12. The method of claim 11 , wherein the step of converting comprises the step of normalizing the predefined weightings.
11. The method of claim 1 , wherein: the collection of text items comprises an existing word list having words and predefined weightings; the step of assigning comprises the step of converting the predefined weightings into converted weightings for each word in the existing word list; and the step of storing comprises the step of storing each word in the existing word list and its corresponding converted weighting.