7. The method of claim 1 , wherein defining the content relevance model comprises: identifying the set of groups of word sets; calculating a score for each group of word sets; and storing (i) the set of groups of word sets (ii), the calculated scores, and (iii) a set of model parameters in the content relevance model.
7. The method of claim 1 , wherein defining the content relevance model comprises: identifying the set of groups of word sets; calculating a score for each group of word sets; and storing (i) the set of groups of word sets (ii), the calculated scores, and (iii) a set of model parameters in the content relevance model. 8. The method of claim 7 , wherein the content relevance model is stored as a text file.