Stephen S. Yau‹ณŽ๖‚ฬu‰‰‰๏

‘ๆ2Œค‹†Žบ > Œค‹†Œ๐—ฌŠˆ“ฎ > Stephen S. Yau‹ณŽ๖‚ฬu‰‰‰๏

“๚ŽžF2007”N10ŒŽ26“๚ 10:00`11F30
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‘่–ฺF  Developing Adaptive Service-based Systems 
        in Ubiquitous Computing Environments
u‰‰ŽาFProfessor Stephen S. Yau
        Arizona State University (USA)

ŠT—vF 
To achieve the goal of ubiquitous computing (ubicomp) -gcomputing 
anytime, anywhereh, it is essential that ubicomp software systems have 
the capability of adapting to dynamically changing environments. Such 
adaptations change the configuration and behavior of ubicomp software 
systems to provide not only the required functionality, but also 
satisfactory QoS, such as timeliness and security. Recent development of 
service oriented architecture (SOA) has shown the great potentials of 
developing adaptive software systems based on SOA. Software systems 
based on SOA, called service-based systems, can be rapidly composed of 
services provided by various organizations, regardless of the 
differences in the languages and/or platforms used to implement the 
services, and can be easily reconfigured at runtime to accommodate new 
requirements. However, how to develop adaptive service-based systems 
with satisfactory QoS in dynamic environments like ubicomp environments 
remains largely unknown.

In this talk, the challenges for the rapid development, deployment and 
operation of adaptive service-based systems to provide satisfactory QoS 
in ubicomp environments will be presented. Related research effort, such 
as autonomic computing and situation awareness, will be discussed. In 
particular, our research on Adaptable Situation-aware Secure Service-
based (AS3) systems and Design of Service-based Software Systems with 
QoS Monitoring and Adaptation will be presented. Some important related 
research issues, such as security and privacy, arisen in the usage of 
contextual and situation information, and distributed trust management 
in service-based systems in ubicomp environments will also be discussed.

u‰‰Žาะ‰๎F
His current research is in software engineering, service-based systems, 
mobile ad hoc networks, adaptive middleware, ubiquitous computing 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.

		


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