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Conferences, Lectures, & Seminars
Events for September
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Fast Optical Disk Drives †Letting Light Do the Walking
Tue, Sep 04, 2007 @ 11:00 AM - 12:00 AM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
I. (Shelly) Glaser, Ph.D.
Holon Institute of Technology
Dept. Electrical and Electronic EngineeringAbstract:
From the early days of Laser-Discs, there were great hopes for optical disk storage; some claimed it would eventually replace magnetic disk storage. Indeed optical disc storage combines very high capacity with reliable removable media. Nevertheless, with one exception (Steve Jobs' Next computer), all computers still use magnetic hard disk drives. Optical discs are widely used for data and software distribution, data transfer media, and, of course, entertainment, but not as HDD replacement. They are just too slow. Here we shall review two approaches for fast optical disk drives. The first uses parallel access for fast raw data transfer. The other uses optical scanning to obtain very short access times. For the fast access approach we shall discuss design issues and solutions.About the Speaker:
I. (Shelly) Glaser received his Ph.D. from the Weizmann Institute of Science. He served as an associate professor at the Faculty of Physics of the Weizmann Institute of Science, and the Faculty of Engineering at Tel Aviv University, and as a visiting faculty member at the USC/SIPI. Later he became the Chief Scientist of Holo-Or Ltd., Israel, a technical/scientific consultant to key high-tech companies in Israel and Europe, and the founder and CTO of a start-up company that developed fast-seek optical disc drive technology. He is now with the Holon Institute of Technology. Shelly Glaser's professional interest includes, besides optical storage, 3-D imaging and display, sensing for machine vision, information optics, holography and diffractive optics, medical imaging and non-conventional optical systems.Hosts: Prof. Alexander Sawchuk and Prof. Keith JenkinsLocation: 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. -
Exploring Delay Tolerant Applications
Fri, Sep 07, 2007 @ 03:00 PM - 04:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
SPEAKER: Prof. Mehul Motani, National University of SingaporeABSTRACT: Handheld devices such as mobile phones and PDAs have evolved into multi-functional platforms with significant computational, storage and networking capabilities. Device manufacturers are also embedding tiny sensors into these devices for environmental and personal health monitoring. The natural question in this context is how to share the data stored on these devices. In delay tolerant applications, query propagation and information access is via opportunistic exchange of information amongst mobile devices in proximity of one another.In this talk, we will explore the design space of delay tolerant applications. Understanding user interactions is essential to designing efficient algorithms and enhancing user experience. We will describe experiments carried out on campus to glean human contact patterns and the lessons learned. To effect information exchange, mobile devices need to become aware of other devices in their environment. This device discovery process is energy intensive and motivates the need for energy efficient contact probing mechanisms. We will discuss recent results on the design of algorithms which offer a favorable trade-off between energy and performance.BIO:
Mehul Motani is an Assistant Professor in Electrical and Computer Engineering at the National University of Singapore. He graduated with a PhD from Cornell University. Prior to that, he was a member of technical staff at Lockheed Martin in Syracuse, New York for over four years. Recently he has been working on research problems which sit at the boundary of information theory, communications and networking, including the design of wireless ad-hoc and sensor network systems. He was awarded the Intel Foundation Fellowship for work related to his PhD in 2000, won the Telecom Italia prize at Simagine 2003 and advanced to the Semifinals at Startup@Singapore 2005. He has been on the organizing committees for ISIT 2006 & 2007 and the technical program committees of MobiCom 2007, Infocom 2008, SECON 2008 and other conferences. He participates actively in IEEE & ACM/Sigmobile and has served as the secretary of the IEEE Information Theory Society Board of Governors.Host: 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. -
Image Reconstruction and Lesion Detection Using PET
Mon, Sep 17, 2007 @ 02:00 PM - 03:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Image Reconstruction and Lesion Detection Using PETQuanzheng Li
Research Associate, University of Southern CaliforniaHost: Krishna NayakAbstract:

Due to the tremendous success of the human genome project, human 
health care has emerged into an era of molecular and personal medicine, in
 which molecular imaging plays a key role. Among all the molecular imaging 
modalities, Positron Emission Tomography (PET) has a prominent position 
because of its flexibility and sensitivity. In this talk I will present our
 work on developing fast and accurate 3D and 4D image reconstruction methods
 for PET. After briefly summarize our work on static reconstruction, I will 
focus on dynamic reconstruction and introduce a fast globally convergent
fully 4D incremental gradient algorithm to estimate the continuous-time
 tracer density from list mode PET data. In the second part of the talk, I
 will describe a matched subspace detection method that uses the time
 activity curve (TAC) to distinguish tumors from background in dynamic FDG
PET, and then propose a Gaussian Random Filed (GRF) method with a given
 family wise error rate (FWER) to threshold the matched subspace detection
 statistic map. 

Biography:
Dr. Li is a Research Associate in Electrical Engineering at the University
 of Southern California. He received his BS from Zhejiang University, China
in 1997, his MS from Tsinghua University, China in 2000, and his PhD in 
Electrical Engineering from University of Southern California in 2005. His
 current research interests lie in applying signal and image processing
 theory to solve computational problems in molecular imaging.
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Alma Hernandez
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. -
The Optimality of Two Prices: Maximizing Revenue in a Stochastic Network
Tue, Sep 18, 2007 @ 03:30 PM - 04:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
SPEAKER: Mr. Longbo Huang, PhD Candidate, USCABSTRACT: This paper considers the problem of pricing and transmission scheduling for an Access Point (AP) in a wireless mesh network, where the AP provides services to a set of mobile users. The goal of the AP is to maximize its own time-average profit. We first obtain the optimum time-average profit of
the AP and prove the "Optimality of Two Prices" Theorem. We then develop an online scheme that jointly solves the pricing and transmission scheduling problem in a dynamic environment. The scheme uses an admission price and a business decision as tools to regulate the incoming traffic and to maximize revenue. We show the scheme can achieve any average profit that is arbitrarily close to the optimum, with a tradeoff in average delay. This holds for general Markovian dynamics for channel and user state variation, and does not require a-priori knowledge of the Markov model.BIO: Longbo Huang received his B.E. and M.S. degree in Electrical Engineering from Sun Yet-sen University, China, in 2003 and Columbia University in 2004, respectively. He is currently working toward his Ph.D. degree at USC. His research interests are in the areas of queueing theory and stochastic network optimization.Host: Prof. Michael NeelyLocation: Hughes Aircraft Electrical Engineering Center (EEB) - 539
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. -
Image Processing in the Block DCT space
Tue, Sep 25, 2007 @ 11:00 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Jayanta Mukherjee, Ph.D.
IIT Kharagpur
Dept. of Electronics and Electrical
Communication EngineeringAbstract:
In many applications, images in the compressed domain are used for the purpose of storage and communication. Typically, DCT based JPEG compression is mostly popular in such cases. For processing such images using conventional spatial domain techniques, one would require to decompress them and apply those techniques. Further, the processed images are required to be compressed again for their storage or communication. To avoid this overhead of decompression and compression, many algorithms are being developed for computing directly in the block DCT space. In this talk, some of these algorithms outlining their design principles will be discussed. Their applications towards image resizing, filtering and transcoding will also be presented. About the Speaker:
Dr. Jayanta Mukhopadhyay (Mukherjee) has done his PhD. in the year 1990 from IIT, Kharagpur from the Dept. of Electronics and Electrical Communication Engineering in the field of Image processing. He has also done his M.Tech and B.tech from IIT, kharagpur in 1987 and 1985 respectively from the same department. His fields of interest include Image Processing, Pattern Recognition, Computer Graphics and Multimedia Systems. He served in various technical programme committees of national and international conferences. He visited University of California, Santa Barbara, USA in the summers of 2000, 2001, 2003 and 2004. He also visited the Institute for Man Machine and Communication, Technical University of Munich (TUM), Germany, for one year in 2002 as a Humboldt research fellow. He served as the head of the Computer and Informatics Center, IIT, Kharagpur from September, 2004 to July, 2007. He is a professor in the Department of Computer Science and Engineering, IIT Kharagpur. Presently, he is visiting USC under the USC-IIT Kharagpur exchange programme.Host: Prof. C-C Jay Kuo
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.
