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#!/usr/bin/perl
# Copyright (C) 2003 MySQL AB
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
die "Use: $0 eval_output qrels_file\n" unless @ARGV==2;
open(EOUT,$eout=shift) || die "Cannot open $eout: $!";
open(RELJ,$relj=shift) || die "Cannot open $relj: $!";
$_=<EOUT>;
die "$eout must start with a number!\n "unless /^[1-9][0-9]*\n/;
$ndocs=$_+0;
$qid=0;
$relj_str=<RELJ>;
$eout_str=<EOUT>;
while(!eof(RELJ) || !eof(EOUT)) {
++$qid;
%dq=();
$A=$B=$AB=0;
$Ravg=$Pavg=0;
while($relj_str =~ /^0*$qid\s+(\d+)/) {
++$A;
$dq{$1+0}=1;
last unless $relj_str=<RELJ>;
}
# Favg measure = 1/(a/Pavg+(1-a)/Ravg)
sub Favg { my $a=shift; $Pavg*$Ravg ? 1/($a/$Pavg+(1-$a)/$Ravg) : 0; }
# F0 : a=0 -- ignore precision
# F5 : a=0.5
# F1 : a=1 -- ignore recall
while($eout_str =~ /^$qid\s+(\d+)\s+(\d+(?:\.\d+)?)/) {
$B++;
$AB++ if $dq{$1+0};
$Ravg+=$AB;
$Pavg+=$AB/$B;
last unless $eout_str=<EOUT>;
}
next unless $A;
$Ravg/=$B*$A if $B;
$Pavg/=$B if $B;
printf "%5d %1.12f %1.12f %1.12f\n", $qid, Favg(0),Favg(0.5),Favg(1);
}
exit 0;
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