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Conferences, Lectures, & Seminars
Events for January
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Subjective Quality of Mobile Video Streaming
Tue, Jan 15, 2008 @ 11:00 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Michal RiesInstitute of Communications and Radio-Frequency Engineering, Vienna University of Technology
Vienna, AustriaABSTRACT:
Provisioning of mobile video streaming is hitting toward to limitations in channel quality and capacity as well as in terminal processing power. These known limitations, network settings, and video content influence the end-user quality. To select optimal video streaming settings, it is important to consider corresponding quality requirements based on human perception. The intention of this talk is to explain recent trends in video quality estimation for mobile video services.Biography:
Michal Ries is currently a research assistant and working towards his Ph.D. degree at Vienna University of Technology, Institute of Communications and Radio-Frequency Engineering. He received his B.S. and M.S. degrees in 2002 and 2004 at the Slovak University of Technology, Faculty of Electrical Engineering and Information Technology in Bratislava. Before he joined TU Vienna he was working for Siemens PSE as system engineer. His research interests include perceptual video and audiovisual quality evaluation, video and audiovisual metric design, monitoring of QoS in wireless networks, video streaming in wireless network optimization.Host: Professor Sanjit Mitra
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Talyia Veal
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
Representation of Signal Sets for the Analysis of Pathogen Variability
Wed, Jan 16, 2008 @ 10:00 AM - 11:00 AM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Professor Paul Dan Cristea
Biomedical Engineering Center,
University "Politehnica" of BucharestAbstract: It is often desirable to analyze sets of related signals in a way that separates the joint variation of the set, from the individual features of each component signal. The specific case that prompted our research is the genomic signal analysis of taxon variability, but the problem is general and the methods presented in the paper can be used to improve the description of many other types of signal sets. To better express variations of related signals in a given set , where the individual signals are , with xi – the sampling points and yi – the corresponding signal values, it is advantageous to describe the signal set by using two types of components:
(1) a reference sequence that gives the central tendency of the set, i.e., the common variation
of the signals;
(2) the individual offsets of the signals with respect to the chosen reference:
.
The central tendency that is used as reference must extract optimally the common variation of the signals in the considered set, so that the individual offset of each signal expresses only the features specific to that signal, with minimum crosstalk. Various estimates of the central trend have been used as reference: average sequence of the signals (or other linear combination of the signals), median sequence , mode step sequence , and maximum flat sequence .The method has been used to analyze pathogen variability resulting in treatment resistance. Mutations occurring at specific sites along a segment comprising codons 509-595 of the rpoB gene of Mycobacterium tuberculosis (MT), which encodes thesub-unit of RNA polymerase, can be put in direct correspondence to Rifampin (RMP) resistance. Similarly, the variability of polymerase and reverse transcriptase genes of HIV-1, Clade F, has also been monitored this way to detect resistance to the antiretroviral treatment of AIDS.Biography: Professor Paul Cristea graduated from the Faculty of Electronics and Telecommunications (UPB - University "Politehnica" of Bucharest, Romania, 1962), the Faculty of Physics (University of Bucharest, 1969), and has a Ph.D. in Technical Physics (UPB, 1970). Since then his research and teaching activities covered an large area of Electrical Engineering and related domains including topics like Digital Signal and Image Processing, Genomic Signals, Neural and Evolutionary Systems, Computerized Medical Equipment, Evolutionary Intelligent Agents, Intelligent e-Learning Environments. He is the author or co-author of more then 130 published papers, 11 patents and contributed to more then 20 books in these fields. He is currently affiliated with UPB, the Biomedical Engineering Center (general director) and the Vrije Universiteit Brussel, Belgium, the ETRO Department. He is a corresponding member of the Romanian Academy and director of the Romanian Bioinformatics Society.Host: Prof. Sanjit MitraLocation: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Talyia Veal
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
One Dimensional Nanostructures and their Applications - Dr. M. Meyyappan
Wed, Jan 16, 2008 @ 11:00 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Nanotechnology SeminarOne Dimensional Nanostructures and their ApplicationsDr. M. MeyyappanNASA Ames Research CenterHost: Professor Chongwu Zhou, Electrical EngineeringAbstract: The ability to grow a variety of semiconductor, oxide and other inorganic
materials in the form of nanowires with controlled properties and vertical orientation
provides a competitive avenue for applications in logic, memory, data storage, sensors
and others. Growth of these nanowires using a vapor-liquid-solid approach, material
characterization and application development will be discussed in detail. In addition, an
overview of carbon nanotube based chemical and biosensors will be presented covering
CNT preparation, sensor fabrication and sensor performance. The author acknowledges
contributions from Bin Yu, Jeff Sun, Jing Li, Y. Lu and Jun Li.
Biography: Dr. Meyya Meyyappan is Chief Scientist for Exploration Technology at the
Center for Nanotechnology, NASA Ames Research Center in Moffett Field, CA. Until
June 2006, he served as the Director of the Center for Nanotechnology as well as Senior
Scientist. He holds an Adjunct Professor position at the Arizona State University. He is a
founding member of the Interagency Working Group on Nanotechnology (IWGN)
established by the Office of Science and Technology Policy (OSTP). The IWGN is
responsible for putting together the National Nanotechnology Initiative.
For his contributions and leadership in nanotechnology, he has received numerous awards
including: a Presidential Meritorius Award; NASA's Outstanding Leadership Medal;
Arthur Flemming Award given by the Arthur Flemming Foundation and the George
Washington University; 2008 IEEE Judith Resnick Award; IEEE-USA Harry Diamond
Award. For his educational contributions, he has received: Outstanding Recognition
Award from the NASA Office of Education; the Engineer of the Year Award (2004) by
the San Francisco Section of the American Institute of Aeronautics and
Astronautics(AIAA); IEEE-EDS Education Award. Dr. Meyyappan has authored or coauthored
over 175 articles in peer reviewed publications and made over 200
Invited/Keynote/Plenary Talks in nanotechnology subjects across the world.Location: Frank R. Seaver Science Center (SSC) - 319
Audiences: Everyone Is Invited
Contact: Ericka Lieberknecht
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
Wireless Ad-Hoc Networks: From Probability to Physics via Information Theory
Thu, Jan 17, 2008 @ 01:30 PM - 02:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
SPEAKER: Professor Massimo Franceschetti,
University of California, San DiegoABSTRACT: In this interdisciplinary talk we consider the problem of determining the information capacity of a network of wireless transmitters and receivers and try to draw some non-trivial connections between spatial stochastic processes, physics, and information theory.We present the following main result of statistical physics flavor: By distributing uniformly at random an order of n nodes wishing to establish pair-wise independent communications inside a domain of size of the order of n, the per-node information rate must follow an inverse square-root of n law, as n tends to infinity.The above claim originally due --in slightly different form-- to Gupta and Kumar (2000), requires both the construction of a network
operation scheme that achieves the required rate, and an information-theoretic proof of the optimality of such a scheme, at least in the scaling limit sense.We present a scheme due to Franceschetti, Dousse, Tse, and Thiran (2007) which relies on the theory of percolation and achieves the
inverse square-root of n law. Then, departing from the traditional information-theoretic approach of postulating fading channel and path loss models, we apply directly Maxwell's physics of wave propagation in conjunction to Shannon's theory of information, to obtain the "natural" upper bound on the scaling limit of the per-node rate and show that the inverse square-root of n bound is tight. This is a recent result of Franceschetti, Migliore, and Minero (2007).The conclusion is that claims (abundant in the literature) of surpassing the inverse square-root of n law, are artifacts of unrealistic channel modeling assumptions that hide the natural spatial constraints revealed by the Maxwell-Shannon approach.Host: Prof. Urbashi Mitra, ubli@usc.eduLocation: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Mayumi Thrasher
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
Acoustic Communications, Modem-Based Navigation Aids, and Undersea Networks
Fri, Jan 18, 2008 @ 10:00 AM - 11:30 AM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
SPEAKER: Dale Green, Teledyne BenthosABSTRACT: Over the past two years considerable interest has arisen within the world-wide academic community concerning the development of
concepts for undersea wireless networks. In this talk, I will present the core technologies developed by Teledyne Benthos on underwater acoustic
communications. Our Telesonar modem is the enabling system for the navy's Seaweb program, and it is the foundation of several underwaternavigation aids, environmental sensing systems, passive
sonar systems, and portable tracking ranges for submarines.Our Telesonar acoustic modems have a history dating back over ten years. The original modem was used as the development platform of underseanetworking via the Seaweb program from the Space and Naval
WarfareSystems Command (SPAWAR). Over the years, the capabilities of Telesonar modems have grown from a few tens of bits per second (bps) with marginal reliability to today's wide range of modulation schemes suitable for a wide range of environmental and operational conditions. At the same
time, the size and power consumption of the modem has declined dramatically. In this talk, I will describe some key features of our modems and their potential applications, such as the range rate technique, low-power wake-up, multiple access signaling, networking, and modem based navigation and environmental sensing.BIO: Teledyne Benthos is an industry leader in developing acoustic modems for underwater communication and networking. Dale Green is the
Chief Scientist at Teledyne Benthos with responsibilities for advanced developments in acoustic communications and signal processing. He
specializes in theory, algorithm development, and implementation of digital communications in adverse channels. He currently is the PI formultiple SBIR and BAA programs, and originated the concepts and
methodsused in the PUTS submarine tracking program. He is the principal architect for enhancements to the Teledyne Benthos line of acoustic modems and has for ten years supported SPAWAR in the development of
networked acoustic communications. Mr. Green was the PI for a successful feasibility study and demonstration project for providing the
Swedish Navy with a Fleet-wide acoustic communications system. He has consulted with the Swedish Navy in developing techniques for active
sonar for ASW purposes. Education: M.S., Electrical Engineering, San Diego State University; M.S., Applied Physics, University of California,San Diego; M.S., Ocean Engineering, University of
Hawaii; B.A., Mathematics, University of California, Los Angeles.HOST: Wei Ye, weiye@ISI.EDULocation: Information Science Institute (ISI) - - 11th Floor Conference Room
Audiences: Everyone Is Invited
Contact: Mayumi Thrasher
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
Munushian Visiting Seminar - Dr. Herschel Rabitz
Fri, Jan 18, 2008 @ 11:00 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Friday, January 18, 2008Dr. Herschel RabitzPrinceton University"Control in the Micro-World:From Quantum Systems to Bio-Systems"Hedco Neuroscience Building (HNB 100)Hosted by Prof. Hossein HashemiAbstract
The study of quantum system dynamics and biosystem dynamics have generally developed as distinct Subjects with their own scientific issues, technical aspects and applications. However, when these subjects are considered in the context of controlling their respective dynamical behavior many common conceptual threads and even algorithms for operation become apparent by their linkage to systems analysis. These common operational features exist despite the fact that quantum systems and biosystems operate on vastly different temporal and spatial scales. In the case of quantum systems, manipulation of their dynamics may be affected by ultrafast shaped laser pulses while in the case of biosystems genetic and molecular engineering as well as applied chemical fluxes can play analogous roles. The presentation will be given in two parts respectively on quantum system and biosystem dynamics, with an attempt at the end to draw attention to their common features.Bio
Herschel A. Rabitz graduated from Harvard University in 1970, with a Ph.D. degree in chemical physics. This was followed by post-doctoral work at the University of Wisconsin. In 1971, Professor Rabitz joined the faculty of the Department of Chemistry
at Princeton University, and from July, 1993 to July, 1996 was Chairman of the Department. He is also an affiliated member of Princeton's Program in Applied and Computational Mathematics. Professor Rabitz's research interests lie at the interface of chemistry, physics, and engineering, with principal areas of focus including molecular dynamics, biophysical chemistry, chemical kinetics, and optical interactions with matter. An overriding theme throughout his research is the emphasis on molecular scale systems analysis. Professor Rabitz has over 700 publications in the general area of chemical physics.Location: Hedco Neurosciences Building (HNB) - 100
Audiences: Everyone Is Invited
Contact: Ericka Lieberknecht
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
Routing and Network Coding on Lines, Stars, and Rings
Fri, Jan 25, 2008 @ 03:30 PM - 04:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
SPEAKER: Dr. Gerhard Kramer, Bell Laboratories,
Alcatel-LucentABSTRACT: Network coding allows each node in a network to combine its input information instead of simply storing, copying, and forwarding data. We present several recent results. The first is a new upper bound on network coding rates that applies to wireline, wireless, and mixed wireline/wireless networks. The bound, called a progressive d-separating edge set (or PdE) bound, involves progressively removing edges from a network graph and checking whether certain strengthened d-separation conditions are satisfied. Second, we consider line networks that are elements of larger networks. We show that under both edge and node capacity constraints the optimal code is a combination of rate-splitting, copying, routing, and "butterfly" binary linear network coding. Third, we consider star and ring networks and develop related results.This work was done jointly with Sadegh Tabatabaei and Serap A. Savari.BIO: Gerhard Kramer received the B.Sc. and M.Sc. degrees in electrical engineering from the University of Manitoba, Winnipeg, MB, Canada, in1991 and 1992, respectively, and the Dr. sc. techn. (Doktor der Technischen Wissenschaften) degree from the Swiss Federal Institute of Technology (ETH), Zurich, Switzerland, in 1998. From July 1998 to March 2000, he was with Endora Tech AG, Basel, Switzerland, as a communications engineering consultant. Since May 2000 he has been with Bell Laboratories, Alcatel-Lucent, Murray Hill, NJ, USA.HOST: Prof. Giuseppe Caire, caire@usc.eduLocation: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Mayumi Thrasher
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor.
