Author

Qiang Zhang

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Preprint Aug 2026

Contrastive Representation-Guided Genetic Minority Oversampling for Imbalanced Time-Series Classification

Real-world time-series classification tasks often exhibit class imbalance, which can be extremely severe in some applications. To avoid training biased classifiers on imbalanced data, sampling is one of the most popular data pre-processing techniques because of its classifier-agnostic nature. However, due to the comple...

Wenbin Pei, Yunrong Hao, Zhen Liu et al. · 0 citations

Preprint Aug 2026

HPSO: Particle Swarm Optimization with Hypergraph-Based Topology

Particle swarm optimization (PSO) has been widely applied to solve complex optimization problems from real-world applications due to its efficient exploration of large solution spaces and the ability to converge towards optimal solutions without requiring gradient information. Common swarm topologies in standard PSO an...

Wenbin Pei, Xi Luo, Bing Xue et al. · 0 citations