IntrAgent: An LLM Agent for Content-Grounded Information Retrieval through Literature Review

Fuente: arXiv
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Main Authors: Ma, Fengbo, Rao, Zixin, Li, Xiaoting, Chen, Zhetao, Sun, Hongyue, Zhao, Yiping, Chen, Xianyan, Xiang, Zhen
Format: Preprint
Published: 2026
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author Ma, Fengbo
Rao, Zixin
Li, Xiaoting
Chen, Zhetao
Sun, Hongyue
Zhao, Yiping
Chen, Xianyan
Xiang, Zhen
author_facet Ma, Fengbo
Rao, Zixin
Li, Xiaoting
Chen, Zhetao
Sun, Hongyue
Zhao, Yiping
Chen, Xianyan
Xiang, Zhen
contents Scientific research relies on accurate information retrieval from literature to support analytical decisions. In this work, we introduce a new task, INformation reTRieval through literAture reVIEW (IntraView), which aims to automate fine-grained information retrieval faithfully grounded in the provided content in response to research-driven queries, and propose IntrAgent, an LLM-based agent that addresses this challenging task. In particular, IntrAgent is designed to mimic human behaviors when reading literature for information retrieval -- identifying relevant sections and then iteratively extracting key details to refine the retrieved information. It follows a two-stage pipeline: a Section Ranking stage that prioritizes relevant literature sections through structural-knowledge-enabled reasoning, and an Iterative Reading stage that continuously extracts details and synthesizes them into concise, contextually grounded answers. To support rigorous evaluation, we introduce IntraBench, a new benchmark consisting of 315 test instances built from expert-authored questions paired with literature spanning five STEM domains. Across seven backbone LLMs, IntrAgent achieves on average 13.2% higher cross-domain accuracy than state-of-the-art RAG and research-agent baselines.
format Preprint
id arxiv_https___arxiv_org_abs_2604_22861
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle IntrAgent: An LLM Agent for Content-Grounded Information Retrieval through Literature Review
Ma, Fengbo
Rao, Zixin
Li, Xiaoting
Chen, Zhetao
Sun, Hongyue
Zhao, Yiping
Chen, Xianyan
Xiang, Zhen
Information Retrieval
Artificial Intelligence
Machine Learning
Scientific research relies on accurate information retrieval from literature to support analytical decisions. In this work, we introduce a new task, INformation reTRieval through literAture reVIEW (IntraView), which aims to automate fine-grained information retrieval faithfully grounded in the provided content in response to research-driven queries, and propose IntrAgent, an LLM-based agent that addresses this challenging task. In particular, IntrAgent is designed to mimic human behaviors when reading literature for information retrieval -- identifying relevant sections and then iteratively extracting key details to refine the retrieved information. It follows a two-stage pipeline: a Section Ranking stage that prioritizes relevant literature sections through structural-knowledge-enabled reasoning, and an Iterative Reading stage that continuously extracts details and synthesizes them into concise, contextually grounded answers. To support rigorous evaluation, we introduce IntraBench, a new benchmark consisting of 315 test instances built from expert-authored questions paired with literature spanning five STEM domains. Across seven backbone LLMs, IntrAgent achieves on average 13.2% higher cross-domain accuracy than state-of-the-art RAG and research-agent baselines.
title IntrAgent: An LLM Agent for Content-Grounded Information Retrieval through Literature Review
topic Information Retrieval
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2604.22861