Previous Conferences & Workshops

May
19
2020

Theoretical Machine Learning Seminar

Neural SDEs: Deep Generative Models in the Diffusion Limit
Maxim Raginsky
12:00pm|Remote Access Only - see link below

In deep generative models, the latent variable is generated by a time-inhomogeneous Markov chain, where at each time step we pass the current state through a parametric nonlinear map, such as a feedforward neural net, and add a small independent...

May
18
2020

Analysis Seminar

Square function estimate for the cone in R^3
11:00am|Remote Access via Zoom videoconferencing (link below)

We prove a sharp square function estimate for the cone in R^3 and consequently the local smoothing conjecture for the wave equation in 2+1 dimensions. The proof uses induction on scales and an incidence estimate for points and tubes. This is joint...

May
18
2020

Computer Science/Discrete Mathematics Seminar I

The Non-Stochastic Control Problem
Elad Hazan
11:00am|https://theias.zoom.us/j/360043913

Linear dynamical systems are a continuous subclass of reinforcement learning models that are widely used in robotics, finance, engineering, and meteorology. Classical control, since the work of Kalman, has focused on dynamics with Gaussian i.i.d...

May
15
2020

Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

Reflections on Cylindrical Contact Homology
9:00am|https://princeton.zoom.us/j/745635914

This talk beings with a light introduction, including some historical anecdotes to motivate the development of this Floer theoretic machinery for contact manifolds some 25 years ago. I will discuss joint work with Hutchings which constructs...

May
14
2020

Theoretical Machine Learning Seminar

MathZero, The Classification Problem, and Set-Theoretic Type Theory
David McAllester
3:00pm|Remote Access Only - see link below

AlphaZero learns to play go, chess and shogi at a superhuman level through self play given only the rules of the game. This raises the question of whether a similar thing could be done for mathematics --- a MathZero. MathZero would require a formal...

May
14
2020

Joint IAS/Princeton University Number Theory Seminar

A geometric view on Iwasawa theory
Mladen Dimitrov
2:30pm|https://theias.zoom.us/j/959183254

We will investigate the geometry of the p-adic eigencurve at classical points where the Galois representation is locally trivial at p, and will give applications to Iwasawa and Hida theories.

May
13
2020

Mathematical Conversations

The Simplicity Conjecture
Daniel Cristofaro-Gardiner
5:30pm|Remote Access Only

In the 60s and 70s, there was a flurry of activity concerning the question of whether or not various subgroups of homeomorphism groups of manifolds are simple, with beautiful contributions by Fathi, Kirby, Mather, Thurston, and many others. A...

May
12
2020

Theoretical Machine Learning Seminar

Generative Modeling by Estimating Gradients of the Data Distribution
Stefano Ermon
12:00pm|Remote Access Only - see link below

Existing generative models are typically based on explicit representations of probability distributions (e.g., autoregressive or VAEs) or implicit sampling procedures (e.g., GANs). We propose an alternative approach based on modeling directly the...

May
12
2020

Analysis Seminar

Quantitative decompositions of Lipschitz mappings
Guy C. David
11:00am|https://theias.zoom.us/j/562592856

Given a Lipschitz map, it is often useful to chop the domain into pieces on which the map has simple behavior. For example, depending on the dimensions of source and target, one may ask for pieces on which the map behaves like a bi-Lipschitz...

May
12
2020

Computer Science/Discrete Mathematics Seminar II

Convex Set Disjointness, Distributed Learning of Halfspaces, and Linear Programming
10:30am|https://theias.zoom.us/j/360043913

Distributed learning protocols are designed to train on distributed data without gathering it all on a single centralized machine, thus contributing to the efficiency of the system and enhancing its privacy. We study a central problem in distributed...