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Manual Reference Pages  -  LINGUA::STEM::RU (3)

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NAME

Lingua::Stem::Ru - Porter’s stemming algorithm for Russian (KOI8-R only)

CONTENTS

SYNOPSIS



    use Lingua::Stem::Ru;
    my $stems = Lingua::Stem::Ru::stem({ -words => $word_list_reference,
                                         -locale => ru,
                                         -exceptions => $exceptions_hash,
                                      });

    my $stem = Lingua::Stem::Ru::stem_word( $word );



DESCRIPTION

This module applies the Porter Stemming Algorithm to its parameters, returning the stemmed words.

The algorithm is implemented exactly as described in:



    http://snowball.tartarus.org/algorithms/russian/stemmer.html



The code is carefully crafted to work in conjunction with the Lingua::Stem module by Benjamin Franz. This stemmer is also based on the work of Aldo Capini, see Lingua::Stem::It.

METHODS

stem({ -words => \@words, -locale => ’ru’, -exceptions => \%exceptions }); Stems a list of passed words. Returns an anonymous list reference to the stemmed words.

Example:



  my $stemmed_words = Lingua::Stem::Ru::stem({ -words => \@words,
                                              -locale => ru,
                                          -exceptions => \%exceptions,
                          });



stem_word( $word ); Stems a single word and returns the stem directly.

Example:



  my $stem = Lingua::Stem::Ru::stem_word( $word );



stem_caching({ -level => 0|1|2 }); Sets the level of stem caching.

’0’ means ’no caching’. This is the default level.

’1’ means ’cache per run’. This caches stemming results during a single
call to ’stem’.

’2’ means ’cache indefinitely’. This caches stemming results until
either the process exits or the ’clear_stem_cache’ method is called.

clear_stem_cache; Clears the cache of stemmed words

    EXPORT

None by default.

AUTHOR

Aleksandr Guidrevitch <pillgrim@mail.ru>

REPOSITORY

<https://github.com/neilb/Lingua-Stem-Ru>

SEE ALSO

Lingua::Stem provides an interface for some other pure Perl stemmers available on CPAN, including Lingua::Stem::Ru
Lingua::Stem::Snowball
Lingua::Stem::Any

COPYRIGHT AND LICENSE

Copyright (C) 2003 by Aldo Calpini <dada@perl.it>

Copyright (C) 2004 by Aleksandr Guidrevitch <pillgrim@mail.ru>

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

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perl v5.20.3 LINGUA::STEM::RU (3) 2016-02-12

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