Problem of the Week
Hilton Memorial Lecture
Department of Mathematical Sciences
|DATE:||Thursday, October 21, 2021|
|TIME:||1:15pm – 2:15pm|
|SPEAKER:||Baozhen Wang, Binghamton University|
|TITLE:||Covariate Shift by Kernel Mean Matching|
Given sets of observations of training and test data, the authors consider the problem of re-weighting the training data such that its distribution more closely matches that of the test data. They achieve this goal by matching covariate distributions between training and test sets in a high dimensional feature space (specifically, a reproducing kernel Hilbert space). This approach does not require distribution estimation. Instead, the sample weights are obtained by a simple quadratic programming procedure.