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math.OC2020★ 1 cited
New subspace minimization conjugate gradient methods based on regularization model for unconstrained optimization
Ting Zhao, Hongwei Liu, Zexian Liu
In this paper, two new subspace minimization conjugate gradient methods based on regularization models are proposed, where a special scaled norm in regularization model…
math.OC2019
An Improved Gradient Method with Approximately Optimal Stepsize Based on Conic model for Unconstrained Optimization
Zexian Liu, Hongwei Liu
A new type of stepsize, which was recently introduced by Liu and Liu (Optimization, 67(3), 427-440, 2018), is called approximately optimal stepsize and is quit efficient for gradie…