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Autori principali: Liu, Shicheng, Jiang, Yucheng, Farook, Sajid, Sanchez, Camila Nicollier, Pena, David Fernando Castro, Lam, Monica S.
Natura: Preprint
Pubblicazione: 2026
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Accesso online:https://arxiv.org/abs/2604.06474
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author Liu, Shicheng
Jiang, Yucheng
Farook, Sajid
Sanchez, Camila Nicollier
Pena, David Fernando Castro
Lam, Monica S.
author_facet Liu, Shicheng
Jiang, Yucheng
Farook, Sajid
Sanchez, Camila Nicollier
Pena, David Fernando Castro
Lam, Monica S.
contents Deep research with Large Language Model (LLM) agents is emerging as a powerful paradigm for multi-step information discovery, synthesis, and analysis. However, existing approaches primarily focus on unstructured web data, while the challenges of conducting deep research over large-scale structured databases remain relatively underexplored. Unlike web-based research, effective data-centric research requires more than retrieval and summarization and demands iterative hypothesis generation, quantitative reasoning over structured schemas, and convergence toward a coherent analytical narrative. In this paper, we present DataSTORM, an LLM-based agentic system capable of autonomously conducting research across both large-scale structured databases and internet sources. Grounded in principles from Exploratory Data Analysis and Data Storytelling, DataSTORM reframes deep research over structured data as a thesis-driven analytical process: discovering candidate theses from data, validating them through iterative cross-source investigation, and developing them into coherent analytical narratives. We evaluate DataSTORM on InsightBench, where it achieves a new state-of-the-art result with a 19.4% relative improvement in insight-level recall and 7.2% in summary-level score. We further introduce a new dataset built on ACLED, a real-world complex database, and demonstrate that DataSTORM outperforms proprietary systems such as ChatGPT Deep Research across both automated metrics and human evaluations.
format Preprint
id arxiv_https___arxiv_org_abs_2604_06474
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle DataSTORM: Deep Research on Large-Scale Databases using Exploratory Data Analysis and Data Storytelling
Liu, Shicheng
Jiang, Yucheng
Farook, Sajid
Sanchez, Camila Nicollier
Pena, David Fernando Castro
Lam, Monica S.
Computation and Language
Deep research with Large Language Model (LLM) agents is emerging as a powerful paradigm for multi-step information discovery, synthesis, and analysis. However, existing approaches primarily focus on unstructured web data, while the challenges of conducting deep research over large-scale structured databases remain relatively underexplored. Unlike web-based research, effective data-centric research requires more than retrieval and summarization and demands iterative hypothesis generation, quantitative reasoning over structured schemas, and convergence toward a coherent analytical narrative. In this paper, we present DataSTORM, an LLM-based agentic system capable of autonomously conducting research across both large-scale structured databases and internet sources. Grounded in principles from Exploratory Data Analysis and Data Storytelling, DataSTORM reframes deep research over structured data as a thesis-driven analytical process: discovering candidate theses from data, validating them through iterative cross-source investigation, and developing them into coherent analytical narratives. We evaluate DataSTORM on InsightBench, where it achieves a new state-of-the-art result with a 19.4% relative improvement in insight-level recall and 7.2% in summary-level score. We further introduce a new dataset built on ACLED, a real-world complex database, and demonstrate that DataSTORM outperforms proprietary systems such as ChatGPT Deep Research across both automated metrics and human evaluations.
title DataSTORM: Deep Research on Large-Scale Databases using Exploratory Data Analysis and Data Storytelling
topic Computation and Language
url https://arxiv.org/abs/2604.06474