Results 11 to 20 of about 17,167,783 (309)

Gaussian process latent class choice models

open access: yesTransportation Research Part C: Emerging Technologies, 2022
We present a Gaussian Process - Latent Class Choice Model (GP-LCCM) to integrate a non-parametric class of probabilistic machine learning within discrete choice models (DCMs). Gaussian Processes (GPs) are kernel-based algorithms that incorporate expert knowledge by assuming priors over latent functions rather than priors over parameters, which makes ...
Sfeir, Georges; id_orcid 0000-0002-5656-3780   +2 more
openaire   +5 more sources

Indicator Selection For Latent Class Models Using Constrained Model Fitting [PDF]

open access: yesThe Egyptian Statistical Journal, 2019
Whist considerable attention has been Paid to determining the number of classes in a latent class analysis less attention has directed at the optimal selection of indicator variables . Indicator selection reduces redundancy and complexity,and can provide
Brian Francis, Fuad A. A. Awwad
doaj   +1 more source

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

Class proportions and class-specific probabilities from a four-latent-class model of chronic conditions.

open access: yes, 2022
Class proportions and class-specific probabilities from a four-latent-class model of chronic conditions.
Katherine Keenan (543406)   +4 more
core   +1 more source

Measurement Invariance and Differential Item Functioning Across Gender Within a Latent Class Analysis Framework: Evidence From a High-Stakes Test for University Admission in Saudi Arabia

open access: yesFrontiers in Psychology, 2020
The main aim of the present study was to investigate the presence of Differential Item Functioning (DIF) using a latent class (LC) analysis approach. Particularly, we examined potential sources of DIF in relation to gender.
Ioannis Tsaousis   +3 more
doaj   +1 more source

Ridesourcing mode choice: A latent class choice model for UberX in Chile

open access: yesTransportation Research Interdisciplinary Perspectives, 2022
As shared mobility expands, ridesourcing has become its most popular manifestation. However, users’ mode choice has not yet been sufficiently explored. Thus, this study aims to model ridesourcing mode choice across different latent classes to ascertain ...
Gustavo García-Melero   +3 more
doaj   +1 more source

Latent class analysis variable selection [PDF]

open access: yes, 2009
We propose a method for selecting variables in latent class analysis, which is the most common model-based clustering method for discrete data. The method assesses a variable's usefulness for clustering by comparing two models, given the clustering ...
Nema Dean   +3 more
core   +1 more source

Neighborhoods and adolescent polysubstance use in Jamaica [PDF]

open access: yesPeerJ, 2023
Background The purpose of this study was to identify latent classes of polysubstance use among adolescents in Jamaica and the role of neighborhood factors in the association with polysubstance use class membership.
Amrita Gill   +8 more
doaj   +2 more sources

The Latent Class Model as a Measurement Model for Situational Judgment Tests

open access: yesPsychologica Belgica, 2011
In a situational judgment test, it is often debatable what constitutes a correct answer to a situation. There is currently a multitude of scoring procedures. Establishing a measurement model can guide the selection of a scoring rule.
Frank Rijmen
doaj   +1 more source

Effects of switching between production systems in dairy farming

open access: yesBio-based and Applied Economics, 2015
The increasing intensification of dairy farming in Europe has sparked an interest in studying the economic consequences of this process. However, empirically classifying farms as extensive or intensive is not a straightforward task.
Antonio Alvarez, Carlos Arias
doaj   +1 more source

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