... A LAYERED APPROACH TO NLP-BASED INFORMATION RETRIEVAL Sharon Flank SRA International 4300 Fair Lakes Court Fairfax, VA 22033, USA flanks~sra.com Abstract A layered approach to information ... does match Senator Robert Dole. The name recognition patterns employ a large file of name variants, set up as a simple alias table: the nicknames and variants of each name appear on a single ... invoked that, accessing a gazetteer, displays the location and related locations, such as Arlington, Virginia and Arlington, Massachusetts for Arlington, based on linked location information in...