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Various NLP tasks require a complex hierarchical structure over nodes, where each node is a cluster of items. Examples include generating entailment graphs, hierarchical cross-document coreference resolution, annotating event and subevent…

Computation and Language · Computer Science 2023-11-21 Arie Cattan , Tom Hope , Doug Downey , Roy Bar-Haim , Lilach Eden , Yoav Kantor , Ido Dagan

This paper proposes direct learning of image classification from user-supplied tags, without filtering. Each tag is supplied by the user who shared the image online. Enormous numbers of these tags are freely available online, and they give…

Computer Vision and Pattern Recognition · Computer Science 2014-11-26 Hamid Izadinia , Ali Farhadi , Aaron Hertzmann , Matthew D. Hoffman

This paper describes CALICO, a method for multi-camera calibration suitable for challenging contexts: stationary and mobile multi-camera systems, cameras without overlapping fields of view, and non-synchronized cameras. Recent approaches…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Amy Tabb , Henry Medeiros , Mitchell J. Feldmann , Thiago T. Santos

Search and information retrieval systems are becoming more expressive in interpreting user queries beyond the traditional weighted bag-of-words model of document retrieval. For example, searching for a flight status or a game score returns…

Human-Computer Interaction · Computer Science 2023-08-01 Vidya Setlur , Andriy Kanyuka , Arjun Srinivasan

We present OCR-Quality, a comprehensive human-annotated dataset designed for evaluating and developing OCR quality assessment methods. The dataset consists of 1,000 PDF pages converted to PNG images at 300 DPI, sampled from diverse…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Yulong Zhang

Annotating images with tags is useful for indexing and retrieving images. However, many available annotation data include missing or inaccurate annotations. In this paper, we propose an image annotation framework which sequentially performs…

Computer Vision and Pattern Recognition · Computer Science 2016-06-22 Yuqing Hou , Zhouchen Lin , Jin-ge Yao

The number of social images has exploded by the wide adoption of social networks, and people like to share their comments about them. These comments can be a description of the image, or some objects, attributes, scenes in it, which are…

Computer Vision and Pattern Recognition · Computer Science 2017-11-21 Junjie Zhang , Qi Wu , Jian Zhang , Chunhua Shen , Jianfeng Lu

Vision-Language Models (VLMs) lag behind Large Language Models due to the scarcity of annotated datasets, as creating paired visual-textual annotations is labor-intensive and expensive. To address this bottleneck, we introduce SAM2Auto, the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Arash Rocky , Q. M. Jonathan Wu

The real estate sector remains highly dependent on manual document handling and verification, making processes inefficient and prone to fraud. This work presents a system that integrates optical character recognition (OCR), natural language…

Cryptography and Security · Computer Science 2026-01-01 Henrique Lin , Tiago Dias , Miguel Correia

We present volkit, an open source library with high performance implementations of image manipulation and computer vision algorithms that focus on 3D volumetric representations. Volkit implements a cross-platform, performance-portable API…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Stefan Zellmann , Giovanni Aguirre , Jürgen P. Schulze

Information extraction from handwritten documents involves traditionally three distinct steps: Document Layout Analysis, Handwritten Text Recognition, and Named Entity Recognition. Recent approaches have attempted to integrate these steps…

Artificial Intelligence · Computer Science 2026-02-03 Thomas Constum , Pierrick Tranouez , Thierry Paquet

Digitization projects in humanities often generate vast quantities of page images from historical documents, presenting significant challenges for manual sorting and analysis. These archives contain diverse content, including various text…

Information Retrieval · Computer Science 2026-05-29 Kateryna Lutsai

This paper describes the COCO-Text dataset. In recent years large-scale datasets like SUN and Imagenet drove the advancement of scene understanding and object recognition. The goal of COCO-Text is to advance state-of-the-art in text…

Computer Vision and Pattern Recognition · Computer Science 2016-06-21 Andreas Veit , Tomas Matera , Lukas Neumann , Jiri Matas , Serge Belongie

We present an end-to-end trainable approach for Optical Character Recognition (OCR) on printed documents. Specifically, we propose a model that predicts a) a two-dimensional character grid (\emph{chargrid}) representation of a document…

Computer Vision and Pattern Recognition · Computer Science 2020-02-28 Christian Reisswig , Anoop R Katti , Marco Spinaci , Johannes Höhne

Automatic captioning of images is a task that combines the challenges of image analysis and text generation. One important aspect in captioning is the notion of attention: How to decide what to describe and in which order. Inspired by the…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Sen He , Wentong Liao , Hamed R. Tavakoli , Michael Yang , Bodo Rosenhahn , Nicolas Pugeault

Scientific knowledge is predominantly stored in books and scientific journals, often in the form of PDFs. However, the PDF format leads to a loss of semantic information, particularly for mathematical expressions. We propose Nougat (Neural…

Machine Learning · Computer Science 2023-08-28 Lukas Blecher , Guillem Cucurull , Thomas Scialom , Robert Stojnic

Most of the textual information available to us are temporally variable. In a world where information is dynamic, time-stamping them is a very important task. Documents are a good source of information and are used for many tasks like,…

Computation and Language · Computer Science 2021-06-29 Swayambhu Nath Ray

Considering the market's competitiveness and the complexity of organizations and projects, analyzing data is crucial to decision support on software development and project management processes. These practices are essential to increase…

Information Retrieval · Computer Science 2022-11-28 Andre Nobre Barrocas , Alberto Rodrigues da Silva , Joao Paulo Saraiva

The objective of image captioning models is to bridge the gap between the visual and linguistic modalities by generating natural language descriptions that accurately reflect the content of input images. In recent years, researchers have…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Sara Sarto , Marcella Cornia , Lorenzo Baraldi , Alessandro Nicolosi , Rita Cucchiara

Despite the progress of interactive image segmentation methods, high-quality pixel-level annotation is still time-consuming and laborious - a bottleneck for several deep learning applications. We take a step back to propose interactive and…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Jord{ã}o Bragantini , Alexandre X Falc{ã}o , Laurent Najman