Lingua-Stem-Ru

NAME

Lingua::Stem::Ru - Porter's stemming algorithm for Russian

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 (I hope :-) as described in:

http://snowball.tartarus.org/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 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.

HISTORY

0.01 (2004-05-21)

AUTHOR

Aleksandr Guidrevitch <pillgrim@mail.ru>

SEE ALSO

Lingua::Stem

COPYRIGHT

This software may be freely copied and distributed under the same terms and conditions as Perl itself, either Perl version 5.8.3 or, at your option, any later version of Perl 5 you may have available..