Prior to working at Yahoo!, Brachman worked at
DARPA as the Director of the
Information Processing Techniques Office (IPTO), one of DARPA's eight offices at the time. While at IPTO, he helped develop
DARPA's Cognitive Systems research efforts. Before that, he worked at
AT&T Bell Laboratories (
Murray Hill, New Jersey) as the Head of the
Artificial Intelligence Principles Research Department (2004) and Director of the Software and Systems Research Laboratory. When AT&T split with
Lucent in 1996, he became Communications Services Research Vice President and was one of the founders of
AT&T Labs. He is considered by some to be the godfather of
description logic, the logic-based
knowledge representation formalism underlying the
Web Ontology Language OWL. He was elected a Fellow of the
Association for the Advancement of Artificial Intelligence in 1990. He was a resident of
Westfield, New Jersey. ==Publications==