Apparatus and method of semantic-based publish-subscribe system

Details Apparatus and method of semantic-based publish-subscribe system Apparatus and method of semantic-based publish-subscribe system

2011-01-04

2011-01-04

Al-Hashemi, Sana (Department: 2156)

Data processing: database and file management or data structures

Database schema or data structure

Object-oriented database structure

C707S999100, C707S999102

Reexamination Certificate

active

07865540

ABSTRACT:
A semantic publish/subscribe system enables semantic event routing and allows publishers (resp. subscribers) to use self-defined event schemas to publish (resp. subscribe) events. The constraints on value-based publish/subscribe systems that publishers and subscribers must share the same event schemas are removed. With ontology support, the system conducts event correlation based on their semantics using relational operators. Event sources are searched for subscriptions and selected events are automatically correlated according to subscriptions. The system enables efficient semantic event routing by rewriting the subscription SQL statement, wherein no redundant events are generated.

REFERENCES:
patent: 2004/0225629 (2004-11-01), Eder
patent: 2006/0184473 (2006-08-01), Eder
patent: 2006/0212487 (2006-09-01), Kennis et al.
patent: 2008/0082374 (2008-04-01), Kennis et al.
Y. Jin, et al., Relational Subscription Middleware for Internet-Scale Publish-Subscribe, Dept. of Computer Science, Stanford University, (2003).
M. Petrovic, et al., S-ToPSS: Semantic Toronto Publish/Subscribe System, Dept. of Electrical and Computer Engineering and Dept. of Computer Science University of Toronto, Canada, (2003).

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