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Recently, many studies have demonstrated that exclusively incorporating OCR-derived text and spatial layouts with large language models (LLMs) can be highly effective for document understanding tasks. However, existing methods that…

Computation and Language · Computer Science 2025-05-20 Jinghui Lu , Haiyang Yu , Yanjie Wang , Yongjie Ye , Jingqun Tang , Ziwei Yang , Binghong Wu , Qi Liu , Hao Feng , Han Wang , Hao Liu , Can Huang

This work presents DocPedia, a novel large multimodal model (LMM) for versatile OCR-free document understanding, capable of parsing images up to 2,560$\times$2,560 resolution. Unlike existing work either struggle with high-resolution…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Hao Feng , Qi Liu , Hao Liu , Jingqun Tang , Wengang Zhou , Houqiang Li , Can Huang

While Multi-view Graph Neural Networks (MVGNNs) excel at leveraging diverse modalities for learning object representation, existing methods assume identical local topology structures across modalities that overlook real-world discrepancies.…

Machine Learning · Computer Science 2024-06-05 Peiyu Liang , Hongchang Gao , Xubin He

Recent methods that integrate spatial layouts with text for document understanding in large language models (LLMs) have shown promising results. A commonly used method is to represent layout information as text tokens and interleave them…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Zhaoqing Zhu , Chuwei Luo , Zirui Shao , Feiyu Gao , Hangdi Xing , Qi Zheng , Ji Zhang

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…

Computer Vision and Pattern Recognition · Computer Science 2021-05-14 Peng Zhang , Can Li , Liang Qiao , Zhanzhan Cheng , Shiliang Pu , Yi Niu , Fei Wu

Self-supervised vision-language pretraining from pure images and text with a contrastive loss is effective, but ignores fine-grained alignment due to a dual-stream architecture that aligns image and text representations only on a global…

Computer Vision and Pattern Recognition · Computer Science 2022-07-29 Zaid Khan , Vijay Kumar BG , Xiang Yu , Samuel Schulter , Manmohan Chandraker , Yun Fu

Ontologies comprising of concepts, their attributes, and relationships are used in many knowledge based AI systems. While there have been efforts towards populating domain specific ontologies, we examine the role of document structure in…

Artificial Intelligence · Computer Science 2022-04-14 Abhay M Shalghar , Ayush Kumar , Balaji Ganesan , Aswin Kannan , Akshay Parekh , Shobha G

Structured data, rich in logical and relational information, has the potential to enhance the reasoning abilities of large language models (LLMs). Still, its integration poses a challenge due to the risk of overwhelming LLMs with excessive…

Computation and Language · Computer Science 2024-07-18 Xiaoyu Tan , Haoyu Wang , Xihe Qiu , Yuan Cheng , Yinghui Xu , Wei Chu , Yuan Qi

A large amount of document data exists in unstructured form such as raw images without any text information. Designing a practical document image analysis system is a meaningful but challenging task. In previous work, we proposed an…

Computer Vision and Pattern Recognition · Computer Science 2022-10-14 Chenxia Li , Ruoyu Guo , Jun Zhou , Mengtao An , Yuning Du , Lingfeng Zhu , Yi Liu , Xiaoguang Hu , Dianhai Yu

Document Visual Question Answering (VQA) demands robust integration of text detection, recognition, and spatial reasoning to interpret complex document layouts. In this work, we introduce DLaVA, a novel, training-free pipeline that…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Ahmad Mohammadshirazi , Pinaki Prasad Guha Neogi , Ser-Nam Lim , Rajiv Ramnath

Multi-document (MD) processing is crucial for LLMs to handle real-world tasks such as summarization and question-answering across large sets of documents. While LLMs have improved at processing long inputs, MD contexts still present unique…

Computation and Language · Computer Science 2025-04-30 Gabrielle Kaili-May Liu , Bowen Shi , Avi Caciularu , Idan Szpektor , Arman Cohan

Recent advances in image-text pretraining have significantly enhanced visual understanding by aligning visual and textual representations. Contrastive Language-Image Pretraining (CLIP) has played a pivotal role in multimodal learning.…

Computer Vision and Pattern Recognition · Computer Science 2026-02-20 Zihan Li , Yiqing Wang , Sina Farsiu , Paul Kinahan

Document Layout analysis (DLA), is the process by which a page is parsed into meaningful elements, often using machine learning models. Typically, the quality of a model is judged using general object detection metrics such as IoU, F1 or…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Jonathan Bourne , Mwiza Simbeye , Ishtar Govia

We present an end-to-end, multimodal, fully convolutional network for extracting semantic structures from document images. We consider document semantic structure extraction as a pixel-wise segmentation task, and propose a unified model…

Computer Vision and Pattern Recognition · Computer Science 2017-06-09 Xiao Yang , Ersin Yumer , Paul Asente , Mike Kraley , Daniel Kifer , C. Lee Giles

Recent document question answering models consist of two key components: the vision encoder, which captures layout and visual elements in images, and a Large Language Model (LLM) that helps contextualize questions to the image and…

Computer Vision and Pattern Recognition · Computer Science 2023-09-27 Nidhi Hegde , Sujoy Paul , Gagan Madan , Gaurav Aggarwal

Documents often contain complex physical structures, which make the Document Layout Analysis (DLA) task challenging. As a pre-processing step for content extraction, DLA has the potential to capture rich information in historical or…

Information Retrieval · Computer Science 2021-08-31 Shoubin Li , Xuyan Ma , Shuaiqun Pan , Jun Hu , Lin Shi , Qing Wang

Multimodal Large Language Models (MLLMs) have demonstrated remarkable capabilities in representing and understanding diverse modalities. However, they typically focus on modality alignment in a pairwise manner while overlooking structural…

Machine Learning · Computer Science 2025-06-13 Jiajin Liu , Dongzhe Fan , Jiacheng Shen , Chuanhao Ji , Daochen Zha , Qiaoyu Tan

The rapid advancement of unsupervised representation learning and large-scale pre-trained vision-language models has significantly improved cross-modal retrieval tasks. However, existing multi-modal information retrieval (MMIR) studies lack…

Information Retrieval · Computer Science 2025-10-20 Zirui Li , Siwei Wu , Yizhi Li , Xingyu Wang , Yi Zhou , Chenghua Lin

The rapid development of AI and LLMs has driven new methods of SDLC, in which a large portion of code, technical, and business documentation is generated automatically. However, since there is no single architectural framework that can…

Software Engineering · Computer Science 2026-04-02 Oleg Grynets , Vasyl Lyashkevych

While many NLP pipelines assume raw, clean texts, many texts we encounter in the wild, including a vast majority of legal documents, are not so clean, with many of them being visually structured documents (VSDs) such as PDFs. Conventional…

Computation and Language · Computer Science 2021-11-09 Yuta Koreeda , Christopher D. Manning