[HTML][HTML] Spectral dependence

H Ombao, M Pinto - Econometrics and Statistics, 2024 - Elsevier
A general framework for modeling dependence in multivariate time series is presented. Its
fundamental approach relies on decomposing each signal inside a system into various …

Regularized matrix data clustering and its application to image analysis

X Gao, W Shen, L Zhang, J Hu, NJ Fortin… - …, 2021 - academic.oup.com
We propose a novel regularized mixture model for clustering matrix-valued data. The
proposed method assumes a separable covariance structure for each cluster and imposes a …

Classification of EEG-based effective brain connectivity in schizophrenia using deep neural networks

CR Phang, CM Ting, SB Samdin… - 2019 9th International …, 2019 - ieeexplore.ieee.org
Disrupted functional connectivity patterns have been increasingly used as features in pattern
recognition algorithms to discriminate neuropsychiatric patients from healthy subjects. Deep …

Brain waves analysis via a non-parametric Bayesian mixture of autoregressive kernels

G Granados-Garcia, M Fiecas, S Babak… - … statistics & data analysis, 2022 - Elsevier
The standard approach to analyzing brain electrical activity is to examine the spectral
density function (SDF) and identify frequency bands, defined a priori, that have the most …

Conex–Connect: Learning patterns in extremal brain connectivity from MultiChannel EEG data

MB Guerrero, R Huser, H Ombao - The Annals of Applied …, 2023 - projecteuclid.org
We provide further details for each stage of the Conex–Connect method to model the
conditional extremal dependence on brain connectivity. In this supplement, we discuss the …

Matrix linear discriminant analysis

W Hu, W Shen, H Zhou, D Kong - Technometrics, 2020 - Taylor & Francis
We propose a novel linear discriminant analysis (LDA) approach for the classification of high-
dimensional matrix-valued data that commonly arises from imaging studies. Motivated by the …

The statistical analysis of acoustic phonetic data: exploring differences between spoken Romance languages

D Pigoli, PZ Hadjipantelis, JS Coleman… - Journal of the Royal …, 2018 - academic.oup.com
The historical and geographical spread from older to more modern languages has long
been studied by examining textual changes and in terms of changes in phonetic …

Covariate‐adjusted region‐referenced generalized functional linear model for EEG data

AW Scheffler, D Telesca, CA Sugar, S Jeste… - Statistics in …, 2019 - Wiley Online Library
Electroencephalography (EEG) studies produce region‐referenced functional data in the
form of EEG signals recorded across electrodes on the scalp. It is of clinical interest to relate …

Coherence-based time series clustering for statistical inference and visualization of brain connectivity

C Euan, Y Sun, H Ombao - The Annals of Applied Statistics, 2019 - JSTOR
We develop the hierarchical cluster coherence (HCC) method for brain signals, a procedure
for characterizing connectivity in a network by clustering nodes or groups of channels that …

Nonparametric matrix response regression with application to brain imaging data analysis

W Hu, T Pan, D Kong, W Shen - Biometrics, 2021 - academic.oup.com
With the rapid growth of neuroimaging technologies, a great effort has been dedicated
recently to investigate the dynamic changes in brain activity. Examples include time course …