4. The method according to claim 1 , wherein said algorithm comprises a clustering algorithm and wherein each of said categories comprises a category of said text documents containing a particular cluster.
4. The method according to claim 1 , wherein said algorithm comprises a clustering algorithm and wherein each of said categories comprises a category of said text documents containing a particular cluster. 6. The method according to claim 4 , wherein said forming said categories comprises inputting a predetermined number of categories.