14. The method of claim 11 in which generating the aliasing file comprises: extracting numbers from the database file; normalizing the extracted numbers; and applying a language lexicon to the normalized extracted numbers.
14. The method of claim 11 in which generating the aliasing file comprises: extracting numbers from the database file; normalizing the extracted numbers; and applying a language lexicon to the normalized extracted numbers. 15. The method of claim 14 in which generating the aliasing file further comprises storing multiple normalized extracted numbers that map to a single concept in the aliasing file.