XML Filtering for Publish/Subscribe System in a Mobile Environment

The publish/subscribe model has gained acceptanceas a solution for the loose coupling of systems in termsof asynchronous communication enabling SelectiveDissemination of Information (SDI) to mobile clients.The advent of Extensible Markup Language (XML) as ade facto standard for information exchange and thedevelopment of query languages for XML data enablethe development of more sophisticated filteringmechanisms. The inherent limitations of mobile devicesnecessitate information to be delivered to mobile clientsto be highly personalized according to user profiles.This paper proposes an approach that integratespublish/subscribe system and XML message filtering bydescribing indexing mechanism to enhance Xfilteralgorithm based on a modified Finite State Machine(FSM) approach that can quickly locate and evaluaterelevant profiles