Hi, everyone,

I am an AI scientist at the MITRE AI Center in Northern Virginia
( and the technical coordinator for knowledge
representation and engineering, involved in projects on context-based
semantic interoperability, ontology modeling of complex decision-making,
conceptual information retrieval, semantic markup, and semantic
mapping/brokering.  I was recently Director of Ontological Engineering
at, a department I formed to create ontologies in the
product and service space to support Business-to-Business e-commerce.

My PhD is in theoretical linguistics with a concentration in formal
semantics from the University of Texas-Austin. I have worked nearly 20
years in computational linguistics, knowledge representation, and in the
last seven years in ontological engineering. 

I participate as a member of the IEEE Standard Upper Ontology working
group and am currently the assistant technical editor for one proposed
standard upper ontology candidate, the Information Flow Framework
( In addition I participate in the OntoWeb network

My general research interests include formal models, the semantics and
pragmatics of natural language, ontology representation and reasoning,
and category theory. I am currently most interested in the formalization
of context for ontology mapping and integration, and semantic mapping

Airport/location and other info:

<apt:Airport rdf:about="">
  <apt:name>Washington Dc, Washington Dulles International Airport, VA,
United States </apt:name>

<org:member rdf:parseType="Resource">
            <fullName>Leo Obrst</fullName>
            <mailbox rdf:resource=""/>

Dr. Leo Obrst		The MITRE Corporation Intelligent Information Management/Exploitation
Voice: 703-883-6770	7515 Colshire Drive, M/S W640
Fax: 703-883-1379       McLean, VA 22102-7508, USA

Received on Thursday, 8 November 2001 22:07:09 UTC