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The problem of jointly analysing functional connectomics and behavioral data is extremely challenging owing to the complex interactions between the two domains. In addition, clinical rs-fMRI studies often have to contend with limited…

Machine Learning · Computer Science 2023-01-18 Niharika Shimona D'Souza

Motivated by modern observational studies, we introduce a class of functional models that expands nested and crossed designs. These models account for the natural inheritance of correlation structure from sampling design in studies where…

Applications · Statistics 2013-04-26 Haochang Shou , Vadim Zipunnikov , Ciprian M. Crainiceanu , Sonja Greven

Traditionally, the neuronal dynamics underlying electroencephalograms (EEG) have been understood as arising from \textit{rhythmic oscillators with varying degrees of synchronization}. This dominant metaphor employs frequency domain EEG…

Neurons and Cognition · Quantitative Biology 2023-03-15 Javier Díaz , Hiroyasu Ando , GoEun Han , Olga Malyshevskaya , Xifang Hayashi , Juan-Carlos Letelier , Masashi Yanagisawa , Kaspar E. Vogt

Functional MRI is a neuroimaging technique that analyzes the functional activity of the brain by measuring blood-oxygen-level-dependent signals throughout the brain. The derived functional features can be used for investigating brain…

Neurons and Cognition · Quantitative Biology 2026-02-16 Giorgio Dolci , Silvia Saglia , Lorenza Brusini , Vince D. Calhoun , Ilaria Boscolo Galazzo , Gloria Menegaz

We propose a mixed deep neural network strategy, incorporating parallel combination of Convolutional (CNN) and Recurrent Neural Networks (RNN), cascaded with deep autoencoders and fully connected layers towards automatic identification of…

Machine Learning · Computer Science 2019-04-10 Pramit Saha , Sidney Fels

Functional data often exhibit both amplitude and phase variation around a common base shape, with phase variation represented by a so called warping function. The process removing phase variation by curve alignment and inference of the…

Methodology · Statistics 2018-06-26 Eric Fu , Nancy Heckman

Electroencephalography (EEG) classification techniques have been widely studied for human behavior and emotion recognition tasks. But it is still a challenging issue since the data may vary from subject to subject, may change over time for…

Signal Processing · Electrical Eng. & Systems 2020-09-14 Dashan Gao , Ce Ju , Xiguang Wei , Yang Liu , Tianjian Chen , Qiang Yang

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

In this paper, we analyze electroencephalograms (EEG) which are recordings of brain electrical activity. We develop new clustering methods for identifying synchronized brain regions, where the EEGs show similar oscillations or waveforms…

Methodology · Statistics 2020-07-29 Tianbo Chen , Ying Sun , Carolina Euan , Hernando Ombao

We propose a construction for joint feature learning and clustering of multichannel extracellular electrophysiological data across multiple recording periods for action potential detection and discrimination ("spike sorting"). Our…

We investigate the nature of the modifications in the temporal dynamics manifested in the high-frequency EEG spectra of the normal human brain in comparison to the diseased brain undergoing epilepsy. For this purpose, the Fourier…

Chaotic Dynamics · Physics 2025-08-19 Jyotiraj Nath , Shreya Banerjee , Bhaswati Singha Deo , Mayukha Pal , Prasanta K. Panigrahi

Electrocardiogram (ECG) analysis plays a crucial role in diagnosing cardiovascular diseases, but accurate interpretation of these complex signals remains challenging. This paper introduces a novel multimodal framework(GAF-FusionNet) for ECG…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Jiahao Qin , Feng Liu

Objective. Arrhythmia classification from electrocardiograms (ECGs) suffers from high false positive rates and limited cross-dataset generalization, particularly for atrial fibrillation (AF) detection where specificity ranges from 0.72 to…

Machine Learning · Computer Science 2026-02-16 Tiezhi Wang , Wilhelm Haverkamp , Nils Strodthoff

The widespread application of Electronic Health Records (EHR) data in the medical field has led to early successes in disease risk prediction using deep learning methods. These methods typically require extensive data for training due to…

Machine Learning · Computer Science 2024-11-28 Shibo Li , Hengliang Cheng , Weihua Li

This study introduces a parameter-efficient Hierarchical Spatial Temporal Network (HiSTN) specifically designed for the task of emotion classification using multi-channel electroencephalogram data. The network incorporates a graph hierarchy…

Signal Processing · Electrical Eng. & Systems 2024-08-29 Dongyang Kuang , Xinyue Song , Craig Michoski

Understanding the spatiotemporal dynamics of disease progression in relation to transcriptomic profiles provides key insights into complex conditions such as Alzheimer disease. To enable such investigations, STARmap PLUS technology offers…

Applications · Statistics 2026-04-28 Zitian Wu , Susmita Datta , Arkaprava Roy

The problem of estimating trend and seasonal variation in time-series data has been studied over several decades, although mostly using single time series. This paper studies the problem of estimating these components from functional data,…

Applications · Statistics 2017-04-25 Liang-Hsuan Tai , Anuj Srivastava , Kyle A. Gallivan

EEG signals capture brain activity with high temporal and low spatial resolution, supporting applications such as neurological diagnosis, cognitive monitoring, and brain-computer interfaces. However, effective analysis is hindered by…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Amirabbas Hojjati , Lu Li , Ibrahim Hameed , Anis Yazidi , Pedro G. Lind , Rabindra Khadka

In this paper we have demonstrated a complete framework for the analysis of microarray time series data. The unique characteristics of microarry data lend themselves well to a functional data analysis approach and we have shown how this…

Methodology · Statistics 2011-12-09 Maurice Berk , Giovanni Montana

Multimodal federated learning in real-world settings often encounters incomplete and heterogeneous data across clients. This results in misaligned local feature representations that limit the effectiveness of model aggregation. Unlike prior…

Machine Learning · Computer Science 2025-10-28 Duong M. Nguyen , Trong Nghia Hoang , Thanh Trung Huynh , Quoc Viet Hung Nguyen , Phi Le Nguyen