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

The capacitated vehicle routing problem (CVRP) is a representative NP-hard combinatorial optimization problem with broad applications in logistics and transportation. This paper proposes a hybrid metaheuristic, termed SPSOM-CVRP, which integrates an improved set-based particle swarm optimization (SPSO) with a self-orga...

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

Graph neural networks have achieved strong performance in node classification by aggregating information from graph neighborhoods. However, a single aggregation mechanism may be insufficient to capture diverse structural patterns across graph datasets. Moreover, independently training multiple structural branches can i...

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