BYU

Abstract by Jeremy Meyer

Personal Infomation


Presenter's Name

Jeremy Meyer

Degree Level

Masters

Abstract Infomation


Department

Statistics

Faculty Advisor

Richard Warr
David Dahl

Title

The Attraction Indian Buffet Distribution

Abstract

Latent feature models have been used to model many problems with a high number of predictor variables and few observations. The Indian Buffet process (IBP) is a popular Bayesian nonparametric prior for a latent feature allocation. This prior assumes exchangeability, however there are cases where it is practical to use prior distance information among observations for better results. We propose the attraction Indian Buffet distribution (AIBD), a generalization of the IBP that allows pairwise similarities to influence the sharing of features a priori.  We explore the properties of the AIBD and suggest ways the AIBD can leverage the pairwise distance information for improved feature allocation estimation.