Work

Online estimation of the inverse of the Hessian for stochastic optimization with application to universal stochastic Newton algorithms

Year: 2024
Type: preprint
Abstract: This paper addresses second-order stochastic optimization for estimating the minimizer of a convex function written as an expectation. A direct recursive estimation technique for the inverse Hessian matrix using a Robbins-Monro procedure is introduced. This approach enables to drastically reduces computational complexity. Above all, it allows to develop universal stochastic Newton methods and investigate the asymptotic efficiency of the proposed approach. This work so expands the application scope of secondorder algorithms in stochastic optimization.
Language: English
Open Access status: green
OpenAlex ID: W4390895039
Cites: 31
Cited by: 6
Related to: 10