Created
April 21, 2013 14:43
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#!/usr/local/bin/perl | |
use strict; | |
use warnings; | |
main(); | |
sub main { | |
if (@ARGV < 1) { | |
print STDERR "Usage: $0 input_f\n"; | |
exit 1; | |
} | |
my $input_f = shift @ARGV; | |
my $qid_rel_hash = {}; | |
open(my $ifh , '<', $input_f) or die $!; | |
while (my $line = <$ifh>) { | |
chomp $line; | |
my ($rel, $qid, $features) = parse_line($line); | |
push @{$qid_rel_hash->{$qid}{$rel}}, $features; | |
} | |
close($ifh); | |
foreach my $qid (sort {$a <=> $b} keys %$qid_rel_hash) { | |
my @rel_array = sort {$b <=> $a} keys %{$qid_rel_hash->{$qid}}; | |
foreach my $i (0..(int(@rel_array)-2)) { | |
my $rel1 = $rel_array[$i]; | |
foreach my $j (($i+1)..(int(@rel_array)-1)) { | |
my $rel2 = $rel_array[$j]; | |
foreach my $f1 (@{$qid_rel_hash->{$qid}{$rel1}}) { | |
foreach my $f2 (@{$qid_rel_hash->{$qid}{$rel2}}) { | |
my $diff = diff_features($f1, $f2); | |
my $diff_line = make_line($qid, 1, $diff); | |
print $diff_line, "\n" if $diff_line; | |
} | |
} | |
} | |
} | |
} | |
} | |
sub parse_line { | |
my ($line) = @_; | |
my ($subline) = split(/#/, $line); | |
$line = $subline; | |
my ($rel, $qkv, @rest) = split(/ /, $line); | |
my (undef, $qid) = split(/:/, $qkv); | |
my $features = {}; | |
foreach my $kv (@rest) { | |
my ($k, $v) = split(/:/, $kv); | |
$features->{$k} = $v; | |
} | |
($rel, $qid, $features); | |
} | |
sub make_line { | |
my ($qid, $rel, $features) = @_; | |
my @tmp_array = map {join(":", $_, sprintf("%.6f", $features->{$_}))} | |
grep {$features->{$_}} | |
sort {$a <=> $b} keys %$features; | |
return unless @tmp_array; | |
join(" ", $rel, "qid:$qid", @tmp_array); | |
} | |
sub diff_features { | |
my ($f1, $f2) = @_; | |
my $diff = {}; | |
foreach my $k (keys %$f1) { | |
$diff->{$k} = $f1->{$k}; | |
} | |
foreach my $k (keys %$f2) { | |
$diff->{$k} -= $f2->{$k}; | |
} | |
$diff; | |
} |
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