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Events Calendar



Events for the 1st week of February

  • Online Dynamic Robust PCA

    Mon, Feb 01, 2016 @ 10:00 AM - 11:00 AM

    Ming Hsieh Department of Electrical Engineering

    Conferences, Lectures, & Seminars


    Speaker: Prof. Namrata Vaswani, Electrical and Computer Engineering, Iowa State University

    Talk Title: Online Dynamic Robust PCA

    Abstract: We introduce a novel and provably correct solution approach, called ReProCS, to the online dynamic robust principal components' analysis (PCA) problem. Robust PCA (RPCA) can be understood as a problem of separating a low-rank matrix of the true data, L, and a sparse matrix of outliers, S, from their sum, Y = L + S. Application domains include computer vision and data analytics, among others. For example, the problem of separating sparse foregrounds (e.g., moving objects) from slowly changing backgrounds in video sequences can be posed as an instance of RPCA. This is a key first step in simplifying many computer vision tasks, e.g., video surveillance, low-bandwidth mobile video chats and video conferencing, low-light imaging ("seeing moving objects in the dark") and video denoising. RPCA solutions are also very useful in solving product recommender systems' design problems, such as the Netflix problem, when the user data may contain outliers (e.g., due to lazy or malicious users). While there has been a large amount of recent work on provably correct batch RPCA solutions, the online and dynamic RPCA problem is largely open. Online dynamic RPCA is the problem of solving RPCA on-the-fly, with the extra assumptions that the initial subspace is accurately known and that the subspace from which the true data is generated is either fixed or changes slowly over time. For most of the applications discussed above, an online solution is clearly preferable and it can be argued that these extra assumptions hold. We demonstrate the power of our proposed ReProCS based online dynamic RPCA solution for many of the above applications. Moreover, under mild assumptions, we show that, with high probability, ReProCS recovers the support of the outliers exactly at all times; the subspace in which the true data lies is tracked accurately; and the error in the estimates of both is small at all times.



    Host: Professor Mahdi Soltanolkotabi

    Location: 248

    Audiences: Everyone Is Invited

    Posted By: Talyia Veal

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  • Communications, Networks & Systems (CommNetS) Seminar

    Mon, Feb 01, 2016 @ 11:00 AM - 12:00 PM

    Ming Hsieh Department of Electrical Engineering

    Conferences, Lectures, & Seminars


    Speaker: Dr. Achilleas Anastasopoulos, Univ. of Michigan, Ann Arbor

    Talk Title: A systematic process for evaluating structured equilibria in dynamic games with asymmetric information

    Series: CommNetS

    Abstract: We consider problems involving multiple agents making decisions dynamically in the presence of asymmetric information.
    When agents have a common objective (dynamic decentralized teams) recent results have established a systematic framework for obtaining the optimal decision strategy that is akin to the well-known backward induction in partially observed Markov decision processes (POMDPs).
    However, when agents are strategic (dynamic games with asymmetric information) there is no known systematic process for evaluating the appropriate equilibria in a sufficiently general setting. The well-known backward induction process for finding sub-game perfect equilibria is useless in these problems and we are stuck with an indecomposable fixed-point equation in the space of strategies and beliefs.
    In this talk we will discuss a class of perfect Bayesian equilibria (PBE) that are the counterparts of Markov perfect equilibria (MPE) for asymmetric information games. The corresponding "state" is a belief based on the common information among agents.
    We will then propose a two-step backward-forward inductive algorithm to find these structured PBE. The backward inductive part of this algorithm defines an equilibrium generating function. Each period in the backward induction involves solving a "small" fixed point equation. Using this generating function, equilibrium strategies and beliefs are defined through a forward recursion.

    Biography: Achilleas Anastasopoulos received the Diploma in EE from the National Technical University of Athens, Greece in 1993, and the M.S. and Ph.D. degrees in EE from the University of Southern California in 1994 and 1999, respectively. He is currently an Associate Professor of EECS at the University of Michigan, Ann Arbor. His research interests lie in 1) the general area of communication and information theory, with emphasis in channel coding and multi-user channels; 2) control theory with emphasis in decentralized stochastic control and its connections to communications and information-theoretic problems; 3) analysis of dynamic games and mechanism design for resource allocation in networked systems.

    Host: Dr. Ashutosh Nayyar

    Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248

    Audiences: Everyone Is Invited

    Posted By: Annie Yu

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  • Seminars in Biomedical Engineering

    Mon, Feb 01, 2016 @ 12:30 PM - 01:49 PM

    Biomedical Engineering

    Conferences, Lectures, & Seminars


    Speaker: Dion Kai Dickman, PhD, Assistant Professor in Neurobiology, USC Dornsife

    Talk Title: Homeostatic control of sleep and synaptic plasticity

    Abstract: Homeostatic Control of Sleep and Synaptic Plasticity

    Summary
    Synapses have the remarkable ability to adaptively modulate synaptic strength in response to perturbations that would otherwise destabilize neurotransmission, referred to as homeostatic synaptic plasticity. Homeostatic signaling systems have emerged as robust and potent regulators of neural activity, enabling stable synaptic function while permitting the flexibility necessary for learning and memory, yet the molecules and mechanisms involved remain poorly understood. We have pioneered forward genetic approaches in Drosophila to identify genes required for homeostatic synaptic plasticity. We will first discuss an enigmatic protein complex that has emerged from this screen, which is associated with schizophrenia, and the role of this complex in synaptic function and homeostatic plasticity. We will then present data about how an individual synapse adapts to conflicting homeostatic perturbations to stable synaptic function. Finally, we are developing new tools, including translational profiling and light sheet microscopy, to reveal homeostatic adaptations to synaptic function, which may be linked to sleep, and ancient, essential, and fundamental homeostatic signaling system shared by all animal life.




    Biography: Bio
    Dion Dickman was born in Hawaii and did his undergraduate work at Washington University in St. Louis, studying synaptogenesis at the mouse neuromuscular junction in the lab of Joshua Sanes. He went to Harvard for graduate work and UCSF for his postdoctoral studies, performing electrophysiology-based, forward genetic screens in Drosophila, identifying new genes involved in synaptic development, function, and plasticity. He has recently started his own laboratory at the University of Southern California, where his group investigates how synaptic transmission is kept within stable physiological ranges in the nervous system, while still permitting the flexibility necessary for learning and memory. Using Drosophila as our model system, we are interested in the genes and molecular mechanisms that achieve and maintain the homeostatic control of synaptic strength, and how dysfunction in this process may contribute to neuropsychiatric disease. We are using a combination of genetic, electrophysiological, imaging, and behavioral approaches to gain insight into this complex and fundamental form of neural plasticity.

    http://dornsife.usc.edu/labs/dickmanlab
    Host: K. Kirk Shung, PhD

    Location: Olin Hall of Engineering (OHE) - 122

    Audiences: Everyone Is Invited

    Posted By: Mischalgrace Diasanta

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  • Faculty Candidate Seminar

    Mon, Feb 01, 2016 @ 01:00 PM - 02:00 PM

    Daniel J. Epstein Department of Industrial and Systems Engineering

    Conferences, Lectures, & Seminars


    Speaker: Private, Private

    Talk Title: Modeling Disease for Effective Control - Tuberculosis in India

    Host: Epstein Department of ISE

    Location: Ethel Percy Andrus Gerontology Center (GER) - 206

    Audiences: Everyone Is Invited

    Posted By: Michele ISE

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  • USC Stem Cell Seminar: Joanna Wysocka, Stanford University

    Tue, Feb 02, 2016 @ 11:00 AM - 12:00 PM

    Biomedical Engineering

    Conferences, Lectures, & Seminars


    Speaker: Joanna Wysocka, Professor of Chemical and Systems Biology, and Development Biology/Stanford Univeristy

    Talk Title: On peculiarities of being a human: Transcriptional regulation in human development and evolution

    Series: Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research at USC Distinguished Speakers Series

    Abstract: While studies in model organisms have led to great progress in unveiling the conserved mechanisms of gene regulation, many aspects of development that are unique to humans and other primates remain unexplored, as are regulatory principles underlying emergence of human-specific traits. I will discuss some of our recent progress in understanding transcriptional mechanisms governing human development and evolution, such as those involving the activity of transposable elements in early embryogenesis or our recent quantitative analyses of cis-regulatory divergence in the human and chimpanzee neural crest, an embryonic cell population that is most relevant for evolution of human craniofacial form.

    Host: Gage Crump

    More Info: http://stemcell.usc.edu/events/details/?event_id=916788
    Webcast: http://keckmedia.usc.edu/stem-cell-semina

    Location: Eli & Edythe Broad CIRM Center for Regenerative Medicine & Stem Cell Resch. (BCC) - First floor seminar room

    WebCast Link: http://keckmedia.usc.edu/stem-cell-seminar

    Audiences: Everyone Is Invited

    Posted By: Cristy Lytal/USC Stem Cell

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  • How Do Large Networks of Neurons Make Decisions?

    Tue, Feb 02, 2016 @ 02:00 PM - 03:30 PM

    Ming Hsieh Department of Electrical Engineering

    Conferences, Lectures, & Seminars


    Speaker: Bijan Pesaran, New York University

    Talk Title: How Do Large Networks of Neurons Make Decisions?

    Abstract: Abstract: Selecting and planning actions recruits neurons across many areas of the brain but how ensembles of neurons work together to make decisions is unknown. Temporally-coherentneural activity may provide a mechanism by which neurons coordinate their activity in order to make decisions. If so, neurons that are part of coherent ensembles may predict movement choices before other ensembles of neurons. We have been studying activity within the posterior parietal cortex while monkeys make choices about where to look and reach, by decoding the activity to predict the choices. We find that ensembles of neurons that display coherent patterns of spiking activity extending across the parietal cortex, ''dual coherent'' ensembles, predict movement choices substantially earlier than other neuronal ensembles. We propose that dual-coherent spike timing reflects interactions between groups of neurons that play an important role in how we make decisions. I will discuss this result in the context of models of larger scale brain circuits that make decisions. I will finish by presenting our latest efforts to develop new technologies and perform brain-scale investigations of the primate brain.

    Biography: Bijan Pesaran is Associate Professor of Neural Science at the Center for Neural Science at New York University. He is also member of NYUs Center for Neuroeconomics. Pesaran is an expert in neuronal dynamics and decision making and has pioneered the study of spike-field coherence in the non-human primate brain. His lab has developed large-scale neurophysiological circuit mapping capabilities to understand how behavior emerges from neuronal activity across interacting brain circuits. He has developed transformative multimodal technology to simultaneously record from single neurons, local potentials and micro-ECoG signals across the cortical layers directly below ECoG recording sites.

    Host: Maryam Shanechi

    Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132

    Audiences: Everyone Is Invited

    Posted By: Gloria Halfacre

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  • Epstein Institute Seminar - ISE 651

    Tue, Feb 02, 2016 @ 03:30 PM - 04:50 PM

    Daniel J. Epstein Department of Industrial and Systems Engineering

    Conferences, Lectures, & Seminars


    Speaker: Dr. Chaithanya Bandi, Kellogg School of Management

    Talk Title: Resource Allocation under Ambiguous Risk Preferences

    Host: Phebe Vayanos & Paat Rusmevichientong (Marshall)

    More Information: February 2, 2016.pdf

    Location: Ethel Percy Andrus Gerontology Center (GER) - 206

    Audiences: Everyone Is Invited

    Posted By: Michele ISE

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  • Albert Dorman Lecture Series

    Tue, Feb 02, 2016 @ 03:30 PM - 04:30 PM

    Sonny Astani Department of Civil and Environmental Engineering

    Conferences, Lectures, & Seminars


    Speaker: Lt. General Hank Hatch, Senior Advisor to the U.S. Army Corps of Engineers

    Talk Title: "Engineering a Sustainable Future"

    Host: Sonny Astani Department of Civil and Environmental Engineering

    More Information: ADLS Hank Hatch.pdf

    Location: Ronald Tutor Hall of Engineering (RTH) - 526

    Audiences: Everyone Is Invited

    Posted By: Kaela Berry

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  • Raytheon Information Session

    Tue, Feb 02, 2016 @ 06:00 PM - 07:30 PM

    Viterbi School of Engineering Career Services

    Workshops & Infosessions


    Raytheon is a global technology leader that provides innovative solutions to customers in 80 nations. We provide the most advanced technology in the world in the strategic business areas of Homeland Security, Missile Defense, Precision Engagement and Intelligence Surveillance Reconnaissance. Through strategic vision, disciplined management, and world-class talent, Raytheon is delivering operational advantages for customers everyday while helping them prepare for the missions of tomorrow.

    For more information, visit our website
    www.raytheon.com/campus

    An Equal Employment Opportunity Employer

    Location: Seeley G. Mudd Building (SGM) - 101

    Audiences: Everyone Is Invited

    Posted By: RTH 218 Viterbi Career Connections

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  • Aerospace and Mechanical Engineering Seminar Series

    Wed, Feb 03, 2016 @ 03:30 PM - 04:30 PM

    Aerospace and Mechanical Engineering

    Conferences, Lectures, & Seminars


    Speaker: Bala Ambati, Professor & Director of Corneal Research at the Moran Eye Center University of Utahrneal Research Moran Eye Center at the University of Utah

    Talk Title: Rays vs. Shadows: Fighting Global Blindness through Ophthalmic Genetics & Bioengineering

    Series: Aerospace and Mechanical Engineering Seminar Series

    Abstract: Over 30 million people are blind in both eyes, with another 200 million patients with significant loss of vision in one or both eyes. This is an unnecessary tragedy - 80% of this vision loss is preventable or treatable. Dr. Ambati share his journey in vision research and global health by showing how ocular biology and drug delivery can be married and employed to combat the principal challenges of our time in the world of vision - cataract, corneal scarring, macular degeneration, and diabetic retinopathy. He will his discuss his laboratory's innovations in drop-free cataract surgery, targeted intraceptor nanoparticles for macular degeneration and corneal transplant rejection, and neurovascular restoration in the diabetic retina. He will also lay out the landscape and opportunities in eye research and global blindness.

    Biography: Bala Ambati is a cornea specialist with a research focus in angiogenesis. Dr. Ambati's team is presently focused on the role of sFlt-1 in maintaining ocular vascular demarcations, work which was awarded the 2012 ARVO/Genentech Award for Research in Macular Degeneration, the 2013 Troutman-Veronneau Prize & the 2014 Ludwig von Sallmann Clinician-Scientist Award. Clinically, Dr. Ambati was the first to describe use of bevacizumab (Avastin) to treat corneal transplant rejection. He has developed key surgical innovations and is developing transformational ocular drug delivery implants which will serve as a versatile platform for treating macular degeneration, glaucoma, and other diseases by sustained release of multiple drugs from within the lens capsule. Dr. Ambati has been recognized for his teaching excellence by a University of Utah Resident Research Mentor Award, the Gold Humanism Award, and by serving as an Instructor at the Harvard Cataract Course for 2009 and 2010.

    Host: Dr. Anita Penkova

    Location: Seaver Science Library (SSL) - 150

    Audiences: Everyone Is Invited

    Posted By: Valerie Childress

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  • Pure Storage Information Session

    Wed, Feb 03, 2016 @ 06:00 PM - 07:30 PM

    Viterbi School of Engineering Career Services

    Workshops & Infosessions


    Not familiar with Pure Storage? We are a fast growing company in the heart of the Silicon Valley, whose engineers are disrupting a $15 billion annual (and growing) market for enterprise storage. Our tech talk will explore the current storage landscape along with the rise of flash storage in the consumer and enterprise space. We will explain the importance of customizing software for flash storage and dive into the guiding principles of our Purity software. You'll learn about data redundancy & integrity, how we do data reduction, and get an overview of the many interesting problems that Pure faces at scale. You'll also get to hear from a USC alum about what it's like to work on Pure's world class engineering team.

    More Information: Pure Storage Tech Talk.pdf

    Location: Seeley G. Mudd Building (SGM) - 101

    Audiences: Everyone Is Invited

    Posted By: RTH 218 Viterbi Career Connections

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  • ASBME GM 6: Premed/BME Life

    Wed, Feb 03, 2016 @ 07:00 PM - 08:00 PM

    Viterbi School of Engineering Student Organizations

    Student Activity


    Everyone who's still pre-med should come to hear Dr. Jacobs speak about his past BME background, including a PhD before going to medical school. There will be a Q&A after the presentation, so please come prepared with any questions you may have.

    Location: Kaprielian Hall (KAP) - 156

    Audiences: Everyone Is Invited

    Posted By: Associated Students of Biomedical Engineering

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  • First Code Academy Information Session

    Thu, Feb 04, 2016 @ 12:00 PM - 01:00 PM

    Viterbi School of Engineering Career Services

    Workshops & Infosessions


    First Code Academy founder and CEO, Michelle Sun, will be sharing about the startup's vision and goal - which is to empower our next generation in Asia to become creators with technology, through teaching computer programming. She will also share about the opportunities at the startup, including summer internships and graduate opportunities.

    Location: Ronald Tutor Hall of Engineering (RTH) - 211

    Audiences: Everyone Is Invited

    Posted By: RTH 218 Viterbi Career Connections

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  • Additive Manufacturing of Metals: Building Unreliable Microstructures 20 Microns at a Time

    Thu, Feb 04, 2016 @ 12:45 PM - 02:00 PM

    Mork Family Department of Chemical Engineering and Materials Science

    Conferences, Lectures, & Seminars


    Speaker: Professor Lyle Levine, National Institute of Standards and Technology

    Talk Title: Additive Manufacturing of Metals: Building Unreliable Microstructures 20 Microns at a Time

    Series: Graduate Seminar

    Abstract: Additive manufacturing of metals could revolutionize the design and production of complex, high value metal parts. However, the extreme processing conditions of, essentially, welding millions of microscopic bits of metal together, create deleterious microstructures with high stresses, extreme compositional gradients, non-equilibrium phases, and a variety of potentially disastrous build flaws. How can the processing and post processing treatments be optimized to produce useable and consistent microstructures and mechanical properties? We are developing a comprehensive methodology to answer three questions: what is there?, why is it there?, and how can
    we fix what is there? To optimize the build and post build processing steps, we are developing and using a combination of multicomponent computational thermodynamic and kinetic microstructural evolution simulations, finite element models, and worldleading stress and microstructure characterization methods using synchrotron X-rays, neutrons, and lab based measurements. I will describe our progress in our first target
    systems, Ni-based super alloys and steels.

    Location: James H. Zumberge Hall Of Science (ZHS) - 159

    Audiences: Everyone Is Invited

    Posted By: Martin Olekszyk

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  • Faculty Candidate Seminar

    Thu, Feb 04, 2016 @ 01:00 PM - 02:00 PM

    Daniel J. Epstein Department of Industrial and Systems Engineering

    Conferences, Lectures, & Seminars


    Speaker: Private, Private

    Talk Title: Control of Contagin Processes on Networks

    Host: Epstein Department of ISE

    Location: Ethel Percy Andrus Gerontology Center (GER) - 206

    Audiences: Everyone Is Invited

    Posted By: Michele ISE

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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

    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

    Posted By: 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 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

    Posted By: 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 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

    Posted By: 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

    Posted By: Peter Zamar

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