3 papers
math.OC2026
From a Scalar to a Matrix Setting for the Dai--Liao Parameter
Saman Babaie--Kafaki, Morteza Kimiaei, Zohre Aminifard
As is well known, both the numerical performance and the theoretical properties of the Dai--Liao conjugate gradient algorithm are highly dependent on the adjustment of its key para…
math.OC2026
An Approximate Conjugate Subgradient Algorithm with Matrix Parameter for Derivative-Free Nonsmooth Optimization Problems
Morteza Kimiaei, Saman Babaie-Kafaki, Zohre Aminifard
We propose a derivative-free matrix conjugate-subgradient method for unconstrained nonsmooth optimization of locally Lipschitz functions. The method constructs discrete gradients u…
math.OC2025
A Non-Monotone Line-Search Method for Minimizing Functions with Spurious Local Minima
Zohreh Aminifard, Geovani Nunes Grapiglia
In this paper, we propose a new non-monotone line-search method for smooth unconstrained optimization problems with objective functions that have many non-global local minimizers.…