Challenges and Advances for Adaptive Service-based Systems with Multiple QoS Requirements

Speaker:	Professor Stephen S. YAU
		School of Computing and Informatics
		Arizona State University

Title:		"Challenges and Advances for Adaptive Service-based
		 Systems with Multiple QoS Requirements"

Date:		Tuesday, 10 July 2007

Time:		4:00pm - 5:00pm

Venue:		Lecture Theatre F
		(Leung Yat Sing Lecture Theatre, near lift nos. 25/26),
		HKUST

Abstract:

Service-based systems (SBS) have many applications, such as scientific
computing, e-business, health care and homeland security, due to the major
advantage of enabling rapid composition of distributed applications. The
rapid growth of deployment and utilization of SBS in various computing
environments requires them not only to be adaptive, but also to provide
satisfactory QoS. Such requirements impose great demands to produce
adaptive SBS with improved QoS in dynamic environments expeditiously and
cost-effectively.

In this seminar, the challenges for the rapid development, deployment and
operations of adaptive SBS with satisfactory QoS in dynamic environments
will be discussed. Our research on Adaptable Situation-aware Secure
Service-based (AS3) systems will be presented, including providing
development and runtime support for service-oriented environments to
achieve users' goals under dynamic situations without violating their
security policies and real-time requirements. The architecture of AS3
systems, a declarative Situation-Awareness (SAW) model, techniques for
automated agent synthesis for situation-aware workflows in AS3 systems,
and execution monitoring for runtime adaptation, will also be presented.
Future directions of research in this area will also be discussed.

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Biography:

Stephen S. YAU is currently Director of Information Assurance Center and
Professor of Computer Science and Engineering at Arizona State University
(ASU), Tempe. He served as the Chair of Computer Science and Engineering
Department at ASU, and was previously with University of Florida,
Gainesville and Northwestern University, Evanston, Illinois.  He served as
the President of the Computer Society of the Institute of Electrical and
Electronics Engineers (IEEE-CS) and the Editor-in-Chief of the Computer
magazine. He organized many international conferences, including the World
Computer Congress of International Federation for Information Processing
(IFIP) and the annual international IEEE Computer Software and
Applications Conference (COMPSAC).

His current research is in software engineering, service-based systems,
mobile ad hoc networks, adaptive middleware, and trustworthy computing. He
has published over 200 papers and received numerous awards, including
Louis E. Levy Medal of the Franklin Institute, Richard E. Merwin Award of
the IEEE-CS, IEEE Centennial Medal and Third Millennium Medal, Tsutomu
Kanai Award of the IEEE-CS, and Outstanding Contributions Award of the
Chinese Computer Federation.  He is a life fellow of the IEEE and a fellow
of American Association for the Advancement of Science.  He received the
Ph.D. degree in electrical engineering from University of Illinois,
Urbana.