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PTI Leadership

Craig Stewart

Craig Stewart

Executive Director, Pervasive Technology Institute
Associate Dean, Research Technologies
Dr. Stewart's CV

As Executive Director of PTI, Dr. Stewart coordinates much of the "delivery and support" portion of PTI's "Research, development, delivery, and support" roles. He coordinates the PTI Service and Cyberinfrastructure and their services to PTI research centers and the community at large, as well as many PTI-related activities in economic development. Stewart serves as Associate Dean or Research Technologies at Indiana University, and is responsible for IU's activities in high performance computing, advanced storage, advanced visualization, and IT infrastructure for the life sciences. He is principal investigator for NSF grants to Indiana University for the National Center for Genome Analysis Support and IU's participation in XSEDE - the eXtreme Science and Engineering Discovery Environment. as a resource provider in the NSF-funded TeraGrid. Stewart has worked in computing at Indiana University since 1985. A Ph.D. biologist, Stewart has published in the areas of grid computing, high performance computing, computing for the life sciences, quality and accountability in information technology services, and thermal physiology and natural history of mammals.

Beth Plale

Beth A. Plale

Managing Director, Pervasive Technology Institute
Director, Data to Insight Center
Professor of Computer Science, School of Informatics and Computing
Director, Center for Data and Search Informatics

Professor Beth Plale serves as Managing Director for PTI. As such, she convenes the PTI Research Center Leadership Council (composed of two representatives of each of the four Research Centers), and coordinates the research mission of PTI. Dr. Plale has set a very simple mission for the four research centers of PTI: excellence in research.

Dr. Plale is Director of the Data to Insight Center and professor of Computer Science and Informatics. Plale is a national leader in data and information management and serves on leadership teams of several major grant funded projects. Plale leads the Hathi Trust Research Center funded by the Sloan foundation, and is the IU PI for the Sustainable Environment-Actionable Data (SEAD) project, funded by the NSF's DataNet program. SEAD will develop tools and services for active curation and long term preservation of scientific data, while also engaging researchers through social networking tools. She is a Faculty advisor to the Indiana University Office of Women's Affairs Women in Science Program and for the Midwest Crossroads Alliance for Graduate Education and the Professoriate. She co-founded Women in Computing @IU (WIC@IU) in 2001. Dr. Plale received a PhD in Computer Science in 1998 and an MBA in 1986. She is a recipient of the prestigious DOE Early Career Award and has authored or co-authored over 65 publications.

Von Welch

Von Welch


Von Welch is the director of Indiana University’s Center for Applied Cybersecurity Research (CACR). He specializes in cybersecurity for distributed systems, particularly scientific collaborations and federated identity. Current roles include PI and director for the Center for Trustworthy Scientific Cyberinfrastructure, a project dedicated to helping NSF science projects with their cybersecurity needs, and CSO of the Software Assurance Market Place, a DHS-funded facility to foster software assurance and software assurance research. Previously he has worked with a range of high-visibility projects to provide cybersecurity to the broader scientific and engineering community, including TeraGrid, Open Science Grid, Ocean Observatory Infrastructure, and GENI. His work in software and standards includes authoring two IETF RFCS and the development of several security systems for distributed computing including CILogon and MyProxy.

Geoffrey C. Fox

Geoffrey C. Fox

Director, Digital Science Center,
Associate Dean for Research and Graduate Studies, IU Bloomington School of Informatics and Computing

Ph.D. , Cambridge University (Theoretical Physics), 1967

Geoffrey Fox received a Ph.D. in Theoretical Physics from Cambridge University and is now professor of Informatics and Computing, and Physics at Indiana University where he is director of the Digital Science Center and Associate Dean for Research and Graduate Studies at the School of Informatics and Computing.  He previously held positions at Caltech, Syracuse University and Florida State University. He has supervised the PhD of 62 students and published over 600 papers in physics and computer science. He currently works in applying computer science to Bioinformatics, Defense, Earthquake and Ice-sheet Science, Particle Physics and Chemical Informatics. He is principal investigator of FutureGrid – a new facility to enable development of new approaches to computing. He is involved in several projects to enhance the capabilities of Minority Serving Institutions. 

phone: 812-219-4643




Bill Barnett

William K. Barnett, Ph.D.

National Center for Genome Analysis

William Barnett serves as Director of the National Center for Genome Analysis Support (NCGAS), and also serves in several other roles (Director,Science Community Tools; Associate Director of the Center for Advanced Cybersecurity Research;Director of Information Architectures for the Indiana Clinical and Translational Science Institute). In addition to his experience in information technologies for the life sciences, Barnett also has experience in digital libraries, multimedia technologies and has worked in both museum and nonprofit environments. Before coming to IU, Barnett was Deputy Director of the Fresno Metropolitan Museum in California and Vice President and CIO at the Field Museum in Chicago, Illinois. Barnett holds degrees from the College of William and Mary, and Boston University.