# -*- cperl -*-

=head1 NAME

nat-ipfp - one of the three possible EM-Algorithm implementations of NATools

=head1 SYNOPSIS

 nat-ipfp <steps> <crp1> <crp2> <mat-in> <mat-out>

=head1 DESCRIPTION

This program is not intended to be used independently. It is used
internally by C<nat-these> script.

IPFP is an iterative method for the EM-Algorithm. To use it, you must
supply the number of times the method should iterate, both corpus
files (created by C<nat-pre>), the sparse co-ocurrence matrix file
(created by C<nat-initmat>) and the file name where the enhanced
matrix should be placed.

=head1 SEE ALSO

NATools, nat-samplea, nat-sampleb

=head1 COPYRIGHT

 Copyright (C)2002-2003 Alberto Simoes and Jose Joao Almeida
 Copyright (C)1998 Djoerd Hiemstra

 GNU GENERAL PUBLIC LICENSE (LGPL) Version 2 (June 1991)

=cut