Or perhaps Vector Space

This module takes a list of documents (in English) and builds a simple in-memory search engine using a vector space model. Documents are stored as PDL objects, and after the initial indexing phase, the search should be very fast. This implementation applies a rudimentary stop list to filter out very common words, and uses a cosine measure to calculate document similarity.

In reply to Re^2: word similarity measure by Gavin
in thread word similarity measure by karey3341

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