Author

Xue-Wen Xia

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Open access Sep 2026

A Hybrid Metaheuristics Based on an Improved Set-Based Particle Swarm Optimization and a Self-Organizing Map for the Capacitated Vehicle Routing Problem

A hybrid metaheuristic is proposed, termed SPSOM-CVRP, which integrates an improved set-based particle swarm optimization (SPSO) with a self-organizing map (SOM), which is responsible for constructing feasible CVRP solutions and performs route-level refinement to improve solution quality.

Lei Tong, Si-Yang Chen, Xue-Wen Xia · Algorithms · 0 citations

#machine learning Preprint Sep 2026

PreGS: A Parameter-Transfer-Based Multi-Expert Graph Neural Network for Node Classification

This paper proposes PreGS, a parameter-transfer-based multi-expert graph neural network framework, and develops PreGSv2, which introduces source-level weighting and a structural gating mechanism for adaptive multi-source feature integration.

Zhi Cai, Yinglong Zhang, Xiao-Ying Hong et al. · 0 citations