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Showing 1-20 of 2,052 results
  1. A copula formulation for multivariate latent Markov models

    We specify a general formulation for multivariate latent Markov models for panel data, where outcomes are possibly of mixed-type (categorical,...

    Alfonso Russo, Alessio Farcomeni in TEST
    Article Open access 07 February 2024
  2. Hidden Markov models for longitudinal rating data with dynamic response styles

    This work deals with the analysis of longitudinal ordinal responses. The novelty of the proposed approach is in modeling simultaneously the temporal...

    Roberto Colombi, Sabrina Giordano, Maria Kateri in Statistical Methods & Applications
    Article Open access 28 September 2023
  3. Bayesian Latent Gaussian Models

    Bayesian latent Gaussian models are Bayesian hierarchical models that assign Gaussian prior densities to the latent parameters. In this chapter, we...
    Birgir Hrafnkelsson, Haakon Bakka in Statistical Modeling Using Bayesian Latent Gaussian Models
    Chapter 2023
  4. The Mixed Latent Markov Chain Model

    A discussion of dynamic latent class analysis in a framework of the latent Markov chain model is made, following Chap. 5...
    Chapter 2022
  5. Bayesian Hidden Markov Models for Early Warning

    We show how Bayesian hidden Markov models may be employed to build early warning systems of particular risky events. The adopted model formulation...
    Daniele Tancini, Francesco Bartolucci, Silvia Pandolfi in Developments in Statistical Modelling
    Conference paper 2024
  6. Variable Selection for Hidden Markov Models with Continuous Variables and Missing Data

    We propose a variable selection method for multivariate hidden Markov models with continuous responses that are partially or completely missing at a...

    Fulvia Pennoni, Francesco Bartolucci, Silvia Pandolfi in Journal of Classification
    Article Open access 23 January 2024
  7. The Latent Markov Chain Model

    The latent Markov chain model is discussed, and the relationship between the model and the latent class model is considered. An ML estimation...
    Chapter 2022
  8. Latent Dirichlet Allocation and Hidden Markov Models to Identify Public Perception of Sustainability in Social Media Data

    To help guide a just transition to a sustainable society and onboard the local communities, researchers can identify events of public interest...
    Luigi Cao Pinna, Claire Miller, Marian Scott in Developments in Statistical Modelling
    Conference paper 2024
  9. Regularized Latent Trajectory Models for Spatio-temporal Population Dynamics

    Climate change impacts ecosystems variably in space and time. Landscape features may confer resistance against environmental stressors, whose...

    **nyi Lu, Yoichiro Kanno, ... Mevin B. Hooten in Journal of Agricultural, Biological and Environmental Statistics
    Article 01 April 2024
  10. Markov switching stereotype logit models for longitudinal ordinal data affected by unobserved heterogeneity in responding behavior

    When asked to assess their opinion about attitudes or perceptions on Likert-scale, respondents often endorse the midpoint or extremes of the scale...

    Roberto Colombi, Sabrina Giordano in AStA Advances in Statistical Analysis
    Article Open access 15 May 2024
  11. Tempered expectation-maximization algorithm for the estimation of discrete latent variable models

    Maximum likelihood estimation of discrete latent variable (DLV) models is usually performed by the expectation-maximization (EM) algorithm. A...

    Luca Brusa, Francesco Bartolucci, Fulvia Pennoni in Computational Statistics
    Article Open access 07 October 2022
  12. An expectation maximization algorithm for the hidden markov models with multiparameter student-t observations

    Hidden Markov models are a class of probabilistic graphical models used to describe the evolution of a sequence of unknown variables from a set of...

    Emna Ghorbel, Mahdi Louati in Computational Statistics
    Article 06 December 2023
  13. Matrix-Variate Hidden Markov Regression Models: Fixed and Random Covariates

    Two families of matrix-variate hidden Markov regression models (MV-HMRMs) are here introduced. The distinction between them relies on the role of the...

    Salvatore D. Tomarchio, Antonio Punzo, Antonello Maruotti in Journal of Classification
    Article 12 June 2023
  14. Path Analysis in Latent Class Models

    The present chapter applies an entropy-based method of path analysis to multiple-indicator, multiple-cause models and the latent Markov chain model....
    Chapter 2022
  15. Model-based two-way clustering of second-level units in ordinal multilevel latent Markov models

    In this paper, an ordinal multilevel latent Markov model based on separate random effects is proposed. In detail, two distinct second-level discrete...

    Giorgio Eduardo Montanari, Marco Doretti, Maria Francesca Marino in Advances in Data Analysis and Classification
    Article Open access 15 June 2021
  16. Hidden Markov Models

    This chapter introduces hidden Markov models (HMMs), which can be viewed as an extension of mixture models, in which a unit of observation (e.g., a...
    Ingmar Visser, Maarten Speekenbrink in Mixture and Hidden Markov Models with R
    Chapter 2022
  17. Identifiability of latent-variable and structural-equation models: from linear to nonlinear

    An old problem in multivariate statistics is that linear Gaussian models are often unidentifiable. In factor analysis, an orthogonal rotation of the...

    Aapo Hyvärinen, Ilyes Khemakhem, Ricardo Monti in Annals of the Institute of Statistical Mathematics
    Article 04 November 2023
  18. hhsmm: an R package for hidden hybrid Markov/semi-Markov models

    This paper introduces the hhsmm R package, which involves functions for initializing, fitting, and predication of hidden hybrid Markov/semi-Markov...

    Morteza Amini, Afarin Bayat, Reza Salehian in Computational Statistics
    Article 08 July 2022
  19. Hidden Markov and Semi-Markov Models When and Why are These Models Useful for Classifying States in Time Series Data?

    Hidden Markov models (HMMs) and their extensions have proven to be powerful tools for classification of observations that stem from systems with...

    Sofia Ruiz-Suarez, Vianey Leos-Barajas, Juan Manuel Morales in Journal of Agricultural, Biological and Environmental Statistics
    Article 17 January 2022
  20. An Introduction to Latent Class Analysis Methods and Applications

    This book provides methods and applications of latent class analysis, and the following topics are taken up in the focus of discussion: basic latent...

    Book 2022
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