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Thomas Pumir

3 accepted papers

2025

PETRA: Parallel End-to-end Training with Reversible Architectures

ICLR 2025spotlight

Reversible architectures have been shown to be capable of performing on par with their non-reversible architectures, being applied in deep learning for memory savings and generative modeling. In this work, we show how reversible architectures can solve challenges in parallelizing deep model training…

Cited by 0SourcePDFScholar
2021

Generalization of Quasi-Newton Methods: Application to Robust Symmetric Multisecant Updates

AISTATS 2021poster

Quasi-Newton (qN) techniques approximate the Newton step by estimating the Hessian using the so-called secant equations. Some of these methods compute the Hessian using several secant equations but produce non-symmetric updates. Other quasi-Newton schemes, such as BFGS, enforce symmetry but cannot s…

Cited by 7SourcePDFScholar
2018

Smoothed analysis of the low-rank approach for smooth semidefinite programs

NeurIPS 2018oral

We consider semidefinite programs (SDPs) of size $n$ with equality constraints. In order to overcome scalability issues, Burer and Monteiro proposed a factorized approach based on optimizing over a matrix $Y$ of size $n\times k$ such that $X=YY^*$ is the SDP variable. The advantages of such formulat…

Cited by 32SourcePDFScholar