Matrix-variate normal mean-variance Birnbaum–Saunders distributions and related mixture models
SD Tomarchio - Computational Statistics, 2024 - Springer
Matrix-variate data analysis has increasingly attracted interest in the statistical literature over
the recent years, especially in the model-based clustering framework. Here, we firstly …
the recent years, especially in the model-based clustering framework. Here, we firstly …
Parsimony and parameter estimation for mixtures of multivariate leptokurtic-normal distributions
Mixtures of multivariate leptokurtic-normal distributions have been recently introduced in the
clustering literature based on mixtures of elliptical heavy-tailed distributions. They have the …
clustering literature based on mixtures of elliptical heavy-tailed distributions. They have the …
Visual assessment of matrix‐variate normality
N Počuča, MPB Gallaugher, KM Clark… - Australian & New …, 2023 - Wiley Online Library
In recent years, the analysis of three‐way data has become ever more prevalent in the
literature. It is becoming increasingly common to analyse such data by means of matrix …
literature. It is becoming increasingly common to analyse such data by means of matrix …
Mixtures of regressions using matrix-variate heavy-tailed distributions
SD Tomarchio, MPB Gallaugher - Advances in Data Analysis and …, 2024 - Springer
Finite mixtures of regressions (FMRs) are powerful clustering devices used in many
regression-type analyses. Unfortunately, real data often present atypical observations that …
regression-type analyses. Unfortunately, real data often present atypical observations that …
Model-based clustering using a new multivariate skew distribution
Quite often real data exhibit non-normal features, such as asymmetry and heavy tails, and
present a latent group structure. In this paper, we first propose the multivariate skew shifted …
present a latent group structure. In this paper, we first propose the multivariate skew shifted …
Time Series Overlapping Clustering Based on Link Community Detection
Y Ghahremani, B Amiri - IEEE Access, 2024 - ieeexplore.ieee.org
Given the nature of time series and their vast applications, it is essential to find clustering
algorithms that depict their real-life properties. Among the features that can hugely effect the …
algorithms that depict their real-life properties. Among the features that can hugely effect the …
Flexible Clustering with a Sparse Mixture of Generalized Hyperbolic Distributions
AA Sochaniwsky, MPB Gallaugher, Y Tang… - Journal of …, 2024 - Springer
Robust clustering of high-dimensional data is an important topic because clusters in real
datasets are often heavy-tailed and/or asymmetric. Traditional approaches to model-based …
datasets are often heavy-tailed and/or asymmetric. Traditional approaches to model-based …
On simulating skewed and cluster-weighted data for studying performance of clustering algorithms
In this article, extensions to the recently introduced concept of pairwise overlap between
mixture components are proposed. The notion of overlap is useful for studying the …
mixture components are proposed. The notion of overlap is useful for studying the …
Cluster-weighted modeling with measurement error in covariates
S Zarei - Communications in Statistics-Theory and Methods, 2024 - Taylor & Francis
The cluster-weighted model (CWM) is a model-based clustering approach that utilizes a
mixture of regression models to cluster data points based on both a response variable Y and …
mixture of regression models to cluster data points based on both a response variable Y and …
HPV Related Genes Clustering Method Based on Weighted Feature Calculation
L Wang, PC Xu, T Li, TH Zhou, XT Jia… - Proceedings of the 2024 …, 2024 - dl.acm.org
The interaction between Human Papillomavirus (HPV) infection and genes play a crucial
role in the occurrence and development of HPV-related diseases. HPV-related genes were …
role in the occurrence and development of HPV-related diseases. HPV-related genes were …