Tf-idf is a project mainly written in Ruby, based on the MIT license.
A rubygem that calculates the tf-idf of a corpus.
This is a simple Tf-idf library. The algorithm is described in:
http://en.wikipedia.org/wiki/Tf-idf.
A port of Niniane Wang's tfidf library.
Copyright (c) 2009 Marc Chung. See LICENSE for details.