Abstract:
The publish/subscribe model has gained acceptance
as a solution for the loose coupling of systems in terms
of asynchronous communication enabling Selective
Dissemination of Information (SDI) to mobile clients.
The advent of Extensible Markup Language (XML) as a
de facto standard for information exchange and the
development of query languages for XML data enable
the development of more sophisticated filtering
mechanisms. The inherent limitations of mobile devices
necessitate information to be delivered to mobile clients
to be highly personalized according to user profiles.
This paper proposes an approach that integrates
publish/subscribe system and XML message filtering by
describing indexing mechanism to enhance Xfilter
algorithm based on a modified Finite State Machine
(FSM) approach that can quickly locate and evaluate
relevant profiles.
