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Showing 61-80 of 1,530 results
  1. Identifiability of Gaussian linear structural equation models with homogeneous and heterogeneous error variances

    In this work, we consider the identifiability assumption of Gaussian linear structural equation models (SEMs) in which each variable is determined by...

    Gunwoong Park, Youngwhan Kim in Journal of the Korean Statistical Society
    Article 01 January 2020
  2. Penalized Latent Dirichlet Allocation Model in Single-Cell RNA Sequencing

    Single-cell RNA sequencing (scRNA-seq) quantifies RNA transcripts at individual cell level, providing cellular-level resolution of gene expression...

    **aotian Wu, Hao Wu, Zhi** Wu in Statistics in Biosciences
    Article 25 March 2021
  3. Extensions of the Classical Linear Model

    This chapter discusses several extensions of the classical linear model. We first describe the general linear model and its applications in Sect. 4.1.
    Ludwig Fahrmeir, Thomas Kneib, ... Brian D. Marx in Regression
    Chapter 2021
  4. A breakpoint detection in the mean model with heterogeneous variance on fixed time intervals

    This work is motivated by an application for the homogenization of global navigation satellite system (GNSS)-derived integrated water vapour series....

    Olivier Bock, Xavier Collilieux, ... Claire Pascal in Statistics and Computing
    Article 03 May 2019
  5. A bivariate finite mixture growth model with selection

    A model is proposed to analyze longitudinal data where two response variables are available, one of which is a binary indicator of selection and the...

    David Aristei, Silvia Bacci, ... Silvia Pandolfi in Advances in Data Analysis and Classification
    Article Open access 29 December 2020
  6. Local Signal Detection for Categorical Time Series

    Frequency domain signal detection for qualitative-valued time series was developed under the assumption of homogeneity using the concept of the...
    Chapter 2023
  7. Discovery Among Binary Biomarkers in Heterogeneous Populations

    Biomarkers have great potential to improve disease diagnosis and treatment. Disease may arise via multiple pathways, however, each associated with...
    Junxian Geng, Elizabeth H. Slate in Statistical Modeling in Biomedical Research
    Chapter 2020
  8. Duality Between the Local Score of One Sequence and Constrained Hidden Markov Model

    We are interested here in a theoretical and practical approach for detecting atypical segments in a multi-state sequence. We prove in this article...

    Sabine Mercier, Grégory Nuel in Methodology and Computing in Applied Probability
    Article 10 May 2021
  9. Variable selection of higher-order partially linear spatial autoregressive model with a diverging number of parameters

    In this paper, we consider problem of variable selection in higher-order partially linear spatial autoregressive model with a diverging number of...

    Tizheng Li, **aojuan Kang in Statistical Papers
    Article 27 May 2021
  10. Information measures and design issues in the study of mortality deceleration: findings for the gamma-Gompertz model

    Mortality deceleration, or the slowing down of death rates at old ages, has been repeatedly investigated, but empirical studies of this phenomenon...

    Marie Böhnstedt, Jutta Gampe, Hein Putter in Lifetime Data Analysis
    Article Open access 25 February 2021
  11. Local Spectral Analysis of Qualitative Sequences via Minimum Description Length

    The idea of signal detection in the frequency domain for qualitative-valued time series was developed in Stoffer et al. (Biometrika 80(3):611–622,...
    Chapter 2023
  12. A Component Multiplicative Error Model for Realized Volatility Measures

    We propose a component Multiplicative Error Model (MEM) for modelling and forecasting realized volatility measures. In contrast to conventional MEMs,...
    Antonio Naimoli, Giuseppe Storti in Nonparametric Statistics
    Conference paper 2020
  13. Model-Based Clustering

    This chapter deals with the model-based approach to clustering based on a probability model, specifically the Finite Mixture Model (FMM). Within such...
    Paolo Giordani, Maria Brigida Ferraro, Francesca Martella in An Introduction to Clustering with R
    Chapter 2020
  14. Person Parameter Estimation for IRT Models of Forced-Choice Data: Merits and Perils of Pseudo-Likelihood Approaches

    The Thurstonian IRT model for forced-choice data (Brown A, Maydeu-Olivares A, Educ Psychol Measur 71:460–502, 2011) capitalizes on including...
    Safir Yousfi in Quantitative Psychology
    Conference paper 2020
  15. Robust estimation and variable selection in heteroscedastic regression model using least favorable distribution

    The assumption of equal variances is not always appropriate and different approaches for modelling variance heterogeneity have been widely studied in...

    Yeşim Güney, Yetkin Tuaç, ... Olcay Arslan in Computational Statistics
    Article 30 October 2020
  16. Better than the best? Answers via model ensemble in density-based clustering

    With the recent growth in data availability and complexity, and the associated outburst of elaborate modelling approaches, model selection tools have...

    Alessandro Casa, Luca Scrucca, Giovanna Menardi in Advances in Data Analysis and Classification
    Article Open access 02 October 2020
  17. Detecting possibly frequent change-points: Wild Binary Segmentation 2 and steepest-drop model selection—rejoinder

    Many existing procedures for detecting multiple change-points in data sequences fail in frequent-change-point scenarios. This article proposes a new...

    Article Open access 16 September 2020
  18. A new approach to modeling the cure rate in the presence of interval censored data

    We consider interval censored data with a cured subgroup that arises from longitudinal followup studies with a heterogeneous population where a...

    Suvra Pal, Yingwei Peng, Wisdom Aselisewine in Computational Statistics
    Article 15 July 2023
  19. Optimal dichotomization of bimodal Gaussian mixtures

    Despite criticism for loss of information and power, dichotomization of variables is still frequently used in social, behavioral, and medical...

    Yan-ni Jhan, Wan-cen Li, ... Iebin Lian in Statistical Papers
    Article Open access 02 January 2024
  20. A Unified Approach to Hierarchical Random Measures

    Hierarchical models enjoy great popularity due to their ability to handle heterogeneous groups of observations by leveraging on their underlying...

    Marta Catalano, Claudio Del Sole, ... Igor Prünster in Sankhya A
    Article Open access 08 November 2023
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