Lingua::EN::NamedEntity - Basic Named Entity Extraction algorithm
use Lingua::EN::NamedEntity; my @entities = extract_entities($some_text);
"Named entities" is the NLP jargon for proper nouns which represent people, places, organisations, and so on. This module provides a very simple way of extracting these from a text. If we run the extract_entities routine on a piece of news coverage of recent UK political events, we should expect to see it return a list of hash references looking like this:
extract_entities
{ entity => 'Mr Howard', class => 'person', scores => { ... }, }, { entity => 'Ministry of Defence', class => 'organisation', ... }, { entity => 'Oxfordshire', class => 'place', ... },
The additional scores hash reference in there breaks down the various possible classes for this entity in an open-ended scale.
scores
The hash also includes the number of occurrences for that entity.
Naturally, the more text you throw at this, the more accurate it becomes.
Pass to <extract_entities> a text, and it will return a list of entities, as described above.
<extract_entities
Simon Cozens, simon@kasei.com
simon@kasei.com
Maintained by Alberto Simões, ambs@cpan.org
ambs@cpan.org
Thanks to Jon Allen for help with Makefile.PL failure.
Thanks to Bo Adler for a patch with entity count.
Copyright 2004-2008 by Alberto Simões Copyright 2003 by Simon Cozens
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
To install Lingua::EN::NamedEntity, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Lingua::EN::NamedEntity
CPAN shell
perl -MCPAN -e shell install Lingua::EN::NamedEntity
For more information on module installation, please visit the detailed CPAN module installation guide.