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stat.ME2026
Structure Learning for Directed Trees with Zero-Inflated Compositional Nodes
Shuangjie Zhang, Bani K. Mallick, Yang Ni
Compositional data, which are vectors of proportions constrained to the probability simplex, arise frequently in modern scientific applications, including microbiome relative abund…
stat.ME2026
Nested Atoms Model with Application to Clustering Big Population-Scale Single-Cell Data
Arhit Chakrabarti, Yang Ni, Yuchao Jiang +1
We consider the problem of clustering nested or hierarchical data, where observations are grouped and there are both group-level and observation-level variables. In our motivating…
stat.ME2017
A Conditional Density Estimation Partition Model Using Logistic Gaussian Processes
Richard D. Payne, Nilabja Guha, Yu Ding +1
Conditional density estimation (density regression) estimates the distribution of a response variable y conditional on covariates x. Utilizing a partition model framework, a condit…