3 papers
stat.ME2026
Bayesian Nonparametric Longitudinal Factor Model for Microbiome Counts
Shuangjie Zhang, Seoyeon Ok, Arul Jayaraman +4
Longitudinal microbiome studies provide important insights into the temporal evolution of microbial abundances and dynamic cross-feature dependence. Modeling longitudinal microbiom…
math.PR2019
Extinction scenarios in evolutionary processes: A Multinomial Wright-Fisher approach
Alexander Roitershtein, Reza Rastegar, Robert S. Chapkin +1
We study a generalized discrete-time multi-type Wright-Fisher population process. The mean-field dynamics of the stochastic process is induced by a general replicator difference eq…
stat.AP2011
Feature selection for high-dimensional integrated data
Charles Zheng, Scott Schwartz, Robert Chapkin +2
Motivated by the problem of identifying correlations between genes or features of two related biological systems, we propose a model of \emph{feature selection} in which only a sub…