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Smartphones have been employed with biometric-based verification systems to provide security in highly sensitive applications. Audio-visual biometrics are getting popular due to their usability, and also it will be challenging to spoof…

Machine learning applications are becoming increasingly pervasive in our society. Since these decision-making systems rely on data-driven learning, risk is that they will systematically spread the bias embedded in data. In this paper, we…

Machine Learning · Statistics 2023-02-09 Alessandro Castelnovo , Riccardo Crupi , Nicole Inverardi , Daniele Regoli , Andrea Cosentini

Perception and decision-making in high-speed dynamic scenarios remain challenging for current robots. In contrast, humans and animals can rapidly perceive and make decisions in such environments. Taking table tennis as a typical example,…

Robotics · Computer Science 2026-04-07 Ziqi Wang , Jingyue Zhao , Xun Xiao , Jichao Yang , Yaohua Wang , Shi Xu , Lei Wang , Huadong Dai

As the interplay between human-generated and synthetic data evolves, new challenges arise in scientific discovery concerning the integrity of the data and the stability of the models. In this work, we examine the role of synthetic data as…

The problem of synthetic speech detection has enjoyed considerable attention, with recent methods achieving low error rates across several established benchmarks. However, to what extent can low error rates on academic benchmarks translate…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-23 Ashi Garg , Zexin Cai , Lin Zhang , Henry Li Xinyuan , Leibny Paola García-Perera , Kevin Duh , Sanjeev Khudanpur , Matthew Wiesner , Nicholas Andrews

Metric learning is a widely used method for few shot learning in which the quality of prototypes plays a key role in the algorithm. In this paper we propose the trainable prototypes for distance measure instead of the artificial ones within…

Computer Vision and Pattern Recognition · Computer Science 2021-06-22 Jianyi Li , Guizhong Liu

Quality of data plays an important role in most deep learning tasks. In the speech community, transcription of speech recording is indispensable. Since the transcription is usually generated artificially, automatically finding errors in…

Computation and Language · Computer Science 2019-07-23 Xiaofei Wang , Jinyi Yang , Ruizhi Li , Samik Sadhu , Hynek Hermansky

Smart vehicles produce large amounts of data, much of which is sensitive and at risk of privacy breaches. As attackers increasingly exploit anonymised metadata within these datasets to profile drivers, it's important to find solutions that…

Cryptography and Security · Computer Science 2024-10-14 Krish Parikh

Event-based datasets are crucial for cybersecurity analysis. A key use case is detecting event-based signatures, which represent attacks spanning multiple events and can only be understood once the relevant events are identified and linked.…

Cryptography and Security · Computer Science 2026-01-21 Saad Khan , Simon Parkinson , Monika Roopak

Machine learning systems are increasingly deployed in high-stakes domains, yet they remain vulnerable to bias systematic disparities that disproportionately impact specific demographic groups. Traditional bias detection methods often depend…

Machine Learning · Computer Science 2025-06-16 Chirudeep Tupakula , Rittika Shamsuddin

This research introduces an innovative approach to explore the cognitive and biologically inspired underpinnings of feature vector splitting for analyzing the significance of different attributes in e-security biometric signature…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Marcos Faundez , Moises Diaz , Miguel Angel Ferrer

Protecting user data privacy can be achieved via many methods, from statistical transformations to generative models. However, all of them have critical drawbacks. For example, creating a transformed data set using traditional techniques is…

Machine Learning · Computer Science 2024-04-24 Tânia Carvalho , Nuno Moniz , Luís Antunes , Nitesh Chawla

We study the suitability of keystroke dynamics to authenticate 100K users typing free-text. For this, we first analyze to what extent our method based on a Siamese Recurrent Neural Network (RNN) is able to authenticate users when the amount…

Computer Vision and Pattern Recognition · Computer Science 2020-06-11 Alejandro Acien , John V. Monaco , Aythami Morales , Ruben Vera-Rodriguez , Julian Fierrez

Synthetic data is increasingly used to support research without exposing sensitive user content. Social media data is one of the types of datasets that would hugely benefit from representative synthetic equivalents that can be used to…

Cryptography and Security · Computer Science 2026-03-06 Henry Tari , Adriana Iamnitchi

Keystroke dynamics study the way in which users input text via their keyboards. Having the ability to differentiate users, typing behaviors can unobtrusively form a component of a behavioral biometric recognition system to improve existing…

Cryptography and Security · Computer Science 2020-06-17 Blaine Ayotte , Mahesh K. Banavar , Daqing Hou , Stephanie Schuckers

The use of synthetically generated data for training models is becoming a common practice. While generated data can augment the training data, repeated training on synthetic data raises concerns about distribution drift and degradation of…

Machine Learning · Computer Science 2025-12-16 Daniil Zverev , A. Sophia Koepke , Joao F. Henriques

This paper reports on the second GENEA Challenge to benchmark data-driven automatic co-speech gesture generation. Participating teams used the same speech and motion dataset to build gesture-generation systems. Motion generated by all these…

Human-Computer Interaction · Computer Science 2022-08-23 Youngwoo Yoon , Pieter Wolfert , Taras Kucherenko , Carla Viegas , Teodor Nikolov , Mihail Tsakov , Gustav Eje Henter

Machine-learning models are increasingly used to predict properties of atoms in chemical systems. There have been major advances in developing descriptors and regression frameworks for this task, typically starting from (relatively) small…

Chemical Physics · Physics 2022-11-30 John L. A. Gardner , Zoé Faure Beaulieu , Volker L. Deringer

Large fingerprint datasets, while important for training and evaluation, are time-consuming and expensive to collect and require strict privacy measures. Researchers are exploring the use of synthetic fingerprint data to address these…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Syed Konain Abbas , Sandip Purnapatra , M. G. Sarwar Murshed , Conor Miller-Lynch , Lambert Igene , Soumyabrata Dey , Stephanie Schuckers , Faraz Hussain

Imitation learning for robotic tasks has relied primarily on policies trained only on successful demonstrations, although failures are unavoidable during human data collection. Many existing approaches for exploiting failure data require…

Robotics · Computer Science 2026-05-21 Kana Miyamoto , Kanata Suzuki , Tetsuya Ogata