Computer Science Department, University of Central Florida, Orlando, 32816, Florida, USA. sraj@cs.ucf.edu.|School of Computing, University of Utah, Salt Lake City, Utah, USA.|Computer Science Department, University of Central Florida, Orlando, 32816, Florida, USA.|Computer Science Department, University of Central Florida, Orlando, 32816, Florida, USA.|Computer Science Department, University of Central Florida, Orlando, 32816, Florida, USA.|Computer Science Department, University of Central Florida, Orlando, 32816, Florida, USA.|Computer Science Department, University of Central Florida, Orlando, 32816, Florida, USA.|Department of Pathology, Florida Hospital, Orlando, Florida, USA.|Computer Science Department, University of Central Florida, Orlando, 32816, Florida, USA.