FullText.exe is freely available for academic usage. The program generates a word-occurrence matrix, a co-occurrence matrix, and a normalized co-occurrence matrix from a set of text files and a word list.
Powerful Search Engine designed for Document Management, Competitive Intelligence, Press Analysis and Text Mining, Web Mining, Knowledge Discovery, Strategic Watch...Has Report Writer, Web Spider, Publisher, more...
Text Mining Recommendation Systems/ Collaborative Filtering, Structure Web Graph Page Rank/Spam Social Networking, Data Structures Bloom Filters ... Stanford University course; resources, links, more.