An optimized neural network approach and its application to classification problems. - Jie Han; Hongru Song 001; Buyun Chen (CIPAE, 2023)

The Silent Saboteur: Imperceptible Adversarial Attacks against Black-Box Retrieval-Augmented Generation Systems. - Hongru Song 001; Yu-An Liu 028; Ruqing Zhang 001; Jiafeng Guo; Jianming Lv; Maarten de Rijke; Xueqi Cheng (ACL (Findings), 2025)

Chain-of-Thought Poisoning Attacks against R1-based Retrieval-Augmented Generation Systems. - Hongru Song 001; Yu-An Liu 028; Ruqing Zhang 001; Jiafeng Guo; Yixing Fan (CoRR, 2025)

LLMs as Sparse Retrievers:A Framework for First-Stage Product Search. - Hongru Song 001; Yu-An Liu 028; Ruqing Zhang 001; Jiafeng Guo; Maarten de Rijke; Sen Li 001; Wenjun Peng 001; Fuyu Lv; Xueqi Cheng (CoRR, 2025)

Stop Hardening Everything: A Training-Free Neuron-Level Defense for Neural Ranking Models. - Yu-An Liu 028; Ruqing Zhang 001; Hongru Song 001; Jiafeng Guo; Yixing Fan; Xueqi Cheng (ACL (1), 2026)

AdversarialCoT: Single-Document Retrieval Poisoning for LLM Reasoning. - Hongru Song 001; Yu-An Liu 028; Ruqing Zhang 001; Jiafeng Guo; Maarten de Rijke; Yixing Fan; Xueqi Cheng (CoRR, 2026)