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Events at Physics

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Events on Wednesday, September 9th, 2020

Physics ∩ ML Seminar
Insights on gradient-based algorithms in high-dimensional learning
Time: 11:00 am
Place: Please register for this online event: http://physicsmeetsml.org
Speaker: Lenka Zdeborova, Université Paris-Saclay
Abstract: Gradient descent algorithms and their noisy variants, such as the Langevin dynamics or multi-pass SGD, are at the center of attention in machine learning. Yet their behaviour remains perplexing, in particular in the high-dimensional non-convex setting. In this talk, I will present several high-dimensional and (mostly) non-convex statistical learning problems in which the performance of gradient-based algorithms can be analysed down to a constant. The common point of these settings is that the data come from a probabilistic generative model leading to problems for which, in the high-dimensional limit, statistical physics provides exact closed solutions for the performance of the gradient-based algorithms. The covered settings include the spiked mixed matrix-tensor model, the perceptron or phase retrieval.
Host: Gary Shiu
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Wisconsin Quantum Institute
CQE Briefing: Universal Coherence Protection in a Solid-State Spin Qubit
Time: 11:00 am
Place: Join Virtually: https://uchicagogroup.zoom.us/j/99566603797?pwd=amFxMHcvZndseDFUUlU4a3ZDZGhhUT09
Speaker: David Awschalom and Kevin Miao UChicago, UChicago, Argonne
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Department Meeting
Time: 12:15 pm
Place: Virtual see "abstract" for connection info
Speaker: Sridhara Dasu, Department Chair, UW-Madison
Meeting Coordinates: Meeting number: 120 392 9242 Password: Q5EjaTz3Pk3 (75352893 from phones) https://uwmadison.webex.com/uwmadison/j.php?MTID=m4be4e8a6254fdcd033b6c946ffeee6c8 Join by video system Dial 1203929242@uwmadison.webex.com You can also dial 173.243.2.68 and enter your meeting number. Join by phone +1-415-655-0001 US Toll +1-312-535-8110 United States Toll (Chicago) Access code: 120 392 9242
Host: Sridhara Dasu, Department Chair
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