AbstractThe knowledge that data lies close to a particular submanifold of the ambient Euclidean space may be useful in a number of ways. For instance, one may want to automatically mark any point far away from the submanifold as an outlier, or to use its geodesic distance to measure similarity between points. Classical problems for manifold learning are often posed in a very high dimension, e.g...
Statistical SeminarOrganizer:Yunan Wu 吴宇楠 (YMSC)Speaker:Tao Wang 王涛上海交通大学Time:Fri., 9:30-10:30 am, Nov. 28, 2025Venue:C654, Shuangqing Complex Building ATitle: Factor Models for High-dimensional Count DataAbstract:This talk presents recent advances in factor modeling for multivariate count data. We propose a maximum variational likelihood approach for estimation and inference und...