Author

Xinyang Yu

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Preprint Aug 2026

Dynamic Networks with Node Heterogeneity and Homophily

A novel normalized squared loss is proposed, paving the way for efficient and stable estimation of parameters in a high-dimensional setting and providing more sophisticated tools for the prediction of future networks with statistical guarantees.

Binyan Jiang, Qiwei Yao, Xinyang Yu · 0 citations

Jul 2026

Tools Are Not Islands: Set-Level Tool Retrieval for LLM Agents via Query-Conditioned Hyperedge Prediction

This paper proposes HYSET, short for HYperedge-based SEt-level Tool retrieval, which forms tool retrieval as query-conditioned hyperedge prediction on a tool co-invocation hypergraph, under which the tool set itself becomes the unit of scoring and most existing retrieval paradigms reduce to restricted instances.

Xin Hong, P. Dong, Xinyang Yu et al. · arXiv.org · 0 citations