METHOD FOR CONTENT-BASED FILTERING OF MESSAGES BY ANALYZING TERM CHARACTERISTICS WITHIN A MESSAGE

摘要

A computer implemented method for document classification or filtering of junk messages comprises the steps of computing the sum of the product of the frequency of occurrence with an assigned term weight for every term from a term lexicon that also appears in the message, normalizing the resulting sum by dividing the result by the total number of words (or the number of unique words) in the document and assigning a score to the document based on the normalized sum.