F Xue, A Qu - Journal of the American Statistical Association, 2021 - Taylor & Francis
For multisource data, blocks of variable information from certain sources are likely missing. Existing methods for handling missing data do not take structures of block-wise missing data …
Abstract Introduction Clinical Alzheimer's disease (AD) begins with mild cognitive impairment (MCI) and progresses to mild, moderate, or severe dementia, constituting a …
K Kang, D Pan, X Song - Statistics in Medicine, 2022 - Wiley Online Library
Alzheimer's disease (AD) is an incurable and progressive disease that starts from mild cognitive impairment and deteriorates over time. Examining the effects of patients' …
Y Lin, X Song - Journal of Multivariate Analysis, 2022 - Elsevier
Abstract Hidden Markov models (HMMs) describe the relationship between two stochastic processes: an observed process and an unobservable finite-state transition process. Owing …
Y He, X Song, K Kang - The Annals of Applied Statistics, 2024 - projecteuclid.org
Joint mixed membership modeling of multivariate longitudinal and survival data for learning the individualized disease progressi Page 1 The Annals of Applied Statistics 2024, Vol. 18 …
X Zhou, X Song - Statistics and Computing, 2023 - Springer
This study considers a functional concurrent hidden Markov model. The proposed model consists of two components. One is a transition model for elucidating how potential …
H Liu, X Song - Econometrics and Statistics, 2021 - Elsevier
Abstract Hidden Markov models (HMMs) are widely used to analyze heterogeneous longitudinal data owing to their capability to model dynamic heterogeneity. Early …
This paper presents a Bayesian adaptive group least absolute shrinkage and selection operator method to conduct simultaneous model selection and estimation under …
J Zhou, X Song, L Sun - Journal of Multivariate Analysis, 2020 - Elsevier
Abstract Hidden Markov models (HMMs) describe the relationship between two stochastic processes, namely, an observed outcome process and an unobservable finite-state …