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We investigate the scalable image classification problem with a large number of categories. Hierarchical visual data structures are helpful for improving the efficiency and performance of large-scale multi-class classification. We propose a…

Computer Vision and Pattern Recognition · Computer Science 2017-09-18 Yanyun Qu , Li Lin , Fumin Shen , Chang Lu , Yang Wu , Yuan Xie , Dacheng Tao

The purpose of the paper is to propose models to reduce the semantic complexity in heterogeneous DLs. The aim is to introduce value-added services (treatment of term vagueness and document re-ranking) that gain a certain quality in DLs if…

Digital Libraries · Computer Science 2019-01-15 Philipp Mayr , Peter Mutschke , Vivien Petras

Document image parsing is challenging due to its complexly intertwined elements such as text paragraphs, figures, formulas, and tables. Current approaches either assemble specialized expert models or directly generate page-level content…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Hao Feng , Shu Wei , Xiang Fei , Wei Shi , Yingdong Han , Lei Liao , Jinghui Lu , Binghong Wu , Qi Liu , Chunhui Lin , Jingqun Tang , Hao Liu , Can Huang

Conventional document layout analysis (DLA) traditionally depends on empirical priors or a fixed set of learnable queries executed in a single forward pass. While sufficient for early-generation documents with a small, predetermined number…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Yufan Chen , Omar Moured , Ruiping Liu , Junwei Zheng , Kunyu Peng , Jiaming Zhang , Rainer Stiefelhagen

Systematic literature reviews (SLRs) are fundamental to evidence-based research, but manual screening is an increasing bottleneck as scientific output grows. Screening features low prevalence of relevant studies and scarce, costly expert…

Machine Learning · Computer Science 2026-02-06 Parsa Vares

A key bottleneck in building automatic extraction models for visually rich documents like invoices is the cost of acquiring the several thousand high-quality labeled documents that are needed to train a model with acceptable accuracy. We…

Computation and Language · Computer Science 2022-11-01 Yichao Zhou , James B. Wendt , Navneet Potti , Jing Xie , Sandeep Tata

Legal documents are unstructured, use legal jargon, and have considerable length, making them difficult to process automatically via conventional text processing techniques. A legal document processing system would benefit substantially if…

Computation and Language · Computer Science 2022-11-08 Vijit Malik , Rishabh Sanjay , Shouvik Kumar Guha , Angshuman Hazarika , Shubham Nigam , Arnab Bhattacharya , Ashutosh Modi

Document image segmentation is crucial for document analysis and recognition but remains challenging due to the diversity of document formats and segmentation tasks. Existing methods often address these tasks separately, resulting in…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Xiao-Hui Li , Fei Yin , Cheng-Lin Liu

Online educational platforms organize academic questions based on a hierarchical learning taxonomy (subject-chapter-topic). Automatically tagging new questions with existing taxonomy will help organize these questions into different classes…

Computation and Language · Computer Science 2021-07-23 Venktesh V , Mukesh Mohania , Vikram Goyal

Deep learning-based approaches for automatic document layout analysis and content extraction have the potential to unlock rich information trapped in historical documents on a large scale. One major hurdle is the lack of large datasets for…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Zejiang Shen , Kaixuan Zhang , Melissa Dell

Compared with single-label image classification, multi-label image classification is more practical and challenging. Some recent studies attempted to leverage the semantic information of categories for improving multi-label image…

Computer Vision and Pattern Recognition · Computer Science 2021-04-05 Fengtao Zhou , Sheng Huang , Yun Xing

The rise of multi-modal search requests from users has highlighted the importance of multi-modal retrieval (i.e. image-to-text or text-to-image retrieval), yet the more complex task of image-to-multi-modal retrieval, crucial for many…

Information Retrieval · Computer Science 2024-06-11 Zida Cheng , Chen Ju , Shuai Xiao , Xu Chen , Zhonghua Zhai , Xiaoyi Zeng , Weilin Huang , Junchi Yan

Advances in Visually Rich Document Understanding (VrDU) have enabled information extraction and question answering over documents with complex layouts. Two tropes of architectures have emerged -- transformer-based models inspired by LLMs,…

Computation and Language · Computer Science 2024-01-08 Dongsheng Wang , Zhiqiang Ma , Armineh Nourbakhsh , Kang Gu , Sameena Shah

This paper presents a novel self-supervised learning method for handling conversational documents consisting of transcribed text of human-to-human conversations. One of the key technologies for understanding conversational documents is…

Computation and Language · Computer Science 2021-02-17 Ryo Masumura , Naoki Makishima , Mana Ihori , Akihiko Takashima , Tomohiro Tanaka , Shota Orihashi

Form understanding depends on both textual contents and organizational structure. Although modern OCR performs well, it is still challenging to realize general form understanding because forms are commonly used and of various formats. The…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Zilong Wang , Mingjie Zhan , Xuebo Liu , Ding Liang

The ubiquitous role of the cyber-infrastructures, such as the WWW, provides myriad opportunities for machine learning and its broad spectrum of application domains taking advantage of digital communication. Pattern classification and…

Conventional Optical Character Recognition (OCR) systems are challenged by variant invoice layouts, handwritten text, and low-quality scans, which are often caused by strong template dependencies that restrict their flexibility across…

Computer Vision and Pattern Recognition · Computer Science 2026-01-09 Khushi Khanchandani , Advait Thakur , Akshita Shetty , Chaitravi Reddy , Ritisa Behera

In document classification, graph-based models effectively capture document structure, overcoming sequence length limitations and enhancing contextual understanding. However, most existing graph document representations rely on heuristics,…

Computation and Language · Computer Science 2025-08-05 Margarita Bugueño , Gerard de Melo

We describe an approach to learning rich representations for images, that enables simple and effective predictors in a range of vision tasks involving spatially structured maps. Our key idea is to map small image elements to feature…

Computer Vision and Pattern Recognition · Computer Science 2019-09-02 Mohammadreza Mostajabi

Apart from discriminative models for classification and object detection tasks, the application of deep convolutional neural networks to basic research utilizing natural imaging data has been somewhat limited; particularly in cases where a…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 R. Ian Etheredge , Manfred Schartl , Alex Jordan