collaborators

6 papers

cs.LG2026

SinkRec: Mitigating Semantic State Sink in Long Sequence Recommendation with Memory-Conditioned Gated Delta Networks

Zhuang Zhuang, Zhipeng Wei, Ji Dai +4

Linear attention provides an efficient backbone for long-sequence recommendation by avoiding the quadratic cost of standard Transformers, but its compressed recurrent state can be…

cs.LG2026

Reducing the Safety Tax in LLM Safety Alignment with On-Policy Self-Distillation

Yu Fu, Longxuan Yu, Haz Sameen Shahgir +4

Safety alignment often improves robustness to harmful queries at the cost of reasoning ability, a tradeoff known as the safety tax. A common cause is distributional mismatch: super…

cs.CL2026

Do Reasoning LLMs Refuse What They Infer in Long Contexts?

Yu Fu, Haz Sameen Shahgir, Huanli Gong +3

Long-context LLMs can infer objectives that are not stated explicitly. This capability is useful for reasoning over documents, code, retrieved evidence, and tool traces, but it als…

cs.CV2026

Think, Then Verify: A Hypothesis-Verification Multi-Agent Framework for Long Video Understanding

Zheng Wang, Haoran Chen, Haoxuan Qin +3

Long video understanding is challenging due to dense visual redundancy, long-range temporal dependencies, and the tendency of chain-of-thought and retrieval-based agents to accumul…

cs.IR2025

OneLoc: Geo-Aware Generative Recommender Systems for Local Life Service

Zhipeng Wei, Kuo Cai, Junda She +8

Local life service is a vital scenario in Kuaishou App, where video recommendation is intrinsically linked with store's location information. Thus, recommendation in our scenario i…

cs.CL2025

Emoji Attack: Enhancing Jailbreak Attacks Against Judge LLM Detection

Zhipeng Wei, Yuqi Liu, N. Benjamin Erichson

Jailbreaking techniques trick Large Language Models (LLMs) into producing restricted output, posing a potential threat. One line of defense is to use another LLM as a Judge to eval…