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20242026
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cs.CL2026

LongMemEval-V2: Evaluating Long-Term Agent Memory Toward Experienced Colleagues

Di Wu, Zixiang Ji, Asmi Kawatkar +4

Long-term memory is crucial for agents in specialized web environments, where success depends on recalling interface affordances, state dynamics, workflows, and recurring failure m…

cs.CL2026

BRIEF-Pro: Universal Context Compression with Short-to-Long Synthesis for Fast and Accurate Multi-Hop Reasoning

Jia-Chen Gu, Junyi Zhang, Di Wu +3

As retrieval-augmented generation (RAG) tackles complex tasks, increasingly expanded contexts offer richer information, but at the cost of higher latency and increased cognitive lo…

cs.CL2026

Open-Domain Safety Policy Construction

Di Wu, Siyue Liu, Zixiang Ji +4

Moderation layers are increasingly a core component of many products built on user- or model-generated content. However, drafting and maintaining domain-specific safety policies re…

cs.CL2026

Self-Routing RAG: Binding Selective Retrieval with Knowledge Verbalization

Di Wu, Jia-Chen Gu, Kai-Wei Chang +1

Selective retrieval aims to make retrieval-augmented generation (RAG) more efficient and reliable by skipping retrieval when an LLM's parametric knowledge suffices. Despite promisi…

cs.CL2025

LongMemEval: Benchmarking Chat Assistants on Long-Term Interactive Memory

Di Wu, Hongwei Wang, Wenhao Yu +3

Recent large language model (LLM)-driven chat assistant systems have integrated memory components to track user-assistant chat histories, enabling more accurate and personalized re…

cs.CL2025

BRIEF: Bridging Retrieval and Inference for Multi-hop Reasoning via Compression

Yuankai Li, Jia-Chen Gu, Di Wu +2

Retrieval-augmented generation (RAG) can supplement large language models (LLMs) by integrating external knowledge. However, as the number of retrieved documents increases, the inp…