Dear Monks, my codes run but it is extremely slow. any suggestion to improve it? 

use strict;

use XML::Parser;

use XML::XPath;

use Lingua::StopWords qw( getStopWords );

my $stopwords = getStopWords('en');



my $file = $ARGV[0];

my $xp = XML::XPath->new(filename=>$file);


for (my $n = 1; $n <= 600; $n++) {


my $textnodeset = $xp->find('//pair[@id = '.$n.']/tAnnotation/tree/nod
+e/word/attribute[@name="token"]');

my @texts;

if (my @textnodelist = $textnodeset->get_nodelist) {

@texts = map($_->string_value, @textnodelist);}




my %seent;
my @uniqt = grep !$seent{$_}++, @texts;

my $hyponodeset = $xp->find('//pair[@id = '.$n.']/hAnnotation/tree/nod
+e/word/attribute[@name="token"]');


my @hypos;

if (my @hyponodelist = $hyponodeset->get_nodelist) {

@hypos = map($_->string_value, @hyponodelist);}


my %seenh;
my @uniqh = grep !$seenh{$_}++, @hypos;


my @termst = grep { ! $stopwords->{ $_ } } @uniqt;


my @termsh = grep { ! $stopwords->{ $_ } } @uniqh;



for my $i (0 .. $#termst) {
   for my $j ( 0 .. $#termsh) {
  print "$termst[$i] $termsh[$j]\n";
}}
}

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my input is an xml file and my output is a pairs of extracted items per line. any idea to improve? thanks,.

In reply to my xml xpath is too slow. by Anonymous Monk

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