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WordNet::Similarity::PathFinder 1.04

  Date Added: November 11, 2010  |  Visits: 757

WordNet::Similarity::PathFinder

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WordNet::Similarity::PathFinder is a Perl module to implement path finding methods (by node counting) for WordNet::Similarity measures of semantic relatedness. SYNOPSIS use WordNet::QueryData; my $wn = WordNet::QueryData->new; use WordNet::Similarity::PathFinder; my $obj = WordNet::Similarity::PathFinder->new ($wn); my $result = $obj->parseWps($wps1, $wps2); my @paths = $obj->getShortestPath("dog#n#1", "cat#n#1", "n", "wps"); my ($length, $path) = @{shift @paths}; defined $path or die "No path between synsets"; my @paths = $obj->getAllPaths("worship#v#1", "adore#v#1", "v", "wps"); my ($length, $path) = @{shift @paths}; defined $path or die "No path between synsets"; my @paths = $obj->getShortestPath("02895418", "02724985", "n", "offset"); my ($length, $path) = @{shift @paths}; defined $path or die "No path between synsets"; Introduction This class is derived from (i.e., is a sub-class of) WordNet::Similarity. The methods in this module are useful for finding paths between concepts in WordNets is-a taxonomies. Concept A is-a concept B if, and only if, B is a hypernym of A or A is in the hypernym tree of B. N.B., only nouns and verbs have hypernyms. The methods that find path lengths (such as getShortestPath() and getAllPaths() compute the lengths using node-counting not edge-counting. In general, the length of a path using node-counting will always be one more than the length using edge-counting. For example, if concept A is a hyponym of concept B, then the path length between A and B using node-counting is 2, but the length using edge-counting is 1. Likewise, the path between A and A is 1 using node-counting and 0 using edge-counting..

Requirements: No special requirements
Platforms: Linux
Keyword: Length Libraries Methods Path Path Finding Pathfinder Paths Perl Module Programming Using Wordnet Wordnetsimilaritypathfinder
Users rating: 0/10

License: Freeware Size: 645.12 KB
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