User:Leo Obrst

Dr. Leo Obrst is principal artificial intelligence scientist in the Information Discovery and Understanding department of MITRE’s (www.mitre.org) Command and Control Center, where he created and led, but now advises the Information Semantics group (semantics, ontological engineering, knowledge representation/reasoning). Leo has been involved in many projects using ontologies, automated reasoning, Semantic Web technologies, logic programming, formal logic, and computational semantics: for semantic search and information retrieval, business-to-business electronic commerce, command and control, intelligence, cyberspace security, information integration, event analysis, etc. Leo’s PhD is in theoretical linguistics from the University of Texas – Austin, with concentration in formal semantics. He has worked over 28 years in computational linguistics, knowledge representation, and in the past 17 years in ontological engineering and more recently in Semantic Web technologies. Leo was director of the first commercial ontology department (VerticalNet.com) in 1999. He is a founding member of the Executive Council of the International Association for Ontology and its Applications (http://www.iaoa.org/), co-founder in 2002 of the open community of practice Ontolog Forum (http://ontolog.cim3.net), was a member of the W3C Web Ontology Working Group (http://www.w3.org/2001/sw/WebOnt/) that developed the Web Ontology Language OWL, 2002-2004, is co-organizer of the Open Ontology Repository effort (http://ontolog.cim3.net/cgi-bin/wiki.pl?OpenOntologyRepository), annual Ontology Summits, and the Semantic Technologies for Intelligence, Defense, and Security conference (http://stids.c4i.gmu.edu/). In addition, Leo has taught tutorials on ontologies and semantics at the MITRE Institute, at many conferences, and for the Accelerated Master’s Degree Program in Systems Engineering at the University of Virginia. Leo is the author/editor of 45+ refereed publications, including co-author (with Mike Daconta and Kevin Smith) of the book The Semantic Web: The Future of XML, Web Services, and Knowledge Management. John Wiley, Inc., June, 2003. More recently, he co-edited (with Terry Janssen and Werner Ceusters) Ontologies and Semantic Technologies for Intelligence. IOS Press book series: Volume 213, Frontiers in Artificial Intelligence and Applications, August, 2010. See: http://ontolog.cim3.net/cgi-bin/wiki.pl?LeoObrst.