November 2024 - Colo - huji-cs listserver

CS Colloquium (18/11): Yonina Eldar (Weizmann Institute of Science)
by Amir Gilad 12 Nov '24

12 Nov '24

Dear all, Next week, we have the pleasure of hosting Prof. Yonina Eldar (Weizmann Institute of Science) at our CS colloquium. The title and abstract of the talk, as well as a short bio of the speaker appear below. The seminar will be held on Monday, November 18th at 14:00 (refreshments at 13:45). *Location*: Romm C220, Rothberg Building. Looking forward to seeing you, Amir and Moshe =============================== *Speaker: *Prof. Yonina Eldar <https://www.weizmann.ac.il/math/yonina/> (Weizmann Institute of Science) *Title*: Model Based Deep Learning: Applications to Imaging and Communication *Abstract*: Deep neural networks provide unprecedented performance gains in many real-world problems in signal and image processing. Despite these gains, the future development and practical deployment of deep networks are hindered by their black-box nature, i.e., a lack of interpretability and the need for very large training sets. On the other hand, signal processing and communications have traditionally relied on classical statistical modeling techniques that utilize mathematical formulations representing the underlying physics, prior information and additional domain knowledge. Simple classical models are useful but sensitive to inaccuracies and may lead to poor performance when real systems display complex or dynamic behaviour. Here we introduce various approaches to model based learning which merge parametric models with optimization tools and classical algorithms leading to efficient, interpretable networks from reasonably sized training sets. We will consider examples of such model-based deep networks to image deblurring, image separation, super resolution in ultrasound and microscopy, radar for clinical applications, efficient communication systems, and more. *Bio: *Yonina Eldar is a Professor in the Department of Mathematics and Computer Science, Weizmann Institute of Science, Rehovot, Israel where she heads the center for Biomedical Engineering and Signal Processing and holds the Dorothy and Patrick Gorman Professorial Chair. She is also a Visiting Professor at MIT, a Visiting Scientist at the Broad Institute, and an Adjunct Professor at Duke University and was a Visiting Professor at Stanford. She is a member of the Israel Academy of Sciences and Humanities, an IEEE Fellow and a EURASIP Fellow. She received the B.Sc. degree in physics and the B.Sc. degree in electrical engineering from Tel-Aviv University, and the Ph.D. degree in electrical engineering and computer science from MIT, in 2002. She has received many awards for excellence in research and teaching, including the IEEE Signal Processing Society Technical Achievement Award (2013), the IEEE/AESS Fred Nathanson Memorial Radar Award (2014) and the IEEE Kiyo Tomiyasu Award (2016). She was a Horev Fellow of the Leaders in Science and Technology program at the Technion and an Alon Fellow. She received the Michael Bruno Memorial Award from the Rothschild Foundation, the Weizmann Prize for Exact Sciences, the Wolf Foundation Krill Prize for Excellence in Scientific Research, the Henry Taub Prize for Excellence in Research (twice), the Hershel Rich Innovation Award (three times), and the Award for Women with Distinguished Contributions. She received several best paper awards and best demo awards together with her research students and colleagues, was selected as one of the 50 most influential women in Israel, and was a member of the Israel Committee for Higher Education. She is the Editor in Chief of Foundations and Trends in Signal Processing, a member of several IEEE Technical Committees and Award Committees, and heads the Committee for Promoting Gender Fairness in Higher Education Institutions in Israel.

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CS Colloquium (11/11): Elad Hazan (Princeton University)
by Moshe Babaioff 10 Nov '24

10 Nov '24

Dear all, Next week, we have the pleasure of hosting *Prof. Elad Hazan* (Princeton University) at our CS colloquium. The title and abstract of the talk appear below. For bio see here <https://www.ehazan.com/bio/>. The seminar will be held on Monday, November 11th at 14:00. (Refreshments at 13:45) *Location*: Romm C220, Rothberg Building. Looking forward to seeing you, Amir and Moshe =============================== *Speaker: **Prof. Elad Hazan <https://www.ehazan.com/bio/>* (Princeton University) *Title*: Spectral Transformers *Abstract*: We'll discuss a new technique for sequence modeling for prediction tasks with long range dependencies and fast inference/generation. At the heart of the method is a new formulation for state space models (SSMs) based on learning linear dynamical systems with the spectral filtering algorithm. This gives rise to a novel sequence prediction architecture we call a spectral state space model. Spectral state space models have two primary advantages. First, they have provable robustness properties as their performance depends on neither the spectrum of the underlying dynamics nor the dimensionality of the problem. Second, these models are constructed with fixed convolutional filters that do not require learning while still outperforming SSMs in both theory and practice. The resulting models are evaluated on synthetic dynamical systems as well as long-range prediction tasks of various modalities. These evaluations support the theoretical benefits of spectral filtering for tasks requiring very long range memory. The talk will be self-contained, but here is a link to more information about spectral transformers and filtering <https://sites.google.com/view/gbrainprinceton/projects/spectral-transformers>.

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CS Colloquium (4/11): Avi Wigderson (IAS)
by Moshe Babaioff 04 Nov '24

04 Nov '24

Dear all, Next week, we have the pleasure of hosting *Prof. Avi Wigderson* (IAS), the recipient of the 2023 ACM A.M. Turing Award <https://awards.acm.org/award-recipients/wigderson_3844537>, at our CS colloquium. The seminar will be held on Monday, November 4th at 14:00. (Refreshments at 13:45) *Location*: Auditorium, Rothberg Building (Note the unusual location) The title and abstract appear below (and a short bio is attached). Looking forward to seeing you, Amir and Moshe =============================== *Title*: Reading Alan Turing *Abstract*: I will discuss some well-known and less-known papers of Turing, demonstrate the scope of deep, prescient ideas he put forth, and mention follow-up bodies of work on these ideas by the Theoretical CS community. [image: Avi Wigderson.png]

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