{"ID":6267230,"CreatedAt":"2026-07-10T01:11:38.759438437Z","UpdatedAt":"2026-07-13T01:02:08.706470581Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2607.08539","arxiv_id":"2607.08539","title":"DocMaster: A Hierarchical Structure-Aware System for Document Analysis","abstract":"Leveraging large language models (LLMs) to analyze complex documents -- such as academic papers, technical manuals, and financial reports -- has emerged as a mainstream and critical task in both research and industry. In practice, users must first filter relevant documents from large collections and then conduct in-depth analysis (e.g. question answering) over the selected subset, yet existing systems flatten documents into plain-text chunks, discarding the rich hierarchical structures (sections, tables, figures, equations) and degrading downstream performance. We present DocMaster, a hierarchical structure-aware document analysis system. DocMaster parses documents into hierarchical document trees preserving original layouts and constructs a structure-aware semantic index that enables accurate document filtering and in-depth analysis. We demonstrate DocMaster through an interactive web interface that enables users to upload document collections, construct tree-based and multi-view semantic indices, filter relevant documents via natural-language conditions, and perform follow-up question answering over the filtered results. The source code, data, and demo are available at https://doc-master.github.io/.","short_abstract":"Leveraging large language models (LLMs) to analyze complex documents -- such as academic papers, technical manuals, and financial reports -- has emerged as a mainstream and critical task in both research and industry. In practice, users must first filter relevant documents from large collections and then conduct in-dep...","url_abs":"https://arxiv.org/abs/2607.08539","url_pdf":"https://arxiv.org/pdf/2607.08539v1","authors":"[\"Ziqi Chen\",\"Yingli Zhou\",\"Fangyuan Zhang\",\"Quanqing Xu\",\"Chuanhui Yang\",\"Yixiang Fang\"]","published":"2026-07-09T14:33:47Z","proceeding":"cs.DB","tasks":"[\"cs.DB\",\"cs.AI\"]","methods":"[\"Large Language Model\",\"Language Model\"]","has_code":false}