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While analyzing scanned documents, handwritten text can overlap with printed text. This overlap causes difficulties during the optical character recognition (OCR) and digitization process of documents, and subsequently, hurts downstream NLP…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Sina Gholamian , Ali Vahdat

One major drawback of state of the art Neural Networks (NN)-based approaches for document classification purposes is the large number of training samples required to obtain an efficient classification. The minimum required number is around…

计算机视觉与模式识别 · 计算机科学 2020-07-16 Joris Voerman , Aurelie Joseph , Mickael Coustaty , Vincent Poulain d Andecy , Jean-Marc Ogier

Word spotting has become a field of strong research interest in document image analysis over the last years. Recently, AttributeSVMs were proposed which predict a binary attribute representation. At their time, this influential method…

计算机视觉与模式识别 · 计算机科学 2017-12-21 Sebastian Sudholt , Gernot Fink

Recently, methods based on Convolutional Neural Networks (CNN) achieved impressive success in semantic segmentation tasks. However, challenges such as the class imbalance and the uncertainty in the pixel-labeling process are not completely…

For management, documents are categorized into a specific category, and to do these, most of the organizations use manual labor. In today's automation era, manual efforts on such a task are not justified, and to avoid this, we have so many…

机器学习 · 计算机科学 2020-04-20 Ritu Yadav

We present a new Convolutional Neural Network (CNN) model for text classification that jointly exploits labels on documents and their component sentences. Specifically, we consider scenarios in which annotators explicitly mark sentences (or…

计算与语言 · 计算机科学 2016-09-27 Ye Zhang , Iain Marshall , Byron C. Wallace

Research has shown that Convolutional Neural Networks (CNN) can be effectively applied to text classification as part of a predictive coding protocol. That said, most research to date has been conducted on data sets with short documents…

In this study, we systematically investigate the impact of class imbalance on classification performance of convolutional neural networks (CNNs) and compare frequently used methods to address the issue. Class imbalance is a common problem…

计算机视觉与模式识别 · 计算机科学 2018-10-16 Mateusz Buda , Atsuto Maki , Maciej A. Mazurowski

Document classification is a challenging task with important applications. The deep learning approaches to the problem have gained much attention recently. Despite the progress, the proposed models do not incorporate the knowledge of the…

计算与语言 · 计算机科学 2019-10-15 Jader Abreu , Luis Fred , David Macêdo , Cleber Zanchettin

The Dice score is widely used for binary segmentation due to its robustness to class imbalance. Soft generalisations of the Dice score allow it to be used as a loss function for training convolutional neural networks (CNN). Although CNNs…

计算机视觉与模式识别 · 计算机科学 2018-02-27 Lucas Fidon , Wenqi Li , Luis C. Garcia-Peraza-Herrera , Jinendra Ekanayake , Neil Kitchen , Sebastien Ourselin , Tom Vercauteren

Solving the classification problem, unbalanced number of dataset among the classes often causes performance degradation. Especially when some classes dominate the other classes with its large number of datasets, trained model shows low…

计算机视觉与模式识别 · 计算机科学 2018-07-10 Dohyeun Kim , Tae Joon Jun , Daeyoung Kim , Youngsub Eom

Automatic tool detection from surgical imagery has a multitude of useful applications, such as real-time computer assistance for the surgeon. Using the successful residual network architecture, a system that can distinguish 21 different…

计算机视觉与模式识别 · 计算机科学 2018-05-16 Jonas Prellberg , Oliver Kramer

Previous researchers have considered sentiment analysis as a document classification task, in which input documents are classified into predefined sentiment classes. Although there are sentences in a document that support important…

计算与语言 · 计算机科学 2021-03-10 Gihyeon Choi , Shinhyeok Oh , Harksoo Kim

The success of Deep Neural Network (DNN) models significantly depends on the quality of provided annotations. In medical image segmentation, for example, having multiple expert annotations for each data point is common to minimize…

计算机视觉与模式识别 · 计算机科学 2025-02-12 Asma Ahmed Hashmi , Aigerim Zhumabayeva , Nikita Kotelevskii , Artem Agafonov , Mohammad Yaqub , Maxim Panov , Martin Takáč

Errors in measurements are key to weighting the value of data, but are often neglected in Machine Learning (ML). We show how Convolutional Neural Networks (CNNs) are able to learn about the context and patterns of signal and noise, leading…

机器学习 · 计算机科学 2021-08-11 Natália V. N. Rodrigues , L. Raul Abramo , Nina S. Hirata

Text line segmentation is one of the key steps in historical document understanding. It is challenging due to the variety of fonts, contents, writing styles and the quality of documents that have degraded through the years. In this paper,…

计算机视觉与模式识别 · 计算机科学 2022-10-24 Mélodie Boillet , Christopher Kermorvant , Thierry Paquet

Linguistic features have shown promising applications for detecting various cognitive impairments. To improve detection accuracies, increasing the amount of data or the number of linguistic features have been two applicable approaches.…

计算与语言 · 计算机科学 2019-03-29 Zining Zhu , Jekaterina Novikova , Frank Rudzicz

Document clustering is an unsupervised approach in which a large collection of documents (corpus) is subdivided into smaller, meaningful, identifiable, and verifiable sub-groups (clusters). Meaningful representation of documents and…

信息检索 · 计算机科学 2014-12-08 Muhammad Rafi , Farnaz Amin , Mohammad Shahid Shaikh

Morphologies of red blood cells are normally interpreted by a pathologist. It is time-consuming and laborious. Furthermore, a misclassified red blood cell morphology will lead to false disease diagnosis and improper treatment. Thus, a…

图像与视频处理 · 电气工程与系统科学 2025-02-06 Kitsuchart Pasupa , Supawit Vatathanavaro , Suchat Tungjitnob

When searching for information, a human reader first glances over a document, spots relevant sections and then focuses on a few sentences for resolving her intention. However, the high variance of document structure complicates to identify…

计算与语言 · 计算机科学 2019-02-14 Sebastian Arnold , Rudolf Schneider , Philippe Cudré-Mauroux , Felix A. Gers , Alexander Löser
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