HOME I received my Ph.D. in Machine Learning from the Computer Science Department at the University of Colorado at Boulder in December 2007. My current research focuses on learning over time with classifier ensembles via the use of a model library. My dissertation research focused on achieving long-term learning through ensembles of linear models; this was applied towards the unsolved problem of robot navigation in unstructured outdoor environments. I recently completed my Ph.D. Thesis, titled An Experimental Analysis of Classifier Ensembles for Learning Drifting Concepts Over Time in Autonomous Outdoor Robot Navigation. I am presently employed as a scientist at Sandia National Laboratories.