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Xun Wu

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#machine learning Preprint Oct 2026

OpenDGO: Benchmarking Multi-Agent Organizations Across Diverse Application Domains

Large language model (LLM)-based multi-agent systems are increasingly applied across diverse domains, yet different applications require different forms of agent organization. Existing studies typically adopt predefined organizations, such as Star, Chain, and Tree, or learn communication graphs to improve performance o...

Xun-Kai Li, Miao Zhang, Ze-Kai Chen et al. · 0 citations
#machine learning Preprint Oct 2026

No-Free-Graph: Learning When Multimodal Data Should Be Graphified

Multimodal graph learning has recently emerged as an effective paradigm for in corporating inter-entity relationships into multimodal representations. Existing studies have made substantial progress on how to construct and optimize graphs, but rarely consider a more fundamental question: whether additional relational s...

Ze-Kai Chen, Kai Hu, Yu-Xin Zeng et al. · 0 citations
#machine learning Preprint Sep 2026

MOVE: Multimodal Open-world Verification and Expansion for Graph Learning

Multimodal graph learning faces a fundamental challenge: new classes may emerge after deployment, while models are trained with a fixed label space. Existing approaches typically detect unknown nodes and use LLMs to generate candidate class descriptions, but they do not determine whether existing classes are insufficie...

Ze-Kai Chen, Jia-Yang Xing, Xun Wu et al. · 0 citations
Jul 2026

FedOGL: Combating Catastrophic Forgetting in Federated Open-World Multimodal Graph Learning

FedOGL preserves historical decision behavior through replay and task-start distillation, while protecting graph-propagation memory via projection onto a globally shared structure basis via projection onto a globally shared structure basis.

Ze-Kai Chen, Haodong Lu, Shi-Hao Li et al. · 0 citations
Preprint Jul 2026

MMFGU: Multimodal Federated Graph Unlearning

A multimodal federated graph unlearning framework built around target-specific representation decoupling that effectively removes requested information, preserves retained graph utility, and achieves a speedup over full retraining.

Haodong Lu, Zekai Chen, Weiwei Ji et al. · 0 citations

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