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Safety validation is important during the development of safety-critical autonomous systems but can require significant computational effort. Existing algorithms often start from scratch each time the system under test changes. We apply…

Machine Learning · Computer Science 2020-12-11 Anthony Corso , Mykel J. Kochenderfer

To address the annotation burden in LiDAR-based 3D object detection, active learning (AL) methods offer a promising solution. However, traditional active learning approaches solely rely on a small amount of labeled data to train an initial…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Zengran Wang , Yanan Zhang , Jiaxin Chen , Di Huang

Sign language is the primary language for people with a hearing loss. Sign language recognition (SLR) is the automatic recognition of sign language, which represents a challenging problem for computers, though some progress has been made…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Roman Töngi

This paper proposes a multi-section vector quantization approach for on-line signature recognition. We have used the MCYT database, which consists of 330 users and 25 skilled forgeries per person performed by 5 different impostors. This…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Juan-Manuel Pascual-Gaspar , Marcos Faundez-Zanuy , Carlos Vivaracho

This paper presents an Arabic Alphabet Sign Language recognition approach, using deep learning methods in conjunction with transfer learning and transformer-based models. We study the performance of the different variants on two publicly…

Computer Vision and Pattern Recognition · Computer Science 2024-10-02 Mazen Balat , Rewaa Awaad , Hend Adel , Ahmed B. Zaky , Salah A. Aly

Supervised training of optical flow predictors generally yields better accuracy than unsupervised training. However, the improved performance comes at an often high annotation cost. Semi-supervised training trades off accuracy against…

Computer Vision and Pattern Recognition · Computer Science 2022-09-29 Shuai Yuan , Xian Sun , Hannah Kim , Shuzhi Yu , Carlo Tomasi

Sign language is the primary communication language for people with disabling hearing loss. Sign language recognition (SLR) systems aim to recognize sign gestures and translate them into spoken language. One of the main challenges in SLR is…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Hasan Algafri , Hamzah Luqman , Sarah Alyami , Issam Laradji

Deep learning has become a breathtaking technology in the last years, overcoming traditional handcrafted approaches and even humans for many different tasks. However, in some tasks, such as the verification of handwritten signatures, the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-26 Ruben Tolosana , Ruben Vera-Rodriguez , Julian Fierrez , Javier Ortega-Garcia

In recent years, speech-based self-supervised learning (SSL) has made significant progress in various tasks, including automatic speech recognition (ASR). An ASR model with decent performance can be realized by fine-tuning an SSL model with…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-30 Zhisheng Zheng , Ziyang Ma , Yu Wang , Xie Chen

Sketch recognition allows natural and efficient interaction in pen-based interfaces. A key obstacle to building accurate sketch recognizers has been the difficulty of creating large amounts of annotated training data. Several authors have…

Computer Vision and Pattern Recognition · Computer Science 2019-03-08 Erelcan Yanik , Tevfik Metin Sezgin

Within the field of image and video recognition, the traditional approach is a dataset split into fixed training and test partitions. However, the labelling of the training set is time-consuming, especially as datasets grow in size and…

Computer Vision and Pattern Recognition · Computer Science 2016-12-08 Andrew Gilbert , Richard Bowden

Federated learning allows multiple parties to collaborate in learning a global model without revealing private data. The high cost of training and the significant value of the global model necessitates the need for ownership verification of…

Cryptography and Security · Computer Science 2023-05-11 Wenyuan Yang , Gongxi Zhu , Yuguo Yin , Hanlin Gu , Lixin Fan , Qiang Yang , Xiaochun Cao

Active learning aims to develop label-efficient algorithms by querying the most informative samples to be labeled by an oracle. The design of efficient training methods that require fewer labels is an important research direction that…

Computer Vision and Pattern Recognition · Computer Science 2019-12-23 Ali Mottaghi , Serena Yeung

Much recent work on visual recognition aims to scale up learning to massive, noisily-annotated datasets. We address the problem of scaling- up the evaluation of such models to large-scale datasets with noisy labels. Current protocols for…

Computer Vision and Pattern Recognition · Computer Science 2018-07-03 Phuc Nguyen , Deva Ramanan , Charless Fowlkes

A genuine signer's signature is naturally unstable even at short time-intervals whereas, expert forgers always try to perfectly mimic a genuine signer's signature. This presents a challenge which puts a genuine signer at risk of being…

Computer Vision and Pattern Recognition · Computer Science 2024-01-10 Paul Brimoh , Chollette C. Olisah

In many applications, data is easy to acquire but expensive and time-consuming to label prominent examples include medical imaging and NLP. This disparity has only grown in recent years as our ability to collect data improves. Under these…

Machine Learning · Computer Science 2021-04-07 Jaya Krishna Mandivarapu , Blake Camp , Rolando Estrada

Because manufacturing processes evolve fast, and since production visual aspect can vary significantly on a daily basis, the ability to rapidly update machine vision based inspection systems is paramount. Unfortunately, supervised learning…

Computer Vision and Pattern Recognition · Computer Science 2021-07-23 Antoine Cordier , Deepan Das , Pierre Gutierrez

Active learning (AL) is a prominent technique for reducing the annotation effort required for training machine learning models. Deep learning offers a solution for several essential obstacles to deploying AL in practice but introduces many…

Computation and Language · Computer Science 2022-05-10 Akim Tsvigun , Artem Shelmanov , Gleb Kuzmin , Leonid Sanochkin , Daniil Larionov , Gleb Gusev , Manvel Avetisian , Leonid Zhukov

Active learning (AL) combines data labeling and model training to minimize the labeling cost by prioritizing the selection of high value data that can best improve model performance. In pool-based active learning, accessible unlabeled data…

Machine Learning · Computer Science 2020-07-21 Mingfei Gao , Zizhao Zhang , Guo Yu , Sercan O. Arik , Larry S. Davis , Tomas Pfister

Automated signature verification is a critical biometric technique used in banking, identity authentication, and legal documentation. Despite the notable progress achieved by deep learning methods, most approaches in offline signature…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Matheus Ramos Parracho