3 papers
math.ST2026
Consistency of Graphical Model-based Clustering: Robust Clustering using Bayesian Spanning Forest
Yu Zheng, Leo L. Duan, Arkaprava Roy
Mixture model-based frameworks are very popular for statistical inference in clustering. While convenient for producing probabilistic estimates of cluster assignments and uncertain…
stat.ME2026
Statistical Modeling of Combinatorial Response Data
Yu Zheng, Malay Ghosh, Leo Duan
There is a rich literature for modeling binary and polychotomous responses. However, existing methods are inadequate for handling combinatorial responses, where each response is an…
stat.ME2024
Gibbs Sampling using Anti-correlation Gaussian Data Augmentation, with Applications to L1-ball-type Models
Yu Zheng, Leo L. Duan
L1-ball-type priors are a recent generalization of the spike-and-slab priors. By transforming a continuous precursor distribution to the L1-ball boundary, it induces exact zeros wi…