Search Results for author: Sarath Pattathil

Found 10 papers, 0 papers with code

Revisiting the Linear-Programming Framework for Offline RL with General Function Approximation

no code implementations28 Dec 2022 Asuman Ozdaglar, Sarath Pattathil, Jiawei Zhang, Kaiqing Zhang

Offline reinforcement learning (RL) aims to find an optimal policy for sequential decision-making using a pre-collected dataset, without further interaction with the environment.

Decision Making Offline RL +1

Tight last-iterate convergence rates for no-regret learning in multi-player games

no code implementations NeurIPS 2020 Noah Golowich, Sarath Pattathil, Constantinos Daskalakis

We also show that the $O(1/\sqrt{T})$ rate is tight for all $p$-SCLI algorithms, which includes OG as a special case.

An Optimal Multistage Stochastic Gradient Method for Minimax Problems

no code implementations13 Feb 2020 Alireza Fallah, Asuman Ozdaglar, Sarath Pattathil

Next, we propose a multistage variant of stochastic GDA (M-GDA) that runs in multiple stages with a particular learning rate decay schedule and converges to the exact solution of the minimax problem.

A Decentralized Proximal Point-type Method for Saddle Point Problems

no code implementations31 Oct 2019 Weijie Liu, Aryan Mokhtari, Asuman Ozdaglar, Sarath Pattathil, Zebang Shen, Nenggan Zheng

In this paper, we focus on solving a class of constrained non-convex non-concave saddle point problems in a decentralized manner by a group of nodes in a network.

Vocal Bursts Type Prediction

A Unified Analysis of Extra-gradient and Optimistic Gradient Methods for Saddle Point Problems: Proximal Point Approach

no code implementations24 Jan 2019 Aryan Mokhtari, Asuman Ozdaglar, Sarath Pattathil

In this paper we consider solving saddle point problems using two variants of Gradient Descent-Ascent algorithms, Extra-gradient (EG) and Optimistic Gradient Descent Ascent (OGDA) methods.

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