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Semi-structured documents integrate diverse interleaved data elements (e.g., tables, charts, hierarchical paragraphs) arranged in various and often irregular layouts. These documents are widely observed across domains and account for a…

信息检索 · 计算机科学 2026-04-15 Bangrui Xu , Qihang Yao , Zirui Tang , Xuanhe Zhou , Yeye He , Shihan Yu , Qianqian Xu , Bin Wang , Guoliang Li , Conghui He , Fan Wu

Retrieval-augmented generation (RAG) enhances large language models (LLMs) by integrating external knowledge sources to address their limitations in accessing up-to-date or specialized information. A natural strategy to increase the…

计算与语言 · 计算机科学 2025-11-10 Song Wang , Zihan Chen , Peng Wang , Zhepei Wei , Zhen Tan , Yu Meng , Cong Shen , Jundong Li

While Vision Language Models (VLMs) have shown promise in Design-to-Code generation, they suffer from a "holistic bottleneck-failing to reconcile high-level structural hierarchy with fine-grained visual details, often resulting in layout…

计算机视觉与模式识别 · 计算机科学 2026-04-03 Xinhao Huang , Jinke Yu , Wenhao Xu , Zeyi Wen , Ying Zhou , Junzhuo Liu , Junhao Ji , Zulong Chen

Automatic table detection in PDF documents has achieved a great success but tabular data extraction are still challenging due to the integrity and noise issues in detected table areas. The accurate data extraction is extremely crucial in…

计算与语言 · 计算机科学 2022-05-24 Siwen Luo , Mengting Wu , Yiwen Gong , Wanying Zhou , Josiah Poon

Document parsing is a fine-grained task where image resolution significantly impacts performance. While advanced research leveraging vision-language models benefits from high-resolution input to boost model performance, this often leads to…

Recognizing the layout of unstructured digital documents is an important step when parsing the documents into structured machine-readable format for downstream applications. Deep neural networks that are developed for computer vision have…

计算与语言 · 计算机科学 2019-08-22 Xu Zhong , Jianbin Tang , Antonio Jimeno Yepes

Retrieval-Augmented Generation (RAG) is a powerful strategy for improving the factual accuracy of models by retrieving external knowledge relevant to queries and incorporating it into the generation process. However, existing approaches…

计算机视觉与模式识别 · 计算机科学 2025-05-30 Soyeong Jeong , Kangsan Kim , Jinheon Baek , Sung Ju Hwang

The automated generation of layouts is vital for embodied intelligence and autonomous systems, supporting applications from virtual environment construction to home robot deployment. Current approaches, however, suffer from spatial…

机器人学 · 计算机科学 2025-07-08 Weixing Chen , Dafeng Chi , Yang Liu , Yuxi Yang , Yexin Zhang , Yuzheng Zhuang , Xingyue Quan , Jianye Hao , Guanbin Li , Liang Lin

High-quality exploratory data analysis (EDA) is essential in the data science pipeline, but remains highly dependent on analysts' expertise and effort. While recent LLM-based approaches partially reduce this burden, they struggle to…

人机交互 · 计算机科学 2026-02-20 Yi Shan , Yixuan He , Zekai Shao , Kai Xu , Siming Chen

Building codes contain critical information for ensuring safety, regulatory compliance, and informed decision-making in construction and engineering. Automated question answering systems over such codes enable quick and accurate access to…

计算与语言 · 计算机科学 2025-11-25 Mohammad Aqib , Mohd Hamza , Ying Hei Chui , Qipei Mei

Extracting information from unstructured text documents is a demanding task, since these documents can have a broad variety of different layouts and a non-trivial reading order, like it is the case for multi-column documents or nested…

人工智能 · 计算机科学 2022-02-08 Matthias Engelbach , Dennis Klau , Jens Drawehn , Maximilien Kintz

Understanding the contents of multimodal documents is essential to accurately extract relevant evidence and use it for reasoning. Existing document understanding models tend to generate answers with a single word or phrase directly,…

信息检索 · 计算机科学 2024-08-15 Jinxu Zhang

Document Layout Analysis is crucial for real-world document understanding systems, but it encounters a challenging trade-off between speed and accuracy: multimodal methods leveraging both text and visual features achieve higher accuracy but…

计算机视觉与模式识别 · 计算机科学 2024-10-17 Zhiyuan Zhao , Hengrui Kang , Bin Wang , Conghui He

The availability of metadata for scientific documents is pivotal in propelling scientific knowledge forward and for adhering to the FAIR principles (i.e. Findability, Accessibility, Interoperability, and Reusability) of research findings.…

信息检索 · 计算机科学 2025-01-10 Zeyd Boukhers , Cong Yang

Despite significant progress in multimodal large language models (MLLMs), their performance on complex, multi-page document comprehension remains inadequate, largely due to the lack of high-quality, document-level datasets. While current…

计算机视觉与模式识别 · 计算机科学 2025-07-22 Yuchen Duan , Zhe Chen , Yusong Hu , Weiyun Wang , Shenglong Ye , Botian Shi , Lewei Lu , Qibin Hou , Tong Lu , Hongsheng Li , Jifeng Dai , Wenhai Wang

Document information extraction tasks performed by humans create data consisting of a PDF or document image input, and extracted string outputs. This end-to-end data is naturally consumed and produced when performing the task because it is…

计算与语言 · 计算机科学 2021-04-26 Rasmus Berg Palm , Florian Laws , Ole Winther

Document layout analysis is crucial for understanding document structures. On this task, vision and semantics of documents, and relations between layout components contribute to the understanding process. Though many works have been…

计算机视觉与模式识别 · 计算机科学 2021-05-14 Peng Zhang , Can Li , Liang Qiao , Zhanzhan Cheng , Shiliang Pu , Yi Niu , Fei Wu

Building document-grounded dialogue systems have received growing interest as documents convey a wealth of human knowledge and commonly exist in enterprises. Wherein, how to comprehend and retrieve information from documents is a…

计算与语言 · 计算机科学 2022-07-15 Zhenyu Zhang , Bowen Yu , Haiyang Yu , Tingwen Liu , Cheng Fu , Jingyang Li , Chengguang Tang , Jian Sun , Yongbin Li

Vision-Language Models (VLMs) excel in diverse visual tasks but face challenges in document understanding, which requires fine-grained text processing. While typical visual tasks perform well with low-resolution inputs, reading-intensive…

计算机视觉与模式识别 · 计算机科学 2024-12-13 Mor Shpigel Nacson , Aviad Aberdam , Roy Ganz , Elad Ben Avraham , Alona Golts , Yair Kittenplon , Shai Mazor , Ron Litman

This paper presents an experience report on the development of Retrieval Augmented Generation (RAG) systems using PDF documents as the primary data source. The RAG architecture combines generative capabilities of Large Language Models…

软件工程 · 计算机科学 2024-10-22 Ayman Asad Khan , Md Toufique Hasan , Kai Kristian Kemell , Jussi Rasku , Pekka Abrahamsson