Dr. Paul A. Navratil is Director of Visualization and a Research Scientist at the Texas Advanced Computing Center (TACC) at The University of Texas at Austin, where he leads research and resource provision for remote systems and local human-data interaction (HDI) environments. He is an expert in high-performance visualization technologies, accelerator-based computing and advanced rendering techniques. His research interests include efficient algorithms for large-scale parallel visualization and data analysis (VDA) and innovative design for large-scale VDA systems. Dr. Navratil’s recent work includes algorithms for large-scale distributed-memory ray tracing. This work enables photo-realistic rendering of the largest datasets produced on supercomputers today. Dr. Navratil's work has been featured in numerous venues, both nationally and internationally, including the New York Times, Discover, and PBS News Hour. He holds BS, MS and Ph.D. degrees in Computer Science and a BA in Plan II Honors, all from the University of Texas at Austin.