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Events for February 04, 2008
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Designing Synthetic Biological Networks
Mon, Feb 04, 2008 @ 11:00 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
SPEAKER: Dr. Desmond Lun, Computational Biologist, Broad Institute MIT; Research Fellow, Harvard Medical SchoolABSTRACT: The engineering of simple living organisms such as microbes in a well-defined, systematic manner---in much the same way as computer systems or communication systems are engineered---has recently emerged as an exciting, realizable prospect. Such engineering, which is often referred to as synthetic biology, promises new, improved ways of producing drugs and fuels as well as to serve functions that are yet to be imagined. But, as with all engineering, synthetic biology requires design, and, at present, few design tools or principles exist for synthetic biology.In this talk, we discuss how mathematical optimization can be used to aid the design of synthetic microbes. In particular, we focus on the problem of engineering E. coli to produce biofuel and discuss a network optimization problem that arises in this context. We outline a local-search heuristic that we have implemented to tackle this problem, and we discuss potential areas for improvement as well as general future directions in the nascent field of analytical design for synthetic biology.BIO: Desmond Lun is a Computational Biologist at the Broad Institute of MIT and Harvard and a Research Fellow in Genetics at Harvard Medical School. Prior to his present position, he was a Postdoctoral Research Associate in the Coordinated Science Laboratory at the University of Illinois at Urbana-Champaign. He received bachelor's degrees in mathematics and computer engineering from the University of Melbourne, Australia in 2001, and S.M. and Ph.D. degrees in electrical engineering and computer science from MIT in 2002 and 2006, respectively.Dr. Lun's research interests are in networking and in synthetic and systems biology. He is co-author, with Tracey Ho, of "Network Coding: An Introduction," forthcoming from Cambridge University Press.HOST: Prof. Giuseppe Caire, caire@usc.edu
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Mayumi Thrasher
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Motion-Compensated Orthogonal Video Transforms
Mon, Feb 04, 2008 @ 01:30 PM - 03:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Abstract:
In 1989, Torbjorn Kronander observed that techniques known at that time for 3D subband coding of image sequences do not use motion compensation. Knowing the importance of motion compensation for efficient video coding, he proposed a method for invertible motion fields. Unfortunately, motion compensation is, in general, not invertible and subsequent research addressed the problem of motion-compensated subband coding.In this talk, we review the basic concepts of video compression, stress advantages and disadvantages of popular compression schemes, and present a new class of motion-compensated orthogonal video transforms. This class offers strictly orthonormal subbands while permitting general motion compensation.Bio:
Markus Flierl is Visiting Assistant Professor at the Max Planck Center for Visual Computing and Communication at Stanford University. He received the Doctorate in Engineering from Friedrich Alexander University, Germany, in 2003. From 2003 to 2005, he has been a senior researcher at the Swiss Federal Institute of Technology Lausanne, Switzerland. He has authored the book 'Video Coding with Superimposed Motion-Compensated Signals: Applications to H.264 and Beyond.' He has been named the recipient of the 2007 VCIP Young Investigator Award. His research interests include visual communication networks and video representations.Host: Professor Antonio Ortega, x02320, ortega@sipi.usc.edu
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Gloria Halfacre
