An accelerated EM algorithm for mixture models with uncertainty for rating data
R Simone - Computational Statistics, 2021 - Springer
The paper is framed within the literature around Louis' identity for the observed information
matrix in incomplete data problems, with a focus on the implied acceleration of maximum …
matrix in incomplete data problems, with a focus on the implied acceleration of maximum …
A mixture model for ordinal variables measured on semantic differential scales
M Manisera, P Zuccolotto - Econometrics and Statistics, 2022 - Elsevier
Subjective perceptions and attitudes are usually measured by administering questionnaires
with ordered response scales. Among them, a particular case are semantic differential …
with ordered response scales. Among them, a particular case are semantic differential …
Fitting mixture models for feeling and uncertainty for rating data analysis
In this article, we present the command cub, which fits ordinal rating data using combination
of uniform and binomial (CUB) models, a class of finite mixture distributions accounting for …
of uniform and binomial (CUB) models, a class of finite mixture distributions accounting for …
Rejoinder to the discussion of “The class of cub models: statistical foundations, inferential issues and empirical evidence”
The paper is the rejoinder to a series of Discussions on the class of cub models for rating
data. The main topics advanced by Discussants are reviewed and debated, with focus on …
data. The main topics advanced by Discussants are reviewed and debated, with focus on …
A Mixture Model for the Analysis of Categorical Variables Measured on Five-point Semantic Differential Scales
M Manisera, M Migliorati, M Ventura… - Austrian Journal of …, 2024 - ajs.or.at
Ordered response scales are often used in questionnaires to measure individuals' attitudes
or perceptions. Among different response scale formats, we focus on multi-point semantic …
or perceptions. Among different response scale formats, we focus on multi-point semantic …
A likelihood ratio test of a homoscedastic multivariate normal mixture against a heteroscedastic multivariate normal mixture
The multivariate finite normal mixture model is one of the most commonly used tools to
analyze a heterogeneous data. When using the multivariate finite normal mixture model, one …
analyze a heterogeneous data. When using the multivariate finite normal mixture model, one …
Two‐part models for repeatedly measured ordinal data with “don't know” category
Ordinal data (eg,“low,”“medium,”“high”; graded response on a Likert scale) with an
additional “don't know” category are frequently encountered in the medical, social, and …
additional “don't know” category are frequently encountered in the medical, social, and …