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Duxin Chen

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#artificial intelligence Preprint Oct 2026

From Complex Histories to Simple Predictors: Predictive Dimension in Dynamic Graph Learning

It is argued that continuous-time graph learning should identify low-dimensional states sufficient for future prediction rather than reconstruct the full history, and proposed PreDyG, a lightweight model whose capacity is matched to the intrinsic predictive dimension.

Han-Tong Feng, Du-Xin Chen, Wen-Wu Yu · 0 citations

STHMoE: Hypergraph-Enhanced Heterogeneous Dependency Coordination for LLM-Based Urban Traffic Data Forecasting

STHMoE decouples traffic dynamics into frequency-domain, time-domain, spatio-domain, spatio-domain, and higher-order spatial representations, which are modeled by prompt-guided heterogeneous experts built upon a partially frozen LLM backbone.

Jia-Wen Chen, Qi Shao, Yong-Jian Chang et al. · 0 citations
Review Open access Jul 2026

System identification for complex dynamical systems: a survey

This review surveys system identification for complex dynamical systems through a unified framework that connects model structure, operating mode, estimation target, and computational setting and identifies key open challenges, including robust identification under biased or limited data, uncertainty-aware modeling, in...

Xiaoyu Zhang, Zi-Qiang Li, Ruizhe Shi et al. · 0 citations
Open access Jun 2026

Unifying network connectivity from geodesics to random walks via the random cluster model

A unified statistical physics framework based on the random cluster model is introduced that encompasses classical notions of connectivity and defines a continuous family of new connectivity measures, offering a powerful tool to analyze structure and dynamics in complex networks.

Xiangyi Meng, Chenxuguang Zhu, Nicola Pedreschi et al. · 0 citations

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