1. Duke University, Department of Computer Science, Levine Science Research Center, 308 Research Drive, Durham, NC 27708, USA
2. Intel Corporation, Chandler, AZ 85226, USA
3. Duke University, Department of Computer Science - Akamai Technologies, Levine Science Research Center, 308 Research Drive, Durham, NC 27708, USA
4. Arizona State University, School of Computing, Informatics, and Decision Systems Engineering, Box 878809, Tempe, AZ 85287, USA
5. Carnegie Mellon University, CyLab, Robert Mehrabian Collaborative Innovation Center, 4720 Forbes Avenue, Pittsburgh, PA 15213, USA