Results 11 to 20 of about 254,793 (285)

Frailty trajectory among community-dwelling middle-aged and older adults in Korea: evidence from the Korean Longitudinal Study of Aging

open access: yesBMC Geriatrics, 2022
Background There is no study on the frailty trajectory including both middle-aged and older people, and the understanding of the long-term frailty trajectory is insufficient.
Ah Ram Jang, Hae Sagong, Ju Young Yoon
doaj   +1 more source

Latent Class-Conditional Noise Model

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2023
Learning with noisy labels has become imperative in the Big Data era, which saves expensive human labors on accurate annotations. Previous noise-transition-based methods have achieved theoretically-grounded performance under the Class-Conditional Noise model (CCN).
Jiangchao Yao   +4 more
openaire   +3 more sources

The Q-Matrix Anchored Mixture Rasch Model

open access: yesFrontiers in Psychology, 2021
Mixture item response theory (IRT) models include a mixture of latent subpopulations such that there are qualitative differences between subgroups but within each subpopulation the measure model based on a continuous latent variable holds.
Ming-Chi Tseng, Wen-Chung Wang
doaj   +1 more source

Exploring Class Enumeration in Bayesian Growth Mixture Modeling Based on Conditional Medians

open access: yesFrontiers in Education, 2021
Growth mixture modeling is a popular analytic tool for longitudinal data analysis. It detects latent groups based on the shapes of growth trajectories.
Seohyun Kim, Xin Tong, Zijun Ke
doaj   +1 more source

Development of Social Skills in Kindergarten: A Latent Class Growth Modeling Approach

open access: yesChildren, 2021
Social skills acquired during early childhood are often the foundation for success later in life. Using a nationwide survey dataset in Japan, this study aims to explore the multiple growth trajectories of social skills among children in kindergarten by ...
Yan-Tong Zhu   +10 more
doaj   +1 more source

What methods are used to study the association between medication adherence trajectories, estimated with the group-based trajectory modeling (GBTM) method, and health-related outcomes?—a protocol for a systematic review

open access: yesSystematic Reviews, 2022
Background The group-based trajectory modeling (GBTM) method is increasingly used in pharmacoepidemiologic studies to describe medication adherence trajectories over time.
Victoria Memoli   +5 more
doaj   +1 more source

Bayesian Latent Class Analysis: Sample Size, Model Size, and Classification Precision

open access: yesMathematics, 2023
The current literature includes limited information on the classification precision of Bayes estimation for latent class analysis (BLCA). (1) Objectives: The present study compared BLCA with the robust maximum likelihood (MLR) procedure, which is the ...
Diana Mindrila
doaj   +1 more source

Evidence of associations between cytokine genes and subjective reports of sleep disturbance in oncology patients and their family caregivers. [PDF]

open access: yesPLoS ONE, 2012
The purposes of this study were to identify distinct latent classes of individuals based on subjective reports of sleep disturbance; to examine differences in demographic, clinical, and symptom characteristics between the latent classes; and to evaluate ...
Christine Miaskowski   +12 more
doaj   +1 more source

Spotlight the Negatives: A Generalized Discriminative Latent Model [PDF]

open access: yes, 2015
Discriminative latent variable models (LVM) are frequently applied to various visual recognition tasks. In these systems the latent (hidden) variables provide a formalism for modeling structured variation of visual features.
Arefiyan, Mostafa   +3 more
core   +1 more source

Latent Class Probabilistic Latent Feature Analysis of Three-Way Three-Mode Binary Data

open access: yesJournal of Statistical Software, 2018
The analysis of binary three-way data (i.e., persons who indicate which attributes apply to each of a set of objects) may be of interest in several substantive domains as sensory profiling, marketing research or personality assessment.
Michel Meulders, Philippe De Bruecker
doaj   +1 more source

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