eigenclass - Related document discovery, without algebra
Finding related documents - without algebra
(tags: ruby datamining lsi algorithms tagging programming data python)
SVD Recommendation System in Ruby - igvita.com
And a detour on SVD in Ruby
(tags: ruby programming rails datamining learning rubyonrails recommendations algorithms)
Practical text classification with Ruby « the zen machine
Some more information on how to fix the LSI classifier
(tags: ruby classification bayesian programming tagging data lsi) ...