2 papers
math.OC2023
Stochastic Variance-Reduced Majorization-Minimization Algorithms
Duy-Nhat Phan, Sedi Bartz, Nilabja Guha +1
We study a class of nonconvex nonsmooth optimization problems in which the objective is a sum of two functions: One function is the average of a large number of differentiable func…
stat.ME2022
A Bayesian Survival Tree Partition Model Using Latent Gaussian Processes
Richard D. Payne, Nilabja Guha, Bani K. Mallick
Survival models are used to analyze time-to-event data in a variety of disciplines. Proportional hazard models provide interpretable parameter estimates, but proportional hazards a…