October 2024 - Ececourtesy-list

CCAM seminar 11:30-12:30 Friday on Large-Scale Low-rank Optimization
by Scutari, Gesualdo 28 Oct '24

28 Oct '24

FYI Please contact Zhang, Xiangxiong (zhan1966(a)purdue.edu) by Wed if you are interested in meeting with Richard. Time: Friday, 11:30 AM - 12:20 PM Location: LWSN 1106 Speaker: Richard Zhang<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fryz.ece.i…>, Electrical and Computer Engineering, UIUC Title: Rank Overparameterization and Chordal Conversion for Large-Scale Low-rank Optimization Abstract: Optimization problems over low-rank matrices are ubiquitous in the real-world. In principle, these can be reliably solved to global optimality via convex relaxation, but the computational costs can become prohibitive on a large scale. In practice, it is much more common to optimize over the low-rank matrices directly, as in the Burer-Monteiro approach, but their nonconvexity can cause failure by getting stuck at a spurious local minimum. For safety-critical societal applications, such as the operation and planning of an electricity grid, our inability to reliably achieve global optimality can have significant real-world consequences. In the first part of this talk, we investigate global optimality guarantees by overparameterizing the low-rank factorization. In the smooth and strongly-convex setting, we rigorously show that, as the rank is increased, spurious local minima become increasingly rare in a step-wise fashion. In other words, rank-2 has fewer spurious local minima than rank-1, and rank-3 has fewer than rank-2, etc. Once the rank exceeds an O(1) threshold, every remaining local minimum is a global minimum, and every saddle point can be escaped. In the second part of this talk, we revisit convex relaxations. Here, chordal conversion is a heuristic widely used to reduce the per-iteration cost of interior-point methods to as low as linear time, but a theoretical explanation for this speedup was previously unknown. We give a sufficient condition for the speedup, which covers many successful applications of chordal conversion, including the MAX-k-CUT relaxation, the Lovász Theta problem, sensor network localization, polynomial optimization, and the AC optimal power flow relaxation, thus allowing theory to match practical experience. Main related papers: https://arxiv.org/abs/2207.01789<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Farxiv.org…> https://arxiv.org/abs/2306.15288<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Farxiv.org…>

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ECE Distinguished Lecture - David Miller, Stanford University - Friday, October 18 at 10 am in MSEE 112
by McKinniss, Loretta F 17 Oct '24

17 Oct '24

Zoom Link https://purdue-edu.zoom.us/j/99565354473<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpurdue-ed…> Meeting ID: 995 6535 4473 [cid:image001.png@01DB1FAA.2A486310] Loretta McKinniss | Administrative Assistant Elmore Family School of Electrical and Computer Engineering Purdue University 501 Northwestern Avenue, Rm 268 West Lafayette, Indiana 47907 Office: (765) 494-3558 https://engineering.purdue.edu/ECE [Purdue University, 150 years of Purdue Engineering]

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REMINDER: Fri, Oct 18, 12:45P, PurPL Seminar: Rachit Nigam, Asst Prof/MIT: Modular Abstractions for Hardware Design, PGSC 105
by Satterfield, Mary Ann 17 Oct '24

17 Oct '24

Good morning! Meeting slots still open are 11:00 A.M., 11:30 A.M., and 2:30 P.M. There is also room for lunch and dinner. Any takers? ________________________________ For those of you interested in meeting with Dr. Nigam, please feel free to place your name and office/meeting place on his itinerary<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.goog…>. Host: Jenna DiVincenzo, jennad(a)purdue.edu<mailto:jennad@purdue.edu> [cid:image001.png@01DB1B1D.499DC700] Mary Ann Satterfield Lead Administrative Assistant Elmore Family School of Electrical and Computer Engineering Max W. and Maileen Brown Hall of Electrical Engineering 465 Northwestern Ave., BHEE 325B West Lafayette, IN 47907 o: 765-494-6389 m: 765-490-6392 f: 765-494-2706 [cid:image002.png@01DB1B1D.499DC700]<https://www.purdue.edu/?utm_source=signature&utm_medium=email&utm_campaign=…>

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TODAY, Wed, Oct 16, 1:30P, MSEE 112: Cong "Callie" Hao/GA Tech: Agile Hardware Development: Architecture and Tools
by Satterfield, Mary Ann 16 Oct '24

16 Oct '24

Zoom: https://purdue-edu.zoom.us/j/94973791194<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpurdue-ed…> Host: Lu Su, lusu(a)purdue.edu<mailto:lusu@purdue.edu> [cid:image001.png@01DB1C1D.834E07C0] Mary Ann Satterfield Lead Administrative Assistant Elmore Family School of Electrical and Computer Engineering Max W. and Maileen Brown Hall of Electrical Engineering 465 Northwestern Ave., BHEE 325B West Lafayette, IN 47907 o: 765-494-6389 m: 765-490-6392 f: 765-494-2706 [cid:image002.png@01DB1C1D.834E07C0]<https://www.purdue.edu/?utm_source=signature&utm_medium=email&utm_campaign=…>

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David Miller from Stanford University ECE Distinguished Lecture Friday, Oct 18 10 am in MSEE 112
by McKinniss, Loretta F 15 Oct '24

15 Oct '24

Zoom Link https://purdue-edu.zoom.us/j/99565354473<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpurdue-ed…> Meeting ID: 995 6535 4473 [cid:image003.jpg@01DB1598.610B3BA0] Loretta McKinniss | Administrative Assistant Elmore Family School of Electrical and Computer Engineering Purdue University 501 Northwestern Avenue, Rm 268 West Lafayette, Indiana 47907 Office: (765) 494-3558 https://engineering.purdue.edu/ECE [Purdue University, 150 years of Purdue Engineering]

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ECE Distinguished Lecture Today, Tuesday, October 15 at 4 pm in MSEE 112
by McKinniss, Loretta F 15 Oct '24

15 Oct '24

Zoom Link https://purdue-edu.zoom.us/j/92768097769<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpurdue-ed…> Meeting ID: 927 6809 7769 [cid:image002.png@01DB1ED4.743C4AD0] Loretta McKinniss | Administrative Assistant Elmore Family School of Electrical and Computer Engineering Purdue University 501 Northwestern Avenue, Rm 268 West Lafayette, Indiana 47907 Office: (765) 494-3558 https://engineering.purdue.edu/ECE [Purdue University, 150 years of Purdue Engineering]

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Wed, Oct 16, 1:30P, MSEE 112: Cong "Callie" Hao/GA Tech: Agile Hardware Development: Architecture and Tools
by Satterfield, Mary Ann 11 Oct '24

11 Oct '24

If anyone would like to meet with our guest, you may sign up here<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.goog…>. Host: Lu Su, lusu(a)purdue.edu<mailto:lusu@purdue.edu> [cid:image001.png@01DB1C1D.834E07C0] Mary Ann Satterfield Lead Administrative Assistant Elmore Family School of Electrical and Computer Engineering Max W. and Maileen Brown Hall of Electrical Engineering 465 Northwestern Ave., BHEE 325B West Lafayette, IN 47907 o: 765-494-6389 m: 765-490-6392 f: 765-494-2706 [cid:image002.png@01DB1C1D.834E07C0]<https://www.purdue.edu/?utm_source=signature&utm_medium=email&utm_campaign=…>

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CCAM Colloquium on Oct 18: Dr. Wotao Yin, Decision Intelligence Lab, DAMO Academy of Alibaba Group in the U.S.
by Scutari, Gesualdo 11 Oct '24

11 Oct '24

CCAM Colloquium on Oct 18 Time and Location: 11:30-12:30, Oct 18, LILY 3118 Speaker: Dr. Wotao Yin<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwotaoyin.…>, Decision Intelligence Lab, DAMO Academy of Alibaba Group in the U.S. Title: From Academia to Industry: Bridging Mathematical Rigor with Scalable Industrial Solutions Abstract: After 15 years as a math professor, I transitioned to an industrial lab where R&D integrates with engineering, marketing, and sales. We focus on delivering efficient, scalable algorithmic solutions to real-world challenges. This talk will highlight how we manage uncertainties like load and renewable energy prediction by combining machine learning and optimization techniques, and how we solve large-scale optimization problems to ensure safe and economical grid operations. Finally, I’ll discuss how we blend academic rigor with industry needs for rapid, impactful results. Bio: Dr. Wotao Yin is a Scientist, Principal Engineer at DAMO Academy of Alibaba Group in the U.S., where he leads the Decision Intelligence Lab. He obtained his Ph.D. in Operations Research in Columbia. Prior to joining DAMO Academy, he was a professor in the Department of Mathematics at UCLA. He received an NSF CAREER Award, an Sloan Research Award, the Morningstar Medal in Applied Mathematics, the DAMO Award, and the Egon Balas Award in 2021. Since 2018, Clarivate Analyese has been listed him as one of the world’s 1% highly cited scholars. His research interests include explainable and controllable decision models, computational optimization algorithms and software, and their applications in signal processing, machine learning, and other data science problems.

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Fri, Oct 18, 12:45P, PurPL Seminar: Rachit Nigam, Asst Prof/MIT: Modular Abstractions for Hardware Design, PGSC 105
by Satterfield, Mary Ann 11 Oct '24

11 Oct '24

For those of you interested in meeting with Dr. Nigam, please feel free to place your name and office/meeting place on his itinerary<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.goog…>. Host: Jenna DiVincenzo, jennad(a)purdue.edu<mailto:jennad@purdue.edu> [cid:image001.png@01DB1B1D.499DC700] Mary Ann Satterfield Lead Administrative Assistant Elmore Family School of Electrical and Computer Engineering Max W. and Maileen Brown Hall of Electrical Engineering 465 Northwestern Ave., BHEE 325B West Lafayette, IN 47907 o: 765-494-6389 m: 765-490-6392 f: 765-494-2706 [cid:image002.png@01DB1B1D.499DC700]<https://www.purdue.edu/?utm_source=signature&utm_medium=email&utm_campaign=…>

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Re: [Ececourtesy-list] ECE Distinguished Lecture, Hai Li, Duke University, Friday, Oct. 11 at 10:30 am in Potter, Fu Room (Rm 234)
by McKinniss, Loretta F 11 Oct '24

11 Oct '24

Zoom Link: https://purdue-edu.zoom.us/j/99210875121<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpurdue-ed…> Meeting ID: 992 1087 5121 [cid:image002.png@01DB1AF4.D347EBD0] Loretta McKinniss | Administrative Assistant Elmore Family School of Electrical and Computer Engineering Purdue University 501 Northwestern Avenue, Rm 268 West Lafayette, Indiana 47907 Office: (765) 494-3558 https://engineering.purdue.edu/ECE [Purdue University, 150 years of Purdue Engineering]

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