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Handwritten Text Recognition (HTR) is a task of central importance in the field of document image understanding. State-of-the-art methods for HTR require the use of extensive annotated sets for training, making them impractical for…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Petros Georgoulas Wraight , Giorgos Sfikas , Ioannis Kordonis , Petros Maragos , George Retsinas

In enterprise datasets, documents are rarely pure. They are not just text, nor just numbers; they are a complex amalgam of narrative and structure. Current Retrieval-Augmented Generation (RAG) systems have attempted to address this…

Artificial Intelligence · Computer Science 2026-01-16 Alex Dantart , Marco Kóvacs-Navarro

This work presents a pattern-aware framework for automatic license plate recognition (ALPR), designed to operate reliably across diverse plate layouts and challenging real-world conditions. The proposed system consists of a modern,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Elham Shabaninia , Fatemeh Asadi-zeydabadi , Hossein Nezamabadi-pour

Tensor networks are efficient for extremely high-dimensional representation, but their model selection, known as tensor network structure search (TN-SS), is a challenging problem. Although several works have targeted TN-SS, most existing…

Machine Learning · Computer Science 2024-06-04 Junhua Zeng , Chao Li , Zhun Sun , Qibin Zhao , Guoxu Zhou

Hierarchical knowledge structures are ubiquitous across real-world domains and play a vital role in organizing information from coarse to fine semantic levels. While such structures have been widely used in taxonomy systems, biomedical…

Machine Learning · Computer Science 2026-03-10 Yunhui Liu , Yongchao Liu , Yinfeng Chen , Chuntao Hong , Tao Zheng , Tieke He

Text image super-resolution is a unique and important task to enhance readability of text images to humans. It is widely used as pre-processing in scene text recognition. However, due to the complex degradation in natural scenes, recovering…

Computer Vision and Pattern Recognition · Computer Science 2022-10-14 Rui Qin , Bin Wang , Yu-Wing Tai

Spatial representation learning (SRL) aims at learning general-purpose neural network representations from various types of spatial data (e.g., points, polylines, polygons, networks, images, etc.) in their native formats. Learning good…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Nemin Wu , Qian Cao , Zhangyu Wang , Zeping Liu , Yanlin Qi , Jielu Zhang , Joshua Ni , Xiaobai Yao , Hongxu Ma , Lan Mu , Stefano Ermon , Tanuja Ganu , Akshay Nambi , Ni Lao , Gengchen Mai

Important information that relates to a specific topic in a document is often organized in tabular format to assist readers with information retrieval and comparison, which may be difficult to provide in natural language. However, tabular…

Computer Vision and Pattern Recognition · Computer Science 2020-03-05 Xu Zhong , Elaheh ShafieiBavani , Antonio Jimeno Yepes

Super-resolution (SR) is an ill-posed inverse problem with many feasible solutions consistent with a given low-resolution image. On one hand, regressive SR models aim to balance fidelity and perceptual quality to yield a single solution,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Cansu Korkmaz , Ahmet Murat Tekalp , Zafer Dogan

Table reasoning, a task to answer questions by reasoning over data presented in tables, is an important topic due to the prevalence of knowledge stored in tabular formats. Recent solutions use Large Language Models (LLMs), exploiting the…

Artificial Intelligence · Computer Science 2026-01-14 Yuxiang Wang , Junhao Gan , Shengxiang Gao , Shenghao Ye , Zhengyi Yang , Jianzhong Qi

Image manipulation detection is to identify the authenticity of each pixel in images. One typical approach to uncover manipulation traces is to model image correlations. The previous methods commonly adopt the grids, which are fixed-size…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Xudong Wang , Jiaran Zhou , Huiyu Zhou , Junyu Dong , Yuezun Li

Session search involves a series of interactive queries and actions to fulfill user's complex information need. Current strategies typically prioritize sequential modeling for deep semantic understanding, overlooking the graph structure in…

Computer Vision and Pattern Recognition · Computer Science 2025-06-12 Songhao Wu , Quan Tu , Hong Liu , Jia Xu , Zhongyi Liu , Guannan Zhang , Ran Wang , Xiuying Chen , Rui Yan

Table structure recognition aims to extract the logical and physical structure of unstructured table images into a machine-readable format. The latest end-to-end image-to-text approaches simultaneously predict the two structures by two…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Yongshuai Huang , Ning Lu , Dapeng Chen , Yibo Li , Zecheng Xie , Shenggao Zhu , Liangcai Gao , Wei Peng

Many websites with an underlying database containing structured data provide the richest and most dense source of information relevant for topical data integration. The real data integration requires sustainable and reliable pattern…

Information Retrieval · Computer Science 2015-03-19 Z. Akbar , L. T. Handoko

Learned Sparse Retrieval (LSR) models encode text as weighted term vectors, which need to be sparse to leverage inverted index structures during retrieval. SPLADE, the most popular LSR model, uses FLOPS regularization to encourage vector…

Visual robot navigation within large-scale, semi-structured environments deals with various challenges such as computation intensive path planning algorithms or insufficient knowledge about traversable spaces. Moreover, many…

Robotics · Computer Science 2018-03-12 Fabian Blöchliger , Marius Fehr , Marcin Dymczyk , Thomas Schneider , Roland Siegwart

Segmentation-based methods are widely used for scene text detection due to their superiority in describing arbitrary-shaped text instances. However, two major problems still exist: 1) current label generation techniques are mostly empirical…

Computer Vision and Pattern Recognition · Computer Science 2021-03-17 Chenwei Cui , Liangfu Lu , Zhiyuan Tan , Amir Hussain

Document retrieval for tasks such as search and retrieval-augmented generation typically involves datasets that are unstructured: free-form text without explicit internal structure in each document. However, documents can have a structured…

Information Retrieval · Computer Science 2025-04-18 Millicent Li , Tongfei Chen , Benjamin Van Durme , Patrick Xia

Existing diffusion-based super-resolution approaches often exhibit semantic ambiguities due to inaccuracies and incompleteness in their text conditioning, coupled with the inherent tendency for cross-attention to divert towards irrelevant…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Chen Chen , Majid Abdolshah , Violetta Shevchenko , Hongdong Li , Chang Xu , Pulak Purkait

This work presents a novel approach to tabular data prediction leveraging graph structure learning and graph neural networks. Despite the prevalence of tabular data in real-world applications, traditional deep learning methods often…

Machine Learning · Computer Science 2023-05-26 Jay Chiehen Liao , Cheng-Te Li