A Novel Hybrid Conjugate Gradient Algorithm for Solving Unconstrained Optimization Problems

We introduce a novel hybrid conjugate gradient method for unconstrained optimization, combining the AlBayati-AlAssady and Wei-Yao-Liu approaches, where the convex parameter is determined using the conjugacy condition. Through rigorous theoretical analysis, we establish that the proposed method guarantees sufficient descent properties and achieves global convergence under the strong Wolfe conditions. Using the performance profile of Dolan and Moré, we confirm that our method, denoted as RN, consistently outperforms both classical (HS, FR, PRP and DY CG) and hybrid (BAFR and BADY) methods, particularly for large-scale problems.

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Publication Details

Journal
Statistics Optimization & Information Computing
Published
2025-10-15
DOI
https://doi.org/10.19139/soic-2310-5070-2807
Primary Topic
Advanced Optimization Algorithms Research
Type
article
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article

A Novel Hybrid Conjugate Gradient Algorithm for Solving Unconstrained Optimization Problems

Statistics Optimization & Information Computing
Advanced Optimization Algorithms Research
article

A Novel Hybrid Conjugate Gradient Algorithm for Solving Unconstrained Optimization Problems

article en

Abstract

We introduce a novel hybrid conjugate gradient method for unconstrained optimization, combining the AlBayati-AlAssady and Wei-Yao-Liu approaches, where the convex parameter is determined using the conjugacy condition. Through rigorous theoretical analysis, we establish that the proposed method guarantees sufficient descent properties and achieves global convergence under the strong Wolfe conditions. Using the performance profile of Dolan and Moré, we confirm that our method, denoted as RN, consistently outperforms both classical (HS, FR, PRP and DY CG) and hybrid (BAFR and BADY) methods, particularly for large-scale problems.

Statistics Optimization & Information ComputingVol. 15(1)
University of Guelma (DZ)
Openalex Percentile: Top 30%
Advanced Optimization Algorithms Research
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