collaborators

10 papers

cs.IR2026

MemSifter: Offloading LLM Memory Retrieval via Outcome-Driven Proxy Reasoning

Jiejun Tan, Zhicheng Dou, Liancheng Zhang +3

As Large Language Models (LLMs) are increasingly used for long-duration tasks, maintaining effective long-term memory has become a critical challenge. Current methods often face a…

cs.CR2026

From Prompt Injection to Persistent Control: Defending Agentic Harness Against Trojan Backdoors

Jiejun Tan, Zhicheng Dou, Xinyu Yang +4

LLM agents are evolving from conversational chatbots to operational tools in real-world workspaces. In local agentic harnesses, an LLM can read and write files, call tools, and reu…

cs.AI2026

SAM: State-Adaptive Memory for Long-Horizon Reasoning Agent

Yuyang Hu, Hongjin Qian, Shuting Wang +5

Long-horizon agentic reasoning requires large language models to act over long interaction histories containing thoughts, tool calls, observations, and partial conclusions. The cha…

cs.IR2026

ChatShopBuddy: Towards Reliable Conversational Shopping Agents via Reinforcement Learning

Yiruo Cheng, Kelong Mao, Tianhao Li +3

Conversational shopping agents represent a critical consumer-facing application of Large Language Model (LLM)-powered agents, yet how to effectively apply post-training Reinforceme…

cs.CL2026

Med-R: Enhancing Medical Retrieval-Augmented Reasoning of LLMs via Progressive Reinforcement Learning

Keer Lu, Zheng Liang, Youquan Li +8

In medical scenarios, effectively retrieving external knowledge and leveraging it for rigorous logical reasoning is of significant importance. Despite their potential, existing wor…

cs.CL2026

Memory in the Age of AI Agents

Yuyang Hu, Shichun Liu, Yanwei Yue +44

Memory has emerged, and will continue to remain, a core capability of foundation model-based agents. As research on agent memory rapidly expands and attracts unprecedented attentio…