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:
Mar. 08, 2011
Filed:
Apr. 26, 2006
Applicants:
Nikolaos Koudas, Toronto, CA;
Divesh Srivastava, Summit, NJ (US);
David Toman, Waterloo, CA;
Inventors:
Assignee:
AT&T Intellectual Property II, L.P., Reno, NV (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and system for performing a data stream query. A data stream query requiring a join operation on multiple data streams is approximated without performing the join operation. It is determined whether conditions of the query are proper to accurately approximate the join operation, and if the conditions are proper the join operation is approximated. The join operation is approximated by independently aggregating values of the data streams and comparing the independently aggregated values.