The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 2005
Filed:
Aug. 29, 2001
Sihem Amer-yahia, New York, NY (US);
Divesh Srivastava, Summit, NJ (US);
Dan Suciu, Seattle, WA (US);
Sihem Amer-Yahia, New York, NY (US);
Divesh Srivastava, Summit, NJ (US);
Dan Suciu, Seattle, WA (US);
AT&T Corp., New York, NY (US);
Abstract
A technique for performing query evaluation on distributed directories utilizes the creation of a 'topology cache' defining the hierarchical relationship between the various directory servers (i.e., identifying 'subordinate' and “superior” knowledge references associated with each directory server in the system). The created topology cache is then stored at each directory server, and forwarded to a client upon submitting a query to the system. Using the topology cache information at the client, a distributed query evaluation plan can be developed for use with complex queries, such as hierarchical and aggregate queries.