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:
Aug. 27, 2013
Filed:
Apr. 20, 2007
John William Alcorn, Heyworth, IL (US);
Kevin Spencer Barker, Raleigh, NC (US);
David Michael Eads, Raleigh, NC (US);
Joachim H. Frank, Greenwich, CT (US);
John William Alcorn, Heyworth, IL (US);
Kevin Spencer Barker, Raleigh, NC (US);
David Michael Eads, Raleigh, NC (US);
Joachim H. Frank, Greenwich, CT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, system and computer program product for achieving a balance between pre-filter efficiency and pre-filter throughput. Event subscriptions are obtained for a given event consumer. The event subscriptions define the events to be routed to this event consumer. Pre-filters of varying complexity and filtering power are constructed based on these event subscriptions. A balance between pre-filter efficiency and pre-filter throughput may be achieved by selecting the best pre-filter out of these constructed pre-filters to filter events to its associated event consumer. The best pre-filter is selected by comparing a complexity threshold (e.g., a limit for the number of atomic Boolean expressions in a pre-filter) with the actual complexity (e.g., the actual number of atomic Boolean expressions) for each constructed pre-filter and selecting the most complex pre-filter without exceeding the threshold.