Seminar Details

Seminar Details


Apr 9

3:30 pm

Empirical Process Limits Under Model Misspecification

Hanna Jankowski


University of Washington - Department of Statistics

The understanding of the limiting behavior of empirical processes has found much application in a wide variety of problems in statistics. In particular, empirical processes are natural quantities to look at when studying the asymptotics of infinite-dimensional data.

In this talk, we consider two types of perturbations, both on the order of n^ {-1/2}. We show that neither perturbation affects the empirical law of large numbers. However, the first type of perturbation, which we call a perturbation in finitely many directions, causes a change in the mean of the central limit theorem. On the other hand, if we consider perturbations in infinitely many directions, we obtain a change in the variance. For the perturbations, we consider both real-valued and function-valued data.