Heterogeneous Hypergraph Neural Network for Friend Recommendation with Human Mobility. - Yongkang Li 002; Zipei Fan; Jixiao Zhang; Dengheng Shi; Tianqi Xu; Du Yin; Jinliang Deng; Xuan Song 001 (CIKM, 2022)

Hyper-Relational Knowledge Graph Neural Network for Next POI. - Jixiao Zhang; Yongkang Li 002; Ruotong Zou; Jingyuan Zhang; Zipei Fan; Xuan Song 001 (CoRR, 2023)

Hyper-relational knowledge graph neural network for next POI recommendation. - Jixiao Zhang; Yongkang Li 002; Ruotong Zou; Jingyuan Zhang; Renhe Jiang; Zipei Fan; Xuan Song 001 (World Wide Web (WWW), 2024)

GRPO-LEAD: A Difficulty-Aware Reinforcement Learning Approach for Concise Mathematical Reasoning in Language Models. - Jixiao Zhang; Chunsheng Zuo (CoRR, 2025)