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Early detection of cognitive disorders such as Alzheimer's disease is critical for enabling timely clinical intervention and improving patient outcomes. In this work, we introduce CogniAlign, a multimodal architecture for Alzheimer's…

Machine Learning · Computer Science 2025-10-27 David Ortiz-Perez , Manuel Benavent-Lledo , Javier Rodriguez-Juan , Jose Garcia-Rodriguez , David Tomás

The aging society urgently requires scalable methods to monitor cognitive decline and identify social and psychological factors indicative of dementia risk in older adults. Our machine learning (ML) models captured facial, acoustic,…

In this paper we present the results of an exploratory study examining the potential of voice assistants (VA) for some groups of older adults in the context of Smart Home Technology (SHT). To research the aspect of older adults' interaction…

Human-Computer Interaction · Computer Science 2019-03-19 Jarosław Kowalski , Anna Jaskulska , Kinga Skorupska , Katarzyna Abramczuk , Cezary Biele , Wiesław Kopeć , Krzysztof Marasek

This paper strives for activity recognition under domain shift, for example caused by change of scenery or camera viewpoint. The leading approaches reduce the shift in activity appearance by adversarial training and self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Yunhua Zhang , Hazel Doughty , Ling Shao , Cees G. M. Snoek

In this paper, we introduce two metrics, namely, age of actuation (AoA) and age of actuated information (AoAI), within a discrete-time system model that integrates data caching and energy harvesting (EH). AoA evaluates the timeliness of…

Information Theory · Computer Science 2024-01-31 Ali Nikkhah , Anthony Ephremides , Nikolaos Pappas

Recently, there has been increased interest in fusing multimodal imaging to better understand brain organization. Specifically, accounting for knowledge of anatomical pathways connecting brain regions should lead to desirable outcomes such…

Applications · Statistics 2018-03-02 Ixavier A. Higgins , Suprateek Kundu , Ying Guo

Brain age prediction based on neuroimaging data could help characterize both the typical brain development and neuropsychiatric disorders. Pattern recognition models built upon functional connectivity (FC) measures derived from resting…

Computer Vision and Pattern Recognition · Computer Science 2018-01-15 Hongming Li , Theodore D. Satterthwaite , Yong Fan

To address the issue of limited channels and insufficient information collection in portable EEG devices, this study explores an EEG virtual channel signal generation network using a novel spatio-temporal feature fusion strategy. Based on…

Signal Processing · Electrical Eng. & Systems 2025-09-25 Shangqing Yuan , Wenshuang Zhai , Shengwen Guo

The vast majority of fMRI studies of task-related brain activity utilize common levels of task demands and analyses that rely on the central tendencies of the data. This approach does not take into account perceived difficulty nor regional…

Neurons and Cognition · Quantitative Biology 2021-10-14 Jason Steffener , Chris Habeck , Dylan Franklin , Meghan Lau , Yara Yakoub , Maryse Gad

Neuroimaging modalities such as functional magnetic resonance imaging (fMRI) and electroencephalography (EEG) provide information about neurological functions in complementary spatiotemporal resolutions; therefore, fusion of these…

Applications · Statistics 2020-12-23 Evrim Acar , Yuri Levin-Schwartz , Vince D. Calhoun , Tülay Adalı

The determination of biological brain age is a crucial biomarker in the assessment of neurological disorders and understanding of the morphological changes that occur during aging. Various machine learning models have been proposed for…

Image and Video Processing · Electrical Eng. & Systems 2023-06-12 Mansoor Ahmed , Usama Sardar , Sarwan Ali , Shafiq Alam , Murray Patterson , Imdad Ullah Khan

Age progression and regression refers to aesthetically render-ing a given face image to present effects of face aging and rejuvenation, respectively. Although numerous studies have been conducted in this topic, there are two major problems:…

Computer Vision and Pattern Recognition · Computer Science 2019-10-08 Qi Li , Yunfan Liu , Zhenan Sun

This study explores the use of electroencephalography (EEG)-based brain wave monitoring to enable dynamic difficulty adjustment (DDA) in a virtual reality (VR) gaming environment. Using the Task Engagement Index (TEI) derived from frontal…

Human-Computer Interaction · Computer Science 2025-04-22 Nir Cafri

Brain-computer interfaces (BCIs) often suffer from limited robustness and poor long-term adaptability. Model performance rapidly degrades when user attention fluctuates, brain states shift over time, or irregular artifacts appear during…

Signal Processing · Electrical Eng. & Systems 2025-11-12 Yeon-Woo Choi , Hye-Bin Shin , Dan Li

Age of Information (AoI) is a newly appeared concept and metric to characterize the freshness of data. In this work, we study the delay and AoI in a multiple access channel (MAC) with two source nodes transmitting different types of data to…

Information Theory · Computer Science 2019-03-13 Zheng Chen , Nikolaos Pappas , Emil Björnson , Erik G. Larsson

Virtual reality finds various applications in productivity, entertainment, and training scenarios requiring working memory and attentional resources. Working memory relies on prioritizing relevant information and suppressing irrelevant…

Human-Computer Interaction · Computer Science 2024-12-31 Francesco Chiossi , Changkun Ou , Carolina Gerhardt , Felix Putze , Sven Mayer

For many years now, understanding the brain mechanism has been a great research subject in many different fields. Brain signal processing and especially electroencephalogram (EEG) has recently known a growing interest both in academia and…

Neurons and Cognition · Quantitative Biology 2022-04-18 Victor Delvigne , Hazem Wannous , Jean-Philippe Vandeborre , Laurence Ris , Thierry Dutoit

Deep learning algorithms for predicting neuroimaging data have shown considerable promise in various applications. Prior work has demonstrated that deep learning models that take advantage of the data's 3D structure can outperform standard…

Image and Video Processing · Electrical Eng. & Systems 2023-03-07 Yuda Bi , Anees Abrol , Zening Fu , Jiayu Chen , Jingyu Liu , Vince Calhoun

Visual imagery is an intuitive brain-computer interface paradigm, referring to the emergence of the visual scene. Despite its convenience, analysis of its intrinsic characteristics is limited. In this study, we demonstrate the effect of…

Human-Computer Interaction · Computer Science 2020-02-28 Seo-Hyun Lee , Minji Lee , Seong-Whan Lee

Brain responses related to working memory originate from distinct brain areas and oscillate at different frequencies. EEG signals with high temporal correlation can effectively capture these responses. Therefore, estimating the functional…

Machine Learning · Computer Science 2024-05-01 Harshini Gangapuram , Vidya Manian