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Events for February 05, 2016
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W.V.T. Rusch Engineering Honors Program Colloquium
Fri, Feb 05, 2016 @ 11:00 AM - 12:00 PM
USC Viterbi School of Engineering, Viterbi School of Engineering Student Affairs
University Calendar
Join us for a presentation by Dr. Nicolas Wey-Gomez, from CalTech, titled, "Columbus' Other Worlds, Faith, Science, and the Invention of a New Continent."
Location: Seeley G. Mudd Building (SGM) - 123
Audiences: Everyone Is Invited
Contact: Ramon Borunda/Academic Services
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An Information Theoretic Perspective of Cloud Radio Access Networks
Fri, Feb 05, 2016 @ 01:00 PM - 02:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Shlomo Shamai, Technion Israel Institute of Technology
Talk Title: An Information Theoretic Perspective of Cloud Radio Access Networks
Abstract: On Cloud Radio Access Networks: Information Theoretic Considerations Cloud radio access networks (C-RANs) emerge as appealing architectures for next-generation wireless/cellular systems whereby the processing/decoding is migrated from the local base-stations/radio units (RU) to a control/central units (CU) in the "cloud". This is facilitated by fronthaul links connecting the RUs to the managing CUs. We focus on oblivious processing at the RU, and hence the fronthaul links carry digital information about the baseband signals, in the uplink from the RUs to the CU and vice versa in the downlink. The high data rate service demands in C-RANs, imply that even with fast (optical) fronthauls, let alone for heterogeneous fronhauls, efficient compression of the basedand signals is essential. In this talk we focus on advanced robust signal processing solutions, emerging by network information theoretic concept and review also the basic approaches to this cloud network. Multi-hop fronthaul topologies are also discussed. Analysis and numerical results illustrate the considerable performance gains to be expected for different cellular models. Some interesting theoretical directions conclude the presentation.
Joint work with S.-H. Park (Chonbuk National University), O. Simeone (NJIT), and O. Sahin (InterDigital)
Biography: Shlomo Shamai (Shitz) received the B.Sc., M.Sc., and Ph.D. degrees in electrical engineering from the Technion---Israel Institute of Technology, in 1975, 1981 and 1986 respectively.
During 1975-1985 he was with the Communications Research Labs, in the capacity of a Senior Research Engineer. Since 1986 he is with the Department of Electrical Engineering, Technion---Israel Institute of Technology, where he is now a Technion Distinguished Professor, and holds the William Fondiller Chair of Telecommunications. His research interests encompasses a wide spectrum of topics in information theory and statistical communications.
Dr. Shamai (Shitz) is an IEEE Fellow, a member of the Israeli Academy of Sciences and Humanities and a foreign member of the US National Academy of Engineering. He is the recipient of the 2011 Claude E. Shannon Award and the 2014 Rothschild Prize in Mathematics/Computer Sciences and Engineering.
He has been awarded the 1999 van der Pol Gold Medal of the Union Radio Scientifique Internationale (URSI), and is a co-recipient of the 2000 IEEE Donald G. Fink Prize Paper Award, the 2003, and the 2004 joint IT/COM societies paper award, the 2007 IEEE Information Theory Society Paper Award, the 2009 and 2015 European Commission FP7, Network of Excellence in Wireless COMmunications (NEWCOM++, NEWCOM#) Best Paper Awards, the 2010 Thomson Reuters Award for International Excellence in Scientific Research, the 2014 EURASIP Best Paper Award (for the EURASIP Journal on Wireless Communications and Networking), and the 2015 IEEE Communications Society Best Tutorial Paper Award. He is also the recipient of 1985 Alon Grant for distinguished young scientists and the 2000 Technion Henry Taub Prize for Excellence in Research. He has served as Associate Editor for the Shannon Theory of the IEEE Transactions on Information Theory, and has also served twice on the Board of Governors of the Information Theory Society. He has served on the Executive Editorial Board of the IEEE Transactions on Information Theory
Host: Guiseppe Caire, caire@usc.edu
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 539
Audiences: Everyone Is Invited
Contact: Gerrielyn Ramos
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EE-EP Faculty Candidate - Owen Miller, Friday, February 5th at 2:00pm in EEB 132
Fri, Feb 05, 2016 @ 02:00 PM - 03:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Owen Miller, Massachusetts Institute of Technology
Talk Title: Design at the Nanoscale: Reaching the Limits of Wave-Matter Interactions
Abstract: Nanoscale devices are emerging for an increasing variety of technological applications. Photonics will play a critical role, and within three areas - photovoltaics, nanoparticle scattering, and radiative heat transfer - I will show how large-scale computational optimization and rigorous analytical frameworks enable rapid search through large design spaces, and spur discovery of fundamental limits to interactions between light and matter.
In photovoltaics, the famous ray-optical 4n^2 limit to absorption enhancement has for decades served as a critical design goal, and it motivated the use of quasi-random textures in commercial solar cells. I will show that at subwavelength scales, non-intuitive, computationally designed textures outperform random ones, and can closely approach the 4n^2 limit. Pivoting to metallic structures, where there has not been an analogous "4n^2" limit, I will show how energy-conservation principles lead to fundamental limits to the optical response of metals, answering a long-standing question about the tradeoff between resonant enhancement and material loss. The limits were stimulated by a computational discovery in nanoparticle optimization, where I will present theoretical designs and experimental measurements (by a collaborator) approaching the upper bounds of absorption and scattering. The energy-conservation principles can be extended to the emerging field of radiative heat transfer, where they generalize the ray-optical concept of a "blackbody" to the nanoscale.
Biography: Dr. Owen Miller is a postdoctoral research associate in MIT Applied Math, working with Steven Johnson. He received his PhD in 2012 from UC Berkeley, where he was advised by Eli Yablonovitch and selected as an NSF Graduate Fellow. He received bachelor's degrees in EE and physics from the Univ. of Virginia in 2007. His research interests center around leveraging large-scale computational optimization and theoretical analysis for nanoscale devices, especially for emerging energy applications.
Host: EE-EP
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Marilyn Poplawski
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NL Seminar-Deciphering Dark Web through k-partite Graph Summarization
Fri, Feb 05, 2016 @ 03:00 PM - 04:00 PM
Information Sciences Institute
Conferences, Lectures, & Seminars
Speaker: Linhong Zhu, USC/ISI
Talk Title: Deciphering Dark Web through k-partite Graph Summarization
Series: Natural Language Seminar
Abstract: Facts and their relations extracted from web are commonly modeled as graphs with different types of vertices. In this work, we focus on the problem of revealing latent entities from a $k$-partite graph, by co-clustering $k$ types of different vertices. We propose a CoSum approach, which creates a summary graph, where each super node (a cluster of original vertices) represents a hidden entity and the weighted edges encode important relations among extracted entities. The resulted summary graph also allows for investigation and interpretation of hidden entities. Evaluation verifies that CoSum outperforms several baselines in terms of entity coherence, query supporting and recovering hidden victims in the applied human trafficking domain.
Biography: Linhong Zhu is currently a computer scientist at Information Sciences Institute, University of Southern California, where she also received training as a Postdoctoral Research Associate. Before that, she worked as a Scientist-I in data analytics department at Institute for Infocomm Research, Singapore. She obtained her Ph.D. degree in computer engineering from Nanyang Technological University, Singapore in 2011. Her research interests are large-scale graph analytics with applications to social network analysis, social media analysis, and predictive modeling. She has been awarded with University of Southern California Postdoctoral travel and training award in 2014 and her paper has been selected as two of the best papers in SIGMOD 2010.
Host: Xing Shi and Kevin Knight
More Info: http://nlg.isi.edu/nl-seminar/
Location: Information Science Institute (ISI) - 6th Flr Conf Rm # 689, Marina Del Rey
Audiences: Everyone Is Invited
Contact: Peter Zamar
Event Link: http://nlg.isi.edu/nl-seminar/
