13. The method of claim 11 , wherein said step of comparing documents pairwise comprises: counting a number of times N f (w) that a word w occurs in a document f; and dividing N f (w) by a total number of words in the document N f to develop a profile of document f n f (w) .
13. The method of claim 11 , wherein said step of comparing documents pairwise comprises: counting a number of times N f (w) that a word w occurs in a document f; and dividing N f (w) by a total number of words in the document N f to develop a profile of document f n f (w) . 14. The method of claim 13 , wherein said step of developing a similarity score comprises: calculating a similarity S(1,2) between a first document and a second document as follows: S ⁡ ( 1 , 2 ) = K ⁢ ⁢ ∑ w ⁢ n 1 ⁡ ( w ) ⁢ ⁢ n 2 ⁡ ( w ) where K is a tuning parameter.