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Events for August 26, 2009
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Role Of The Technical Witness In Litigation - Aug.26-27, 2009
Wed, Aug 26, 2009
Aviation Safety and Security Program
Conferences, Lectures, & Seminars
TWW 10-1
For more information and to register for Aviation Safety and Security Program courses, please visit http://viterbi.usc.edu/aviation.Audiences: Registered Audiences Only
Contact: Viterbi Professional Programs
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Meet USC: Admission Presentation, Campus Tour, & Engineering Talk
Wed, Aug 26, 2009
Viterbi School of Engineering Undergraduate Admission
Workshops & Infosessions
This half day program is designed for prospective freshmen and family members. Meet USC includes an information session on the University and the Admission process; a student led walking tour of campus and a meeting with us in the Viterbi School. Meet USC is designed to answer all of your questions about USC, the application process and financial aid.Reservations are required for Meet USC. This program occurs twice, once at 9:00 a.m. and again at 1:00 p.m. Please visit http://www.usc.edu/admission/undergraduate/visit/meet_usc.html to check availability and make an appointment. Be sure to list an Engineering major as your "intended major" on the webform!
Location: USC Admission Center
Audiences: Prospective Freshmen and Family Members - RESERVATIONS REQUIRED
Contact: Viterbi Admission
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Ph.D. Dissertation Defense
Wed, Aug 26, 2009 @ 10:00 AM - 11:00 AM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Bumpless Transfer and Fading Memory for Adaptive Switching ControlShin-Young Cheong
Ming Hsieh Department of Electrical Engineering
University of Southern CaliforniaAbstract:
Cheong's Ph.D. dissertation mainly focuses on implementation techniques for adaptive switching control. Adaptive switching control has a possibility to generate bad transients in controller output which can be reduced using various bumpless transfer techniques. A new bumpless transfer method is developed based on slow-fast controller decomposition. The method is especially well-suited to situations in which the plant model is poor or yet to be identified, as may be the case in adaptive switching control.
A new cost function with fading memory and a finite-duration time-window is introduced in order to reduce the effect of old data in unfalsified adaptive control applications where the plant varies slowly or infrequently with time. The effectiveness of the approach is demonstrated via a simple simulation. The result demonstrates that time-windowed/fading-memory cost function for unfalsified control is useful for adaptive control system with
time-varying plants, even when the plant fails to satisfy the usual 'feasibility' requirement of unfalsified control that it must be stabilizable by one of the candidate controllers to satisfy the usual 'feasibility' requirement of unfalsified control that it must be stabilizable by one of the candidate controllers.Biography: Shin-Young Cheong received B.S. degree in Electrical Engineering from Hanyang University,Seoul, Korea, in 2003. He received M.S. degree in 2005 and continued to study for Ph.D. degree in EE at USC.
He is currently studying adaptive switching control and his research interests are control theories including adaptive control, robust control, and optimization in feedback control system.
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 203
Audiences: Everyone Is Invited
Contact: Shane Goodoff
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Multiple Description Coding: Shannon Meets Wiener and von Neumann
Wed, Aug 26, 2009 @ 02:30 PM - 03:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Jun Chen,
McMaster UniversityAbstract: Multiple description coding is a quantization technique for multimedia transmission through unreliable links. A general achievable 2-description rate region was found by El Gamal and Cover, and was shown to be tight for the quadratic Gaussian case by Ozarow. In this talk, I will present a constructive quantization scheme that can achieve the whole Gaussian 2-description rate region. The key idea is that a high dimensional nonlinear quantization system can be converted into a linear system with small nonlinear components. More fundamentally, our scheme reveals an intimate connection between Shannon's theory for digital systems and Wiener's theory for analog systems.Our scheme also suggests a natural inner bound of the rate region for the general $L$-description case. It turns out that the inner bound is tight for quadratic Gaussian multiple description coding with individual and central distortion constraints, which solves a longstanding open problem. Our proof is based on von Neumann°Øs game theory. Specifically, it is shown that the inner bound can be interpreted as a min-max game and the corresponding max-min game yields an outer bound; these two bounds coincide due to the existence of a saddle point.I will also discuss some intriguing connections between multiple description coding and other major problems in network information theory.Biography: Jun Chen received the B.E. degree with honors in Communication Engineering from Shanghai Jiao Tong University, Shanghai, China, in 2001, and the M.S. and Ph.D. degrees in Electrical and Computer Engineering from Cornell University, Ithaca, NY in 2003 and 2006, respectively. He was a Postdoctoral Research Associate in the Coordinated Science Laboratory at the University of Illinois at Urbana-Champaign, Urbana, IL from 2005 to 2006, and a Josef Raviv Memorial Postdoctoral Fellow at the IBM Thomas J. Watson Research Center, Yorktown Heights, NY from 2006 to 2007. He is currently an Assistant Professor of Electrical and Computer Engineering at McMaster University, Hamilton, ON, Canada. He holds the Barber-Gennum Chair in Information Technology.Host: Zhen Zhang, zhzhang@usc.edu, EEB 508
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 539
Audiences: Everyone Is Invited
Contact: Gerrielyn Ramos
