[Seminars] FW: [theory-seminar] SPECIAL KADANOFF CENTER FOR THEORETICAL PHYSICS SEMINAR TOMORROW

[Ramona Echols]

[Inline image         2]



SPECIAL KADANOFF CENTER FOR THEORETICAL PHYSICS SEMINAR TOMORROW
DATE: Wednesday March 16th, 2022

TIME: 4:00 P.M.

LOCATION: MCP 201

SPEAKER: Zohar Ringel, Hebrew University of Jerusalem
Title:  "Feature learning in deep convolutional networks - a physicist's perspective."
Abstract:  Deep neural networks (DNNs) are powerful tools for compressing and distilling information. One of their remarkable properties is their ability to learn internal features or representations which are useful beyond the specific task at hand. However, a quantitative understanding of what are exactly these features and what rules they obey is largely absent. In fact, much of the recent theoretical progress in deep learning starts from viewing DNN layers as being data-agnostic random-function-generators. In this talk, I'll explain the above notions and the tensions between them. Moreover, I'll give an overview of a recent theory we derived which reconciles the random-function viewpoint with feature learning. Specifically, we argue that realistic DNN layers do act as decoupled random-function-generators. However, their second moment (kernel), governing the randomness, does adapt to the training data in a predictable manner.  We further derive concrete equations governing these kernels and test them on trained convolutional neural networks (CNNs).
Upcoming In Person and Zoom Talks:
Kadanoff Seminar: Felix Werner, École Normale Supérieur, Paris, Seminar Date, March 21st, Title: "Large-order summation of connected Feynman diagrams for strongly correlated fermions."
Kadanoff Seminar: Andrea Dei, Harvard, Seminar Date, March 27th, Title: "String correlators on AdS3."
Particle Theory Seminar: Robert McGehee, University of Michigan, Seminar Date, March 30th, Title: "Maximizing Direct Detection with HYPER Dark Matter."
Kadanoff Seminar: (VIA ZOOM) Tim Hsieh, Perimeter, Seminar Date, April 4th, Title: "TBA"
Particle Theory Seminar: Zhengkang Zhang, UC Santa Barbara, Seminar Date, April 6th, Title: "Magic Zeroes and Hidden Symmetries."
Particle Theory Seminar: Edgar Shaghoulian, University of Pennsylvania, Seminar Date, April 13th, Title: "TBA"
Particle Theory Seminar: Shirley Li, Fermilab, Seminar Date, April 20th, Title: "Neutrino-Nucleus Scattering in Neutrino Oscillation Experiments."
Kadanoff Seminar: Sridip Pal, IAS, Seminar Date, April 25th, Title: "TBA"
Kadanoff Seminar: Meng Chang, Yale University, Seminar Date, May 2nd, Title: "TBA"
Particle Theory Seminar: Vedran Brdar, Fermilab, Seminar Date, May 4th, Title: "Seeking New Physics at Neutrino Oscillation Experiments."
Kadanoff Seminar: Chang Ha Choi, Stony Brook, Seminar Date, May 9th, Title: "TBA"
Particle Theory Seminar: Juan Carlos Vasquez Carmona, UMass Amherst, Seminar Date, May 18th, Title: "The QCD Adler function and the muon g-2 anomaly from Renormalons."
Particle Theory Seminar: Xiaochaun Lu, University of Oregon, Seminar Date, May 25th, Title: "On-Shell Covariance of Quantum Field Theory Amplitudes."
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