Previous Conferences & Workshops

Nov
15
2019

Joint IAS/Princeton University Theoretical Machine Learning Seminar

Can learning theory resist deep learning?
Francis Bach
12:30pm|Princeton University, Computer Science - Room 105

Machine learning algorithms are ubiquitous in most scientific, industrial and personal domains, with many successful applications. As a scientific field, machine learning has always been characterized by the constant exchanges between theory and...

Nov
14
2019

Joint IAS/Princeton University Theoretical Machine Learning Seminar

Local systems over Shimura varieties: a comparison of two constructions
4:30pm|*Princeton University, Fine 214*

Given a Shimura variety, we can construct two kinds of automorphic local systems, i.e., local systems attached to algebraic representations of certain associated algebraic group. The first is based on the classical complex analytic construction...

Nov
13
2019

Mathematical Conversations

Erdős distinct distances problem on the plane
6:00pm|Dilworth Room

Given $N$ distinct points on the plane, what's the minimal number, $g(N)$, of distinct distances between them? Erdős conjectured in 1946 that $g(N)\geq O(N/(log N)^{1/2})$. In 2010, Guth and Katz showed that $g(N)\geq O(N/log N)$ using the...

Nov
13
2019

Theoretical Machine Learning Seminar

Some Statistical Results on Deep Learning: Interpolation, Optimality and Sparsity
12:00pm|Dilworth Room

This talk discusses three aspects of deep learning from a statistical perspective: interpolation, optimality and sparsity. The first one attempts to interpret the double descent phenomenon by precisely characterizing a U-shaped curve within the...

Nov
12
2019

Theoretical Machine Learning Seminar

Fast IRLS Algorithms for p-norm regression
12:00pm|White-Levy

Linear regression in L_p-norm is a canonical optimization problem that arises in several applications, including sparse recovery, semi-supervised learning, and signal processing. Standard linear regression corresponds to p=2, and p=1 or infinity is...

Nov
11
2019

Analysis Seminar

An application of displacement convexity at the level of point processes
Thomas Leblé
5:00pm|Simonyi Hall 101

The path between two measures in the sense of optimal transport yields the notion of *displacement interpolation*. As observed by R. McCann, certain functionals that are not convex in the usual sense are nonetheless *displacement convex*. Following...

Nov
11
2019

Symplectic Dynamics/Geometry Seminar

Local rigidity and C^0 symplectic and contact topology
Mike Usher
3:30pm|Simonyi Hall 101

I will explain how coisotropic submanifolds of symplectic manifolds can be distinguished among all submanifolds by a criterion ("local rigidity") related to the Hofer energy necessary to disjoin open sets from them. This criterion is invariant under...