Perl 5 module Lingua::Stemmer::Ru Lingua::Stemmer::Ru is an implementation of Porter's stemming algorithm for Russian (KOI8-R only). The algorithm is implemented exactly as described in: http://snowball.tartarus.org/russian/stemmer.html INSTALLATION You install Lingua::Stemmer::Ru by running these commands in the *nix environment: perl Makefile.PL make make test (optional) make install To install Lingua::Stemmer::Ru in the Win32 environment, use nmake instead of make. nmake is available for free (in a self extracting executable): After download and inflate, put nmake.exe and nmake.err in c:\windows\command . DOCUMENTATION POD format documentation is included in Levenshtein.pm. You can read the documentation online: https://metacpan.org/pod/Lingua::Stemmer::Ru Or read it on your terminal, using the perldoc command: perldoc Lingua::Stemmer::Ru COPYRIGHT Copyright (C) 2003 by Aldo Calpini Copyright (C) 2004 by Aleksandr Guidrevitch