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Kai Sun

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#natural language process... Preprint Oct 2026

IdeaScientist: Orchestrating Agents for Grounded Scientific Ideation

Despite rapid progress in automating scientific research, generating promising and well grounded research solutions remains a central challenge. We isolate research ideation as a standalone task and build our solution on the intuition that a challenge in one field can often be addressed by a mechanism that solved an an...

Jia-Rui Liu, Ren-Jie Tao, Yi-Wei Liao et al. · 0 citations
#artificial intelligence Preprint Sep 2026

MemLife: Curating and Reasoning over Long-Term Egocentric Video Memories

Long-term egocentric video enables personalized AI assistants to reason about daily life. However, as video histories grow to hundreds of hours spanning months or years, reprocessing raw clips for every query becomes computationally prohibitive. Memory systems offer a scalable alternative by compacting videos into text...

Guang-Zhi Xiong, Xin-Yuan Zhang, Xiao Yang et al. · 0 citations
Book Open access Aug 2026

Retrieval-Augmented Generation (RAG)— From Modular to Agentic Systems

This tutorial provides an in-depth treatment of modern RAG based on AI-facilitated systematic analysis of ~2000 recent papers (2020--2026) and traces the RAG pipeline from its modular foundations through graph-enhanced reasoning to the latest RL-driven agentic architectures, covering each stage.

Xin Dong, Sanat Sharma, Kai Sun et al. · 0 citations
Book Open access Aug 2026

Retrieval-Augmented Generation (RAG)— From Modular to Agentic Systems

Retrieval-Augmented Generation (RAG) has emerged as the dominant strategy to ground LLM outputs in retrieved evidence to reduce hallucinations and increase factuality, yet RAG itself introduces new challenges: noisy retrieval, knowledge conflicts, and wasted computation from unnecessary retrieval. This tutorial provide...

X. Dong, Sanat Sharma, Kai Sun et al. · 0 citations

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