Past Probability Seminars Spring 2020: Difference between revisions
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== Thursday, February 5, No seminar this week == | == Thursday, February 5, No seminar this week == | ||
== | == Wednesday, <span style="color:red">February 11</span>, [http://www.math.wisc.edu/~stechmann/ Sam Stechmann], [http://www.math.wisc.edu/ UW-Madison] == | ||
<span style="color:red">Please note the unusual time and room. | <span style="color:red">Please note the unusual time and room. | ||
Revision as of 21:57, 2 February 2015
Spring 2015
Thursdays in 901 Van Vleck Hall at 2:25 PM, unless otherwise noted.
If you would like to sign up for the email list to receive seminar announcements then please send an email to join-probsem@lists.wisc.edu.
Thursday, January 15, Miklos Racz, UC-Berkeley Stats
Title: Testing for high-dimensional geometry in random graphs
Abstract: I will talk about a random geometric graph model, where connections between vertices depend on distances between latent d-dimensional labels; we are particularly interested in the high-dimensional case when d is large. Upon observing a graph, we want to tell if it was generated from this geometric model, or from an Erdos-Renyi random graph. We show that there exists a computationally efficient procedure to do this which is almost optimal (in an information-theoretic sense). The key insight is based on a new statistic which we call "signed triangles". To prove optimality we use a bound on the total variation distance between Wishart matrices and the Gaussian Orthogonal Ensemble. This is joint work with Sebastien Bubeck, Jian Ding, and Ronen Eldan.
Thursday, January 22, No Seminar
Thursday, January 29, Arnab Sen, University of Minnesota
Title: Double Roots of Random Littlewood Polynomials
Abstract: We consider random polynomials whose coefficients are independent and uniform on {-1,1}. We will show that the probability that such a polynomial of degree n has a double root is o(n^{-2}) when n+1 is not divisible by 4 and is of the order n^{-2} otherwise. We will also discuss extensions to random polynomials with more general coefficient distributions.
This is joint work with Ron Peled and Ofer Zeitouni.
Thursday, February 5, No seminar this week
Wednesday, February 11, Sam Stechmann, UW-Madison
Please note the unusual time and room.
Title: TBA
Abstract:
Thursday, February 19, Xiaoqin Guo, Purdue
Title: TBA
Abstract:
Thursday, February 26, Dan Crisan, Imperial College London
Title: TBA
Abstract:
Thursday, March 5, Kurt Helms, Humboldt-Universität zu Berlin
Title: TBA
Abstract:
Thursday, March 12, TBA
Title: TBA
Abstract:
Thursday, March 19, Mark Huber, Claremont McKenna Math
Title: TBA
Abstract:
Thursday, March 26, Ji Oon Lee, KAIST
Title: TBA
Abstract:
Thursday, April 2, No Seminar, Spring Break
Thursday, April 9, Elnur Emrah, UW-Madison
Title: TBA
Abstract:
Thursday, April 16, TBA
Title: TBA
Abstract:
Thursday, April 23, Hoi Nguyen, Ohio State University
Title: TBA
Abstract:
Thursday, April 30, TBA
Title: TBA
Abstract:
Thursday, May 7, TBA
Title: TBA
Abstract: