NAME
Bag::Similarity - Similarity measures for bags
SYNOPSIS
DESCRIPTION
Bag::Similarity is the base class for similarity measures of bags.
METHODS
All methods can be used as class or object methods.
new
$object = Bag::Similarity->new();
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similarity
my $similarity = $object->similarity($any1,$any1,$width);
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$any can be an arrayref, a hashref or a string. Strings are tokenized into n-grams of width $width.
$width must be integer, or defaults to 1.
from_tokens
my $similarity = $object->from_tokens(['a','b'],['b']);
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from_bags
my $similarity = $object->from_bags(['a'],['b']);
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Croaks if called directly. This method should be implemented in a child module.
intersection
my $intersection_size = $object->intersection(['a'],['b']);
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combined_length
my $set_size_sum = $object->combined_length(['a'],['b']);
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min
my $min_set_size = $object->min(['a'],['b']);
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ngrams
my @monograms = $object->ngrams('abc');
my @bigrams = $object->ngrams('abc',2);
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_any
my $arrayref = $object->_any($any,$width);
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AUTHOR
Helmut Wollmersdorfer <helmut@wollmersdorfer.at>
COPYRIGHT
Copyright 2014-2020 Helmut Wollmersdorfer
LICENSE
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
SEE ALSO