Conferences, Lectures, & Seminars
Events for July
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Ph.D. Defense: "Thermal Analysis and Multiobjective Optimization for Three Dimensional Integrated Circuits"
Mon, Jul 15, 2013 @ 03:00 PM - 05:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Fatemeh Kashfi, PhD Student, Electrical Engineering, USC Viterbi School of Engineering
Talk Title: THERMAL ANALYSIS AND MULTIOBJECTIVE OPTIMIZATION FOR THREE DIMENSIONAL INTEGRATED CIRCUITS
Abstract: Three Dimensional Integrated Circuit (3DIC) technology has been introduced to address the interconnect issues in nanometer circuit design that limit performance improvement and power reduction. However, stacking active layers of silicon leads to increased power density and overall higher temperatures in a 3D chip implementation for many designs. New thermal map modeling, and temperature measurement, mitigation and management techniques should be introduced for this technology. In this dissertation we study the thermal correlation between the stacked layers in 3DICs. We then propose a fast and efficient 3D thermal map modeling based on scaled hotspot areas, depending on the distance of a stacked layer from the heatsink and also thermal effects of the layers on each other. The efficiency of the proposed modeling is demonstrated with its use in a thermal sensor distribution algorithm. We also show that the thermal sensor distribution algorithm should be solved as a 3D problem. We furthermore propose a new 3D design for thermal sensor circuits to be shared between layers in a 3DIC.
We also study different methods of multiobjective optimization to find the optimum operating point of a VLSI circuit. We provide wide mathematical analyses of different multiobjective optimization techniques for this purpose. We also study the difference of convex and non-convex modeling of the objectives in the multiobjective optimization algorithms. We apply our multiobjective optimization methods to optimize three conflicting objectives of cost, performance and thermal reliability to find an optimum building block placement in 3DICs. The variables for the optimization are the number of layers, area of the 3DIC, position of the building blocks, number of TSVs and total wirelength. We use our proposed fast 3D thermal map modeling to eliminate the thermal analysis bottleneck in multiobjective optimization iterations.
Biography: Fatemeh Kashfi received her Bacholar of Sceince and Master of Science in Electrical Engineering from University of Tehran in 2005 and 2008 respectively. She joined University of Southern California in 2008 where she is currently pursuing a Ph.D. degree. From August 2010 to January of 2011, she interned at Intel Corporation in Hillsboro, Oregon. Her research interests include 3DIC design and analysis and power and thermal analysis in VLSI circuits.
Host: Professor Jeff Draper
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Janice Thompson
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. -
Fast MR Imaging Techniques and Applications to the Brain and Spine
Thu, Jul 18, 2013 @ 10:00 AM - 11:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Novena Rangwala, PhD, Harvard University, Beth Israel Deaconess Medical Center
Talk Title: Fast MR Imaging Techniques and Applications to the Brain and Spine
Series: Medical Imaging Seminar Series
Abstract: For the talk, I plan to cover projects that I worked on at BIDMC - Harvard, as well as at UIC. So there's some variation in topics, but essentially I will be discussing my technical development experiences with fast imaging techniques (e.g., in FSE, EPI, PROPELLER, etc.), resolution of related artifacts, and some applications of these sequences.
Biography: Dr. Rangwala is a Postdoctoral Research Associate at the Beth Israel Deaconess Medical Center, Harvard University, working in the laboratory of Dr. David Alsop. Prior to that she was a PhD student at University of Illinois, Chicago, working in the laboratory of X. Joe Zhou.
Host: Professor Krishna Nayak
Location: Hughes Aircraft Electrical Engineering Center (EEB) -
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. -
Fast MR Imaging Techniques and Applications to the Brain and Spine
Thu, Jul 18, 2013 @ 10:00 AM - 11:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Novena Rangwala, PhD, Harvard University, Beth Israel Deaconess Medical Center
Talk Title: Fast MR Imaging Techniques and Applications to the Brain and Spine
Series: Medical Imaging Seminar Series
Abstract: For the talk, I plan to cover projects that I worked on at BIDMC - Harvard, as well as at UIC. So there's some variation in topics, but essentially I will be discussing my technical development experiences with fast imaging techniques (e.g., in FSE, EPI, PROPELLER, etc.), resolution of related artifacts, and some applications of these sequences.
Biography: Dr. Rangwala is a Postdoctoral Research Associate at the Beth Israel Deaconess Medical Center, Harvard University, working in the laboratory of Dr. David Alsop. Prior to that she was a PhD student at University of Illinois, Chicago, working in the laboratory of X. Joe Zhou.
Host: Professor Krishna Nayak
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. -
Fast MR Imaging Techniques and Applications to the Brain and Spine
Thu, Jul 18, 2013 @ 11:00 AM - 11:00 AM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Novena Rangwala, PhD, Harvard University, Beth Israel Deaconess Medical Center
Talk Title: Fast MR Imaging Techniques and Applications to the Brain and Spine
Series: Medical Imaging Seminar Series
Abstract: For the talk, I plan to cover projects that I worked on at BIDMC - Harvard, as well as at UIC. So there's some variation in topics, but essentially I will be discussing my technical development experiences with fast imaging techniques (e.g., in FSE, EPI, PROPELLER, etc.), resolution of related artifacts, and some applications of these sequences.
Biography: Dr. Rangwala is a Postdoctoral Research Associate at the Beth Israel Deaconess Medical Center, Harvard University, working in the laboratory of Dr. David Alsop. Prior to that she was a PhD student at University of Illinois, Chicago, working in the laboratory of X. Joe Zhou.
Host: Professor Krishna Nayak
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. -
Fast MR Imaging Techniques and Applications to the Brain and Spine
Thu, Jul 18, 2013 @ 11:00 AM - 11:00 AM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Novena Rangwala, PhD, Harvard University, Beth Israel Deaconess Medical Center
Talk Title: Fast MR Imaging Techniques and Applications to the Brain and Spine
Series: Medical Imaging Seminar Series
Abstract: For the talk, I plan to cover projects that I worked on at BIDMC - Harvard, as well as at UIC. So there's some variation in topics, but essentially I will be discussing my technical development experiences with fast imaging techniques (e.g., in FSE, EPI, PROPELLER, etc.), resolution of related artifacts, and some applications of these sequences.
Biography: Dr. Rangwala is a Postdoctoral Research Associate at the Beth Israel Deaconess Medical Center, Harvard University, working in the laboratory of Dr. David Alsop. Prior to that she was a PhD student at University of Illinois, Chicago, working in the laboratory of X. Joe Zhou.
Host: Professor Krishna Nayak
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. -
Low Rank, Sparsity and Beyond: Novel Adaptive Reconstruction Algorithms for Highly Accelerated Dynamic MRI
Wed, Jul 24, 2013 @ 10:00 AM - 11:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Sajan Lingala,Ph.D., University of Iowa
Talk Title: Low Rank, Sparsity and Beyond: Novel Adaptive Reconstruction Algorithms for Highly Accelerated Dynamic MRI
Series: Medical Imaging Seminar Series
Abstract: The imaging of dynamically evolving phenomena is central to several magnetic resonance imaging (MRI) applications. The simultaneous acquisition of high spatio-temporal resolutions, extended volume coverage, good signal to noise is often challenging in dynamic MRI due to the MR hardware limitations and the risk of peripheral nerve stimulation. The main focus of this talk is to introduce novel blind or adaptive signal models to enable reconstruction from highly undersampled measurements. I will start by describing conventional compressed sensing models that utilizes ââ¬Åfixed basesââ¬Â; discuss its challenges, and motivate why using "adaptive bases" would be beneficial. I shall then describe our contributions on adaptive models that include low rank and sparsity based modeling, blind compressed sensing, and motion compensated compressed sensing. I shall also show representative dynamic MRI applications including free breathing cardiac perfusion MRI, and parametric mapping that benefit from the acceleration provided by the proposed techniques.
Biography: Sajan Lingala completed his Masters in Biomedical Engineering at the Indian Institute of Technology Bombay (India). He is currently working towards his Phd at the University of Iowa with his thesis focused on developing novel image reconstruction algorithms for accelerated MR imaging. He is a recipient of American Heart Association predoctoral fellowship award, and a best graduate student award at the Iowa institute of Biomedical Imaging.
Host: Prof. Yoon Chul Kim
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.
