Reminds me of term frequency-inverse document frequency (http://en.wikipedia.org/wiki/Tf*idf http://en.wikipedia.org/wiki/Tf*idf) which can be used with cosine

Reminds me of term frequency-inverse document frequency (http://en.wikipedia.org/wiki/Tf*idf http://en.wikipedia.org/wiki/Tf*idf) which can be used with cosine similarity to compute something that approximates the "semantic" relatedness of documents. Example and more algo details here: http://www.exsupera.com/sandbox/DCM/html/document.py?id=3 http://www.exsupera.com/sandbox/DCM/html/document.py?id=3