Global Trends and Predictors of Face Mask Usage During the COVID-19 Pandemic

no code implementations • 21 Dec 2020 • Elena Badillo-Goicoechea, Ting-Hsuan Chang, Esther Kim, Sarah LaRocca, Katherine Morris, Xiaoyi Deng, Samantha Chiu, Adrianne Bradford, Andres Garcia, Christoph Kern, Curtiss Cobb, Frauke Kreuter, Elizabeth A. Stuart

Methods: We examined a total of 13, 723, 810 responses to a daily cross-sectional representative online survey in 38 countries who completed from April 23, 2020 to October 31, 2020 and reported having been in public at least once during the last seven days.

Applications

Asymmetric Clusters and Outliers: Mixtures of Multivariate Contaminated Shifted Asymmetric Laplace Distributions

no code implementations • 26 Feb 2014 • Katherine Morris, Antonio Punzo, Paul D. McNicholas, Ryan P. Browne

Mixtures of multivariate contaminated shifted asymmetric Laplace distributions are developed for handling asymmetric clusters in the presence of outliers (also referred to as bad points herein).

Clustering, Classification, Discriminant Analysis, and Dimension Reduction via Generalized Hyperbolic Mixtures

no code implementations • 28 Aug 2013 • Katherine Morris, Paul D. McNicholas

This mixture model-based approach is based on fitting generalized hyperbolic mixtures on a reduced subspace within the paradigm of model-based clustering, classification, or discriminant analysis.

Clustering Dimensionality Reduction +1