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Time Series Classification (TSC) has received much attention in the past two decades and is still a crucial and challenging problem in data science and knowledge engineering. Indeed, along with the increasing availability of time series…

机器学习 · 计算机科学 2023-08-14 Aurélien Renault , Alexis Bondu , Vincent Lemaire , Dominique Gay

Behavioral biometrics-based continuous authentication is a promising authentication scheme, which uses behavioral biometrics recorded by built-in sensors to authenticate smartphone users throughout the session. However, current continuous…

人机交互 · 计算机科学 2026-01-08 Mingming Hu , Kun Zhang , Ruibang You , Bibo Tu

Facial biometrics has been recently received tremendous attention as a convenient replacement for traditional authentication systems. Consequently, detecting malicious attempts has found great significance, leading to extensive studies in…

计算机视觉与模式识别 · 计算机科学 2022-01-03 Arian Sabaghi , Marzieh Oghbaie , Kooshan Hashemifard , Mohammad Akbari

Feature selection problems arise in a variety of applications, such as microarray analysis, clinical prediction, text categorization, image classification and face recognition, multi-label learning, and classification of internet traffic.…

机器学习 · 统计学 2018-02-15 Francisco Macedo , M. Rosário Oliveira , António Pacheco , Rui Valadas

Behavioral biometrics are key components in the landscape of research in continuous and active user authentication. However, there is a lack of large datasets with multiple activities, such as typing, gait and swipe performed by the same…

Accurately identifying hands in images is a key sub-task for human activity understanding with wearable first-person point-of-view cameras. Traditional hand segmentation approaches rely on a large corpus of manually labeled data to generate…

计算机视觉与模式识别 · 计算机科学 2018-06-18 Yubo Zhang , Vishnu Naresh Boddeti , Kris M. Kitani

Deep neural network is an effective choice to automatically recognize human actions utilizing data from various wearable sensors. These networks automate the process of feature extraction relying completely on data. However, various noises…

信号处理 · 电气工程与系统科学 2021-01-05 Tanvir Mahmud , A. Q. M. Sazzad Sayyed , Shaikh Anowarul Fattah , Sun-Yuan Kung

Human activity recognition has gained importance in recent years due to its applications in various fields such as health, security and surveillance, entertainment, and intelligent environments. A significant amount of work has been done on…

计算机视觉与模式识别 · 计算机科学 2021-04-28 Zawar Hussain , Michael Sheng , Wei Emma Zhang

Biometrics involves using unique human traits, both physical and behavioral, for the digital identification of individuals to provide access to systems, devices, or information. Within the field of computer science, it acts as a method for…

密码学与安全 · 计算机科学 2024-04-29 Sajjad Bhuiyan

As mobile app usage continues to rise, so does the generation of extensive user interaction data, which includes actions such as swiping, zooming, or the time spent on a screen. Apps often collect a large amount of this data and claim to…

软件工程 · 计算机科学 2024-04-24 Feiyang Tang , Bjarte M. Østvold

Biometrics systems have been used in a wide range of applications and have improved people authentication. Signature verification is one of the most common biometric methods with techniques that employ various specifications of a signature.…

计算机视觉与模式识别 · 计算机科学 2016-11-15 Mohsen Fayyaz , Mohammad Hajizadeh_Saffar , Mohammad Sabokrou , Mahmood Fathy

Digital human identity management, can now be seen as a social necessity, as it is essentially required in almost every public sector such as, financial inclusions, security, banking, social networking e.t.c. Hence, in today's rampantly…

计算机视觉与模式识别 · 计算机科学 2019-03-26 Ranjeet Ranjan Jha , Daksh Thapar , Shreyas Malakarjun Patil , Aditya Nigam

The increased need for unattended authentication in multiple scenarios has motivated a wide deployment of biometric systems in the last few years. This has in turn led to the disclosure of security concerns specifically related to biometric…

计算机视觉与模式识别 · 计算机科学 2019-09-13 Ruben Tolosana , Marta Gomez-Barrero , Christoph Busch , Javier Ortega-Garcia

Annotated data is an essential ingredient in natural language processing for training and evaluating machine learning models. It is therefore very desirable for the annotations to be of high quality. Recent work, however, has shown that…

计算与语言 · 计算机科学 2022-09-27 Jan-Christoph Klie , Bonnie Webber , Iryna Gurevych

The human face has a high potential for biometric identification due to its many individual traits. At the same time, such identification is vulnerable to biometric copies. These presentation attacks pose a great challenge in unsupervised…

计算机视觉与模式识别 · 计算机科学 2021-08-11 Martin Thümmel , Sven Sickert , Joachim Denzler

Authentication and authenticity have been a security challenge since the beginning of information sharing, especially in the context of digital information. With the advancement of generative artificial intelligence, these challenges have…

密码学与安全 · 计算机科学 2025-07-17 Wesley dos Reis Bezerra , Lais Machado Bezerra , Carlos Becker Westphall

We present an openly documented methodology for fine-tuning language models to detect temporal attack patterns in multi-agent AI workflows using OpenTelemetry trace analysis. We curate a dataset of 80,851 examples from 18 public…

人工智能 · 计算机科学 2026-01-06 Ron F. Del Rosario

Quantifying biometric characteristics within hand gestures involve derivation of fitness scores from a gesture and identity aware feature space. However, evaluating the quality of these scores remains an open question. Existing biometric…

计算机视觉与模式识别 · 计算机科学 2026-02-18 Aman Verma , Seshan Srirangarajan , Sumantra Dutta Roy

Mobile apps are predominantly integrated with cloud services to benefit from enhanced functionalities. Adopting authentication using secrets such as API keys is crucial to ensure secure mobile-cloud interactions. However, developers often…

密码学与安全 · 计算机科学 2025-11-11 Kevin Li , Lin Ling , Jinqiu Yang , Lili Wei

The authentication field is evolving towards mechanisms able to keep users continuously authenticated without the necessity of remembering or possessing authentication credentials. While existing continuous authentication systems have…