CS External Advisory Board


Robert L. Constable heads the Nuprl research group in automated reasoning and software verification, and joined the Cornell faculty in 1968. He is known for his work connecting programs and mathematical proofs, which has led to new ways of automating the production of reliable software. Professor Constable is a graduate of Princeton University where he worked with Alonzo Church, one of the pioneers of computer science. Professor Constable stepped down as the Dean of the Faculty of Computing and Information Science at Cornell University, serving from 1999 – 2009. CIS is a college-level unit created to advance Cornell’s academic and research initiative in computing and information science.
Susan B. Davidson received the B.A. degree in Mathematics from CornellUniversity in 1978, and the M.A. and Ph.D. degrees in Electrical Engineering and Computer Science from Princeton University in 1980 and 1982. Dr. Davidson is the Weiss Professor of Computer and Information Science (CIS) at the University of Pennsylvania, where she has been since 1982, and currently serves as Chair of the board of the Computing Research Association. Dr. Davidson’s research interests include database and web-based systems, scientific data management, provenance, crowdsourcing, and data citation.
Peter A. Freeman is Emeritus Dean and Professor at Georgia Tech where he was Founding Dean of the College of Computing in 1990.  He was Assistant Director of the National Science Foundation, heading the Computer and Information Science and Engineering (CISE) Directorate, from 2002-2007. In addition to Georgia Tech, he has held faculty appointments at Carnegie-Mellon; The University of California, Irvine; George Mason; and Johns Hopkins. He currently is co-PI on an NSF grant to develop and analyze the history of CISE. He also engages in a variety of pro bono writing and speaking activities, serves on several advisory boards, and provides strategic and operational guidance for organizations involved in research, education, and development. He lives in Washington, DC.
  Jacob Green is a technology entrepreneur, based in Baltimore MD. He is a partner in SpreadConcepts LLC, a boutique consulting firm which develops advanced, research-based technology to address real-world problems in distributed systems and networking. He is one of the founding technical team members of LTN Global Communications where he currently serves as Director of Engineering. He co-founded D-fusion an early business intelligence web crawling firm. He holds BS (’99) and MS (’00) degrees from Johns Hopkins University Computer Science, as well as BA (’99) in Physics.
  Eric Horvitz is a technical fellow and director of the Microsoft Research lab on Microsoft’s main campus. His efforts and collaborations have led to fielded systems in the areas of online services, healthcare, transportation, ecommerce, operating systems, and aerospace. He received the Feigenbaum Prize and the ACM‐AAAI Allen Newell Prize for his contributions to artificial intelligence. He has been elected fellow of AAAI, ACM, and the National Academy of Engineering (NAE). He is co‐chair of the Partnership on AI to Benefit People and Society, recently announced by Amazon, Facebook, Google, IBM, and Microsoft. Eric did his doctoral work at Stanford University.


Jim Jagielski, ’83, is a Senior Director in the Tech Fellows Program at Capital One. At Capital One, he leads their Open Source and InnerSource processes and strategies. He also serves on the Board of Directors of the Apache Software Foundation, which he co-founded, and has continually served as a director since its inception. He has previously also served as President and Chairman of the ASF. Jim has also served on the board of other foundations such as the Open Source Initiative and OuterCurve. An acknowledge visionary on matters of the Web, Cloud, IT and Open Source, he is a frequent speaker and has won numerous awards and accolades for his knowledge and involvement.


  Tom Longstaff is a Program Manager and Principal Cybersecurity Strategist for the Asymmetric Operations Sector of the Applied Physics Laboratory (APL).Tom joined APL in 2007 to work with a wide variety of infocentric operations projects on behalf of the US Government to include nuclear command and control, automated incident response, technology transition of cyber R&D, information assurance, intelligence, and global information networks. He is the chair of the Computer Science, Cybersecurity, and Information Systems Engineering Programs within the Whiting School at JHU. Tom received his BA in Physics and Mathematics at Boston University in 1983, his Masters in Applied Science in 1986, and his Ph.D. in Computer Science in 1991 from UC Davis.
  Cristina Nita-Rotaru co-directs the Network and Distributed Systems Security Lab  and is a founding member of the Cybersecurity and Privacy Institute at Northeastern University. Prior to joining Northeastern University in 2015, she was a faculty member at Purdue University (2003-2015), where she was also an Assistant Director for the Center for Research and Education in Information Assurance and Security (2011-2013). Professor Nita-Rotaru is the recipient of several awards for her work in dependable and secure network protocols in distributed systems.  She is a member of the Steering Committee for ACM Wireless Security Conference and the IEEE/IFIP Dependable Systems and Networks Conference.  Professor Nita-Rotaru is a graduate of Johns Hopkins University, Ph.D (2003).
Rafail Ostrovsky is a Professor of Computer Science and Mathematics at UCLA.
Cleve Pasarell, ’04, is VP of Product Development at Livingly Media, a company he joined pre-launch eleven years ago. A software engineer at heart, he tries his best to stay on top of the latest trends in the field and is currently studying data science and machine learning. When he can, Cleve contributes his spare time to Hopkins and co-chairs the Student and Faculty Engagement subcommittee in the Hopkins Engineering Alumni Leadership Committee. A Bay Area native, he currently resides in San Francisco with his wife, Jenny.
  Joe Pistritto is a SRE Engineering Director in the San Francisco office where he is the Site Lead. He manages teams running the base infrastructure for Google’s services including setup and teardown of cluster software infrastructure. Before that he worked in global infrastructure planning at Google and was VP of Engineering at several Bay Area startups as well as at Oracle in his life before Google. Joe is a graduate of Johns Hopkins University in Baltimore, Maryland with a BS and MS in Electrical Engineering.
  Noah Presler is an Associate Product Manager at Google/Alphabet Inc. He co-founded and co-created Semester.ly, a platform that makes college more collaborative and stress free by bringing technology to difficult areas like course registration. It is used regularly by thousands of students at the Johns Hopkins University. Noah graduated from the Whiting School of Engineering in 2017 with a Bachelors of Science in Computer Science and minors in both Applied Mathematics & Statistics and Entrepreneurship & Management. He hopes to combine these diverse subject areas to create impactful technologies that improve people’s lives at scale.
  Krishan Sabnani is a Research VP at Bell Labs responsible for research on NFV and web communications. Previously he was the VP of Networking Research from Jan. 2000 to Sept. 2013.  Upon his graduation from Columbia University in 1981, he joined Bell Labs, Murray Hill, New Jersey as a Member of Technical Staff and was promoted to Department Head in 1993.  He was named VP of Networking Research in 2000.  He is also an Adjunct Professor at Columbia University and an honorary professor at IIT Delhi.  Krishan is an ACM Fellow, an IEEE Fellow, and a Bell Labs Fellow. Krishan has received the 2005 IEEE Sumner Award and the 2005 IEEE McDowell Award.
  Gary Siegel is the Executive Vice President, Delivery and Operations at FAST Technology, a Policy Administration Software Company, operating across the Life insurance Industry. He is responsible for Customer and Product Delivery and is committed to making each and every FAST Implementation a success in the eyes of our customers. A hands‐on leader, Gary holds a patent and has won a number of Quality and Innovation Awards. A 1988 Graduate of Johns Hopkins, with a Master’s Degree in Computer Science and a Bachelor’s Degree in Computer Engineering.
  Jim Williams is the CEO of Siemens Molecular Imaging and is based in Knoxville, TN. Prior to that he was seven years in Germany with Siemens responsible for interventional X‐ray imaging. He received his Ph.D. from JHU in 1998, working in the field of medical imaging and his undergraduate and masters degrees from Rice University.



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