) {
-			print NEWSRC "$line\n";
-		    } else {
-			die "When using segments with pre-generated <seg> tags, you must include a zero-based id attribute";
-		    }
-		} else {
-			print NEWSRC "<seg id=\"$i\">$line</seg>\n";
-		}
-		$i++;
-	}
-	close SRC;
-	close NEWSRC;
-	die "Empty dev set!" if ($i == 0);
-}
-
-sub print_help {
-
-	my $executable = check_output("basename $0"); chomp $executable;
-	print << "Help";
-
-Usage: $executable [options] <ini file>
-
-	$executable [options] <ini file>
-		Runs a complete PRO optimization using the ini file specified.
-
-Required:
-
-	--ref-files <files>
-		Dev set ref files.  This option takes only a single string argument.
-		To use multiple files (including file globbing), this argument should
-		be quoted.
-
-	--source-file <file>
-		Dev set source file.
-
-	--weights <file>
-		Initial weights file (use empty file to start from 0)
-
-General options:
-
-	--help
-		Print this message and exit.
-
-	--dont-accumulate
-		Don't accumulate k-best lists from multiple iterations.
-
-	--max-iterations <M>
-		Maximum number of iterations to run.  If not specified, defaults
-		to $default_max_iter.
-
-	--metric <method>
-		Metric to optimize.
-		Example values: IBM_BLEU, NIST_BLEU, Koehn_BLEU, TER, Combi
-
-	--pass-suffix <S>
-		If the decoder is doing multi-pass decoding, the pass suffix "2",
-		"3", etc., is used to control what iteration of weights is set.
-
-	--workdir <dir>
-		Directory for intermediate and output files.  If not specified, the
-		name is derived from the ini filename.  Assuming that the ini
-		filename begins with the decoder name and ends with ini, the default
-		name of the working directory is inferred from the middle part of
-		the filename.  E.g. an ini file named decoder.foo.ini would have
-		a default working directory name foo.
-
-Regularization options:
-
-	--reg <F>
-		l2 regularization strength [default=500]. The greater this value,
-		the closer to zero the weights will be.
-
-Job control options:
-
-	--jobs <I>
-		Number of decoder processes to run in parallel. [default=$default_jobs]
-
-	--qsub
-		Use qsub to run jobs in parallel (qsub must be configured in
-		environment/LocalEnvironment.pm)
-
-	--pmem <N>
-		Amount of physical memory requested for parallel decoding jobs
-		(used with qsub requests only)
-
-Help
-}
-
-sub convert {
-  my ($str) = @_;
-  my @ps = split /;/, $str;
-  my %dict = ();
-  for my $p (@ps) {
-    my ($k, $v) = split /=/, $p;
-    $dict{$k} = $v;
-  }
-  return %dict;
-}
-
-
-sub cmdline {
-    return join ' ',($0,@ORIG_ARGV);
-}
-
-#buggy: last arg gets quoted sometimes?
-my $is_shell_special=qr{[ \t\n\\><|&;"'`~*?{}$!()]};
-my $shell_escape_in_quote=qr{[\\"\$`!]};
-
-sub escape_shell {
-    my ($arg)=@_;
-    return undef unless defined $arg;
-    if ($arg =~ /$is_shell_special/) {
-        $arg =~ s/($shell_escape_in_quote)/\\$1/g;
-        return "\"$arg\"";
-    }
-    return $arg;
-}
-
-sub escaped_shell_args {
-    return map {local $_=$_;chomp;escape_shell($_)} @_;
-}
-
-sub escaped_shell_args_str {
-    return join ' ',&escaped_shell_args(@_);
-}
-
-sub escaped_cmdline {
-    return "$0 ".&escaped_shell_args_str(@ORIG_ARGV);
-}
diff --git a/minrisk/minrisk_generate_input.pl b/minrisk/minrisk_generate_input.pl
deleted file mode 100755
index b30fc4fd..00000000
--- a/minrisk/minrisk_generate_input.pl
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/usr/bin/perl -w
-use strict;
-
-die "Usage: $0 HG_DIR\n" unless scalar @ARGV == 1;
-my $d = shift @ARGV;
-die "Can't find directory $d" unless -d $d;
-
-opendir(DIR, $d) or die "Can't read $d: $!";
-my @hgs = grep { /\.gz$/ } readdir(DIR);
-closedir DIR;
-
-for my $hg (@hgs) {
-  my $file = $hg;
-  my $id = $hg;
-  $id =~ s/(\.json)?\.gz//;
-  print "$d/$file $id\n";
-}
-
diff --git a/minrisk/minrisk_optimize.cc b/minrisk/minrisk_optimize.cc
deleted file mode 100644
index da8b5260..00000000
--- a/minrisk/minrisk_optimize.cc
+++ /dev/null
@@ -1,197 +0,0 @@
-#include <sstream>
-#include <iostream>
-#include <vector>
-#include <limits>
-
-#include <boost/program_options.hpp>
-#include <boost/program_options/variables_map.hpp>
-
-#include "liblbfgs/lbfgs++.h"
-#include "filelib.h"
-#include "stringlib.h"
-#include "weights.h"
-#include "hg_io.h"
-#include "kbest.h"
-#include "viterbi.h"
-#include "ns.h"
-#include "ns_docscorer.h"
-#include "candidate_set.h"
-#include "risk.h"
-#include "entropy.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()
-        ("reference,r",po::value<vector<string> >(), "[REQD] Reference translation (tokenized text)")
-        ("weights,w",po::value<string>(), "[REQD] Weights files from current iterations")
-        ("input,i",po::value<string>()->default_value("-"), "Input file to map (- is STDIN)")
-        ("evaluation_metric,m",po::value<string>()->default_value("IBM_BLEU"), "Evaluation metric (ibm_bleu, koehn_bleu, nist_bleu, ter, meteor, etc.)")
-        ("temperature,T",po::value<double>()->default_value(0.0), "Temperature parameter for objective (>0 increases the entropy)")
-        ("l1_strength,C",po::value<double>()->default_value(0.0), "L1 regularization strength")
-        ("memory_buffers,M",po::value<unsigned>()->default_value(20), "Memory buffers used in LBFGS")
-        ("kbest_repository,R",po::value<string>(), "Accumulate k-best lists from previous iterations (parameter is path to repository)")
-        ("kbest_size,k",po::value<unsigned>()->default_value(500u), "Top k-hypotheses to extract")
-        ("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("reference")) {
-    cerr << "Please specify one or more references using -r <REF.TXT>\n";
-    flag = true;
-  }
-  if (!conf->count("weights")) {
-    cerr << "Please specify weights using -w <WEIGHTS.TXT>\n";
-    flag = true;
-  }
-  if (flag || conf->count("help")) {
-    cerr << dcmdline_options << endl;
-    exit(1);
-  }
-}
-
-EvaluationMetric* metric = NULL;
-
-struct RiskObjective {
-  explicit RiskObjective(const vector<training::CandidateSet>& tr, const double temp) : training(tr), T(temp) {}
-  double operator()(const vector<double>& x, double* g) const {
-    fill(g, g + x.size(), 0.0);
-    double obj = 0;
-    double h = 0;
-    for (unsigned i = 0; i < training.size(); ++i) {
-      training::CandidateSetRisk risk(training[i], *metric);
-      training::CandidateSetEntropy entropy(training[i]);
-      SparseVector<double> tg, hg;
-      double r = risk(x, &tg);
-      double hh = entropy(x, &hg);
-      h += hh;
-      obj += r;
-      for (SparseVector<double>::iterator it = tg.begin(); it != tg.end(); ++it)
-        g[it->first] += it->second;
-      if (T) {
-        for (SparseVector<double>::iterator it = hg.begin(); it != hg.end(); ++it)
-          g[it->first] += T * it->second;
-      }
-    }
-    cerr << (1-(obj / training.size())) << "  H=" << h << endl;
-    return obj - T * h;
-  }
-  const vector<training::CandidateSet>& training;
-  const double T; // temperature for entropy regularization
-};  
-
-double LearnParameters(const vector<training::CandidateSet>& training,
-                       const double temp, // > 0 increases the entropy, < 0 decreases the entropy
-                       const double C1,
-                       const unsigned memory_buffers,
-                       vector<weight_t>* px) {
-  RiskObjective obj(training, temp);
-  LBFGS<RiskObjective> lbfgs(px, obj, memory_buffers, C1);
-  lbfgs.MinimizeFunction();
-  return 0;
-}
-
-#if 0
-struct FooLoss {
-  double operator()(const vector<double>& x, double* g) const {
-    fill(g, g + x.size(), 0.0);
-    training::CandidateSet cs;
-    training::CandidateSetEntropy cse(cs);
-    cs.cs.resize(3);
-    cs.cs[0].fmap.set_value(FD::Convert("F1"), -1.0);
-    cs.cs[1].fmap.set_value(FD::Convert("F2"), 1.0);
-    cs.cs[2].fmap.set_value(FD::Convert("F1"), 2.0);
-    cs.cs[2].fmap.set_value(FD::Convert("F2"), 0.5);
-    SparseVector<double> xx;
-    double h = cse(x, &xx);
-    cerr << cse(x, &xx) << endl; cerr << "G: " << xx << endl;
-    for (SparseVector<double>::iterator i = xx.begin(); i != xx.end(); ++i)
-      g[i->first] += i->second;
-    return -h;
-  }
-};
-#endif
-
-int main(int argc, char** argv) {
-#if 0
-  training::CandidateSet cs;
-  training::CandidateSetEntropy cse(cs);
-  cs.cs.resize(3);
-  cs.cs[0].fmap.set_value(FD::Convert("F1"), -1.0);
-  cs.cs[1].fmap.set_value(FD::Convert("F2"), 1.0);
-  cs.cs[2].fmap.set_value(FD::Convert("F1"), 2.0);
-  cs.cs[2].fmap.set_value(FD::Convert("F2"), 0.5);
-  FooLoss foo;
-  vector<double> ww(FD::NumFeats()); ww[FD::Convert("F1")] = 1.0;
-  LBFGS<FooLoss> lbfgs(&ww, foo, 100, 0.0);
-  lbfgs.MinimizeFunction();
-  return 1;
-#endif
-  po::variables_map conf;
-  InitCommandLine(argc, argv, &conf);
-  const string evaluation_metric = conf["evaluation_metric"].as<string>();
-
-  metric = EvaluationMetric::Instance(evaluation_metric);
-  DocumentScorer ds(metric, conf["reference"].as<vector<string> >());
-  cerr << "Loaded " << ds.size() << " references for scoring with " << evaluation_metric << endl;
-
-  Hypergraph hg;
-  string last_file;
-  ReadFile in_read(conf["input"].as<string>());
-  string kbest_repo;
-  if (conf.count("kbest_repository")) {
-    kbest_repo = conf["kbest_repository"].as<string>();
-    MkDirP(kbest_repo);
-  }
-  istream &in=*in_read.stream();
-  const unsigned kbest_size = conf["kbest_size"].as<unsigned>();
-  vector<weight_t> weights;
-  const string weightsf = conf["weights"].as<string>();
-  Weights::InitFromFile(weightsf, &weights);
-  double t = 0;
-  for (unsigned i = 0; i < weights.size(); ++i)
-    t += weights[i] * weights[i];
-  if (t > 0) {
-    for (unsigned i = 0; i < weights.size(); ++i)
-      weights[i] /= sqrt(t);
-  }
-  string line, file;
-  vector<training::CandidateSet> kis;
-  cerr << "Loading hypergraphs...\n";
-  while(getline(in, line)) {
-    istringstream is(line);
-    int sent_id;
-    kis.resize(kis.size() + 1);
-    training::CandidateSet& curkbest = kis.back();
-    string kbest_file;
-    if (kbest_repo.size()) {
-      ostringstream os;
-      os << kbest_repo << "/kbest." << sent_id << ".txt.gz";
-      kbest_file = os.str();
-      if (FileExists(kbest_file))
-        curkbest.ReadFromFile(kbest_file);
-    }
-    is >> file >> sent_id;
-    ReadFile rf(file);
-    if (kis.size() % 5 == 0) { cerr << '.'; }
-    if (kis.size() % 200 == 0) { cerr << " [" << kis.size() << "]\n"; }
-    HypergraphIO::ReadFromJSON(rf.stream(), &hg);
-    hg.Reweight(weights);
-    curkbest.AddKBestCandidates(hg, kbest_size, ds[sent_id]);
-    if (kbest_file.size())
-      curkbest.WriteToFile(kbest_file);
-  }
-  cerr << "\nHypergraphs loaded.\n";
-  weights.resize(FD::NumFeats());
-
-  double c1 = conf["l1_strength"].as<double>();
-  double temp = conf["temperature"].as<double>();
-  unsigned m = conf["memory_buffers"].as<unsigned>();
-  LearnParameters(kis, temp, c1, m, &weights);
-  Weights::WriteToFile("-", weights);
-  return 0;
-}
-