· Director of Human Language Technology program, Office of the Director of National Intelligence (ODNI)2005–2013
· Teacher, Boston University
· Founding Director of the Center for Research on Information Access, Columbia University
· Teacher, Columbia University
· Teacher, CUNY-Graduate Center
· Career Advisor / Consultant, Dr. Judith Klavans Consulting
· Teacher, Government training centers
· Research Scientist and Member of Technical Staff, IBM
· Post-doctoral study in Computer and Cognitive Science, Massachusetts Institute of Technology (MIT)
· Teacher, SUNY-Buffalo
· Ph.D. in Linguistics, University of London
· Teacher, University of London
· Director of Text, Tags and Trust group, University of Maryland
· Teacher, University of Maryland