Multimedia Social Networking
- LecturerProf. K. J. Ray Liu (Electrical and Computer Engineering Department, University of Maryland)
Host: Dr. Hong-Yuan Mark Liao - Time2010-07-16 (Fri.) 10:30 – 12:00
- LocationAuditorium 106 at new IIS Building
Abstract
Abstract
Within the past decade, the proliferation of multimedia social network
communities, such as Napster, and YouTube where millions of users form
a dynamically changing infrastructure to share content, have
introduced the new concept of social networking that creates
a technological revolution as well as brings new experiences to users.
The massive content production poses new challenges to the scalable
and reliable sharing of multimedia content over large and
heterogeneous networks. It also raises critical issues of intellectual
property protection and privacy issues.
In a multimedia social network, users actively interact with each
other, and such user dynamics not only influence each individual user
but also affect the system performance. To provide a predictable and
satisfactory level of service, it is of ample importance to understand
the impact of human factors on multimedia social networks. Such an
understanding provides fundamental guidelines to the better design of
multimedia systems and networking, and offers more secure and
personalized services. For example, in a peer-to-peer file-sharing
system, users pool together the resources and cooperate with each other
to provide an inexpensive, highly scalable, and robust platform for
distributed data sharing. However, since the nature of participation
in many multimedia social networks is often voluntary and unregulated,
there is a need to provide incentives and mechanism to stimulate
cooperation among users to improve system performance.
The influence of human behavior and factors has seldom been recognized
in signal and image processing research. Therefore, first in this talk
the goal is to illustrate why understanding of human factors and
behavior plays an important role in designing and improving multimedia
communications and security. Such a journey leads us to reconsider many
classical signal and image processing problems from the concept/notion
of social networking. The second goal of the talk is to demonstrate
that the social networking approach can indeed offer a new and unified
view to many classical problems and has the potential of becoming a
new signal and image processing paradigm.
Bio of Ray Liu
Dr. Liu received the B.S. degree from the National Taiwan University
in 1983, and the Ph.D. degree from UCLA in 1990, both in electrical
engineering. He is Professor and Associate Chair of Graduate Studies
and Research of Electrical and Computer Engineering Department,
University of Maryland, College Park. Dr. Liu is Director of
Communications and Signal Processing Laboratories and leads the
Maryland Signals and Information Group (SIG) with research
contributions that encompass broad aspects of wireless communications
and networking; multimedia communications and signal processing;
information forensics and security; biomedical imaging and
bioinformatics; and signal processing algorithms and architectures,
in which he has published over 10 books and 500 refereed papers.
Dr. Liu is the recipient of numerous honors and awards including the
1994 National Science Foundation Young Investigator Award; best paper
awards from IEEE Signal Processing Society, Vehicular Technology
Society, and EURASIP; IEEE Signal Processing Society 2004
Distinguished Lecturer; and EURASIP 2004 Meritorious Service Award.
Dr. Liu is the recipient of 2009 IEEE Signal Processing Society
Technical Achievement Award. He is a Fellow of the IEEE and AAAS. His
research was featured as one of seven technologies that IEEE believes
will have the world changing implications on the way humans interact
with machines, the world and each other, in honor of IEEE's 125th
Anniversary. Dr. Liu is recognized by Thomson Reuters as a Highly Cited
Researcher.
Dr. Liu is President-Elect of IEEE Signal Processing Society. He was
Vice President - Publications (2006-08) and has been a member-at-large
(2004-05) on the Board of Governor of IEEE Signal Processing Society.
He is a founder of Asia-Pacific Association of Signal and Information
Processing (APSIPA). Dr. Liu was the Editor-in-Chief of IEEE Signal
Processing Magazine, the founding Editor-in-Chief of EURASIP Journal
on Applied Signal Processing (JASP, now called EURASIP Journal on
Advances in Signal Processing), and the prime architect and proposer
of IEEE Trans. on Information Forensics and Security and IEEE Journal
on Selected Topics of Signal Processing.