databaseUS20050197883Sep 7, 2004Sep 8, 2005Sap AktiengesellschaftMethod and system for classifying retail products and services using characteristic-based grouping structuresUS20050216512Mar 10, 2005Sep 29, 2005Rahav DorMethod of accessing a work of art, a product, or other tangible or intangible objects without knowing the title or name thereof using fractional sampling of the work of art or obje