Research Interests
Artificial intelligence, semantic web technologies, natural language processing, knowledge and database systems, applications involving cybersecurity, social media, mobile and pervasive computing
Education
Ph.D. in Computer Science, University of Illinois, 1980. dissertation: The Semantic Interpretation of Compound Nominals (advisor: D. L. Waltz)
M.S. in Computer Science, University of Illinois, 1977. thesis: An Interpreter and Compiler for Augmented Transition Networks (advisor: D. L. Waltz)
S.B. in Electrical Engineering, Massachusetts Institute of Technology, 1971. thesis: Three Problems in Analyzing Scenes (advisor: P. H. Winston)
Employment
1991- Professor of Computer Science and Electrical Engineering, University of Maryland, Baltimore County
2017- Willard and Lillian Hackerman Chair in Engineering
2007- Affiliate Scientist, JHU Human Language Technology Center of Excellence
2014-2015 JHU Human Language Technology Center of Excellence (sabbatical leave)
2007-2008 JHU APL and Human Language Technology Center of Excellence (sabbatical leave)
1999-2002 Director, UMBC Institute for Global Electronic Commerce
1991-1995 Chair, UMBC Department of Computer Science
1987-91 Technical Director, Knowledge Based Information Processing, Unisys Center for Advanced Information Technology, Paoli PA
1987-91 Adjunct Associate Professor, Computer and Information Science, University of Pennsylvania
1980-87 Assistant Professor of Computer and Information Science, University of Pennsylvania
1974-80 Research Assistant, Research Associate, Coordinated Science Laboratory, Univ. of Illinois, Urbana-Champaign
1977 Visiting Research Staff, Computer Science Department, IBM. Research Laboratory, San Jose
1971-74 Research Staff, Artificial Intelligence Laboratory, MIT
1970 Research Assistant, The Cambridge Project, MIT
Awards and Honors