Quality-aware Service Composition and Routing Framework for Advanced
Distributed Multimedia Services
Klara Nahrstedt
Currently, peer-to-peer overlay networks have evolved and represent an
important service delivery infrastructure instead of merely providing host
connectivity. Various multimedia services such as media players, multimedia
transcoders, filters, mixers, are becoming available as stand-alone
services offered to be included into a more complex multimedia service. The
question is how to allow for an autonomous composition and establishment of
even more complex distributed multimedia services in this overlay service
network.
In this talk, we will present a Quality-aware service composition and
service routing framework for advanced multimedia services. We will discuss
centralized and fully distributed service composition and routing
middleware approaches to assist in creation and management of distributed
multimedia services. The overall goal is to present algorithms that allow
for flexible, scaleable, load-balanced, self-healing, and automated
establishment and management of advanced Quality-aware distributed
multimedia services. Our current results via simulations and real
experiments indicate the feasibility and correctness of our framework when
applied to services such as mobile video and audio on demand, and content-
customized video on demand.
Speaker Bio
Klara Nahrstedt is an associate professor at the University of
Illinois at Urbana-Champaign, Computer Science Department. Her research
interests are directed towards multimedia middleware systems, quality
of service(QoS), QoS routing, QoS-aware resource management in distributed
multimedia systems, and multimedia security. She is the coauthor of the
widely used multimedia book `Multimedia: Computing, Communications and
Applications' published by Prentice Hall, the recipient of the Early NSF Career Award, the Junior Xerox Award, and
the IEEE Communication Society Leonard Abraham Award for Research Achievements. She
is the editor-in-chief of ACM/Springer Multimedia Systems Journal, and the Ralph
and Catherine Fisher Associate Professor. Klara Nahrstedt received her BA in mathematics from Humboldt
University, Berlin, in 1984, and M.Sc. degree in numerical analysis from
the same university in 1985. She was a research scientist in the Institute
for Informatik in Berlin until 1990. In 1995 she received her PhD from the
University of Pennsylvania in the department of Computer and Information
Science.
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