1. Department of Computer Science, University of Virginia, Hanover, NH, USA
2. Bosch Research and Technology Center, Pittsburgh, PA, USA
3. Department of Computer Science, University of Virginia, Charlottesville, VA, USA
4. Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA
5. Departments of Anesthesiology and Neurosurgery, and the Center for Advanced Medical Analytics, University of Virginia School of Medicine; MIT Critical Data, Laboratory for Computational Physiology, Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, Charlottesville, VA, USA