Results 31 to 40 of about 679,297 (329)

The impact of undergraduate students’ mathematics anxiety and self-concept on their self-regulated learning and academic achievement

open access: yesJurnal Elemen, 2023
Several types of research showed math anxiety as the learning outcome, but another showed that as the predictor variable. Math anxiety was predicted based on other variables, such as self-regulated learning and self-concept.
Dian Cahyawati   +2 more
doaj   +1 more source

Latent Variable Modelling: A Survey* [PDF]

open access: yesScandinavian Journal of Statistics, 2007
Abstract.  Latent variable modelling has gradually become an integral part of mainstream statistics and is currently used for a multitude of applications in different subject areas. Examples of ‘traditional’ latent variable models include latent class models, item–response models, common factor models, structural equation models, mixed or random ...
SKRONDAL, ANDERS, RABE‐HESKETH, SOPHIA
openaire   +4 more sources

Model Based Clustering for Mixed Data: clustMD [PDF]

open access: yes, 2015
A model based clustering procedure for data of mixed type, clustMD, is developed using a latent variable model. It is proposed that a latent variable, following a mixture of Gaussian distributions, generates the observed data of mixed type.
Gormley, Isobel Claire   +1 more
core   +3 more sources

A constrained latent variable model [PDF]

open access: yes2012 IEEE Conference on Computer Vision and Pattern Recognition, 2012
Latent variable models provide valuable compact representations for learning and inference in many computer vision tasks. However, most existing models cannot directly encode prior knowledge about the specific problem at hand. In this paper, we introduce a constrained latent variable model whose generated output inherently accounts for such knowledge ...
Varol Aydin   +3 more
openaire   +2 more sources

The Accuracy of Computerized Adaptive Testing in Heterogeneous Populations: A Mixture Item-Response Theory Analysis. [PDF]

open access: yesPLoS ONE, 2016
Computerized adaptive testing (CAT) utilizes latent variable measurement model parameters that are typically assumed to be equivalently applicable to all people. Biased latent variable scores may be obtained in samples that are heterogeneous with respect
Richard Sawatzky   +4 more
doaj   +1 more source

A new model of wheezing severity in young children using the validated ISAAC wheezing module: A latent variable approach with validation in independent cohorts. [PDF]

open access: yesPLoS ONE, 2018
BACKGROUND:The International Study of Asthma and Allergies in Children (ISAAC) Wheezing Module is commonly used to characterize pediatric asthma in epidemiological studies, including nearly all airway cohorts participating in the Environmental Influences
Steven M Brunwasser   +7 more
doaj   +1 more source

Alternating Direction Methods for Latent Variable Gaussian Graphical Model Selection [PDF]

open access: yes, 2012
Chandrasekaran, Parrilo and Willsky (2010) proposed a convex optimization problem to characterize graphical model selection in the presence of unobserved variables.
Ma, Shiqian, Xue, Lingzhou, Zou, Hui
core   +2 more sources

New approaches to cognitive work analysis through latent variable modeling in mining operations

open access: yesInternational Journal of Mining Science and Technology, 2019
This paper discusses the utilization of latent variable modeling related to occupational health and safety in the mining industry. Latent variable modeling, which is a statistical model that relates observable and latent variables, could be used to ...
S. Li, Y.A. Sari, M. Kumral
doaj   +1 more source

The Poisson-Lognormal Model as a Versatile Framework for the Joint Analysis of Species Abundances

open access: yesFrontiers in Ecology and Evolution, 2021
Joint Species Distribution Models (JSDM) provide a general multivariate framework to study the joint abundances of all species from a community. JSDM account for both structuring factors (environmental characteristics or gradients, such as habitat type ...
Julien Chiquet   +3 more
doaj   +1 more source

Isotone additive latent variable models [PDF]

open access: yesStatistics and Computing, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sardy, S, Victoria-Feser, MP
openaire   +4 more sources

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