An improved system and method is provided for searching a collection of objects that may be located in hierarchies of auxiliary information for retrieval of response objects. A framework to perform a generalization search in hierarchies may be used to generalize a search by moving up to a higher level...http://www.google.com/patents/US7991769?utm_source=gb-gplus-sharePatent US7991769 - System and method for budgeted generalization search in hierarchies
