Multivariate functional mixed model with MRI data: An application to Alzheimer's disease
Sign Up to like & getrecommendations! Published in 2023 at "Statistics in Medicine"
DOI: 10.1002/sim.9683
Abstract: Alzheimer's Disease (AD) is the leading cause of dementia and impairment in various domains. Recent AD studies, (ie, Alzheimer's Disease Neuroimaging Initiative (ADNI) study), collect multimodal data, including longitudinal neurological assessments and magnetic resonance imaging… read more here.
Keywords: multivariate functional; alzheimer disease; mri; model ... See more keywords
Multivariate functional data clustering using adaptive density peak detection
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DOI: 10.1002/sim.9687
Abstract: Clustering for multivariate functional data is a challenging problem since the data are represented by a set of curves and functions belonging to an infinite‐dimensional space. In this article, we propose a novel clustering method… read more here.
Keywords: adaptive density; density; multivariate functional; functional data ... See more keywords
An adaptive multivariate functional EWMA control chart
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Quality Technology"
DOI: 10.1080/00224065.2024.2383674
Abstract: Abstract In many modern industrial scenarios, measurements of the quality characteristics of interest are often required to be represented as functional data or profiles. This motivates the growing interest in extending traditional univariate statistical process… read more here.
Keywords: quality; control; adaptive multivariate; control chart ... See more keywords
Tests for equality of several mean vector functions for multivariate functional data with applications
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Nonparametric Statistics"
DOI: 10.1080/10485252.2024.2396361
Abstract: In various scientific and technological fields, it is common to encounter multivariate functional data, where continuous vector functions for statistical units are observed over a specific interval. This paper aims to investigate the equality of… read more here.
Keywords: mean vector; vector functions; tests equality; multivariate functional ... See more keywords
Interpretable principal component analysis for multilevel multivariate functional data.
Sign Up to like & getrecommendations! Published in 2021 at "Biostatistics"
DOI: 10.1093/biostatistics/kxab018
Abstract: Many studies collect functional data from multiple subjects that have both multilevel and multivariate structures. An example of such data comes from popular neuroscience experiments where participants' brain activity is recorded using modalities such as… read more here.
Keywords: interpretable principal; multivariate functional; multilevel multivariate; brain ... See more keywords
Cross‐component registration for multivariate functional data, with application to growth curves
Sign Up to like & getrecommendations! Published in 2018 at "Biometrics"
DOI: 10.1111/biom.13340
Abstract: Multivariate functional data are becoming ubiquitous with advances in modern technology and are substantially more complex than univariate functional data. We propose and study a novel model for multivariate functional data where the component processes… read more here.
Keywords: cross component; methodology; multivariate functional; registration ... See more keywords