2 papers
cs.IR2026
SentAttack: A Sentence-Level Black-Box Adversarial Attack Method for Dense Retrieval Models
Luping Wei, Yamin Hu, Sihan Shang +2
Retrieval-Augmented Generation (RAG) systems typically consist of a dense retrieval (DR) model for initial retrieval and a neural ranking model (NRM) for re-ranking.Existing robust…
cs.LG2026
Rethinking Backdoor Adversarial Unlearning through the Lens of Catastrophic Forgetting in Continual Learning
Zhenqian Zhu, Yamin Hu, Yujiang Liu +5
Existing studies reveal that current backdoor defenses exhibit limited robustness and often fail against specific types of attacks. More concerningly, prevailing safety tuning stra…