in reply to
Re^2: RFC: Presentation on Machine Learning with Perl
in thread RFC: Presentation on Machine Learning with Perl
I have not got a lot of experience with these but will provide you a few links here. Some (Lingua:: modules and Wordnet modules at least) are CPAN modules.
Article on Lingua::LinkParser.
List of various Perl modules for parsing including Sensenet, Wordnet, Duluth.
Stanford NLP resource list
Hope these are a good starting point for you. A lot of NLP is in Java but there are also Perl resources too.