A Trust-Region Interior-Point Stochastic Sequential Quadratic Programming Method

Fuente: arXiv
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Auteurs principaux: Fang, Yuchen, Kim, Jihun, Na, Sen, Demmel, James, Lavaei, Javad
Format: Preprint
Publié: 2026
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author Fang, Yuchen
Kim, Jihun
Na, Sen
Demmel, James
Lavaei, Javad
author_facet Fang, Yuchen
Kim, Jihun
Na, Sen
Demmel, James
Lavaei, Javad
contents In this paper, we propose a trust-region interior-point stochastic sequential quadratic programming (TR-IP-SSQP) method for solving optimization problems with a stochastic objective and deterministic nonlinear equality and inequality constraints. In this setting, exact evaluations of the objective function and its gradient are unavailable, but their stochastic estimates can be constructed. In particular, at each iteration our method builds stochastic oracles, which estimate the objective value and gradient to satisfy proper adaptive accuracy conditions with a fixed probability. To handle inequality constraints, we adopt an interior-point method (IPM), in which the barrier parameter follows a prescribed decaying sequence. Under standard assumptions, we establish global almost-sure convergence of the proposed method to first-order stationary points. We implement the method on a subset of problems from the CUTEst test set, as well as on logistic regression problems, to demonstrate its practical performance.
format Preprint
id arxiv_https___arxiv_org_abs_2603_10230
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle A Trust-Region Interior-Point Stochastic Sequential Quadratic Programming Method
Fang, Yuchen
Kim, Jihun
Na, Sen
Demmel, James
Lavaei, Javad
Optimization and Control
Machine Learning
Numerical Analysis
In this paper, we propose a trust-region interior-point stochastic sequential quadratic programming (TR-IP-SSQP) method for solving optimization problems with a stochastic objective and deterministic nonlinear equality and inequality constraints. In this setting, exact evaluations of the objective function and its gradient are unavailable, but their stochastic estimates can be constructed. In particular, at each iteration our method builds stochastic oracles, which estimate the objective value and gradient to satisfy proper adaptive accuracy conditions with a fixed probability. To handle inequality constraints, we adopt an interior-point method (IPM), in which the barrier parameter follows a prescribed decaying sequence. Under standard assumptions, we establish global almost-sure convergence of the proposed method to first-order stationary points. We implement the method on a subset of problems from the CUTEst test set, as well as on logistic regression problems, to demonstrate its practical performance.
title A Trust-Region Interior-Point Stochastic Sequential Quadratic Programming Method
topic Optimization and Control
Machine Learning
Numerical Analysis
url https://arxiv.org/abs/2603.10230