Search Results for author: Babak Barazandeh

Found 8 papers, 1 papers with code

Nonconvex-Nonconcave Min-Max Optimization with a Small Maximization Domain

no code implementations8 Oct 2021 Dmitrii M. Ostrovskii, Babak Barazandeh, Meisam Razaviyayn

For $0 \le k \le 2$ the surrogate function can be efficiently maximized in $y$; our general approximation result then leads to efficient algorithms for finding a near-stationary point in nonconvex-nonconcave min-max problems, for which we also provide convergence guarantees.

A Decentralized Adaptive Momentum Method for Solving a Class of Min-Max Optimization Problems

no code implementations10 Jun 2021 Babak Barazandeh, Tianjian Huang, George Michailidis

Min-max saddle point games have recently been intensely studied, due to their wide range of applications, including training Generative Adversarial Networks (GANs).

Efficient Algorithms for Estimating the Parameters of Mixed Linear Regression Models

no code implementations12 May 2021 Babak Barazandeh, Ali Ghafelebashi, Meisam Razaviyayn, Ram Sriharsha

When the additive noise in MLR model is Gaussian, Expectation-Maximization (EM) algorithm is a widely-used algorithm for maximum likelihood estimation of MLR parameters.

regression

Solving a class of non-convex min-max games using adaptive momentum methods

no code implementations26 Apr 2021 Babak Barazandeh, Davoud Ataee Tarzanagh, George Michailidis

Adaptive momentum methods have recently attracted a lot of attention for training of deep neural networks.

Solving Non-Convex Non-Differentiable Min-Max Games using Proximal Gradient Method

no code implementations18 Mar 2020 Babak Barazandeh, Meisam Razaviyayn

Min-max saddle point games appear in a wide range of applications in machine leaning and signal processing.

Adversarial Attack

Training generative networks using random discriminators

2 code implementations22 Apr 2019 Babak Barazandeh, Meisam Razaviyayn, Maziar Sanjabi

This design helps us to avoid the min-max formulation and leads to an optimization problem that is stable and could be solved efficiently.

On the Behavior of the Expectation-Maximization Algorithm for Mixture Models

no code implementations24 Sep 2018 Babak Barazandeh, Meisam Razaviyayn

Our numerical experiments show that our algorithm outperforms the Naive EM algorithm in almost all scenarios.

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