Ontolog Forum

Christopher A. Welty

Dr. Christopher A. Welty

Knowledge Structures Group

IBM Watson Research Center,

19 Skyline Dr.,

Hawthorne, NY 10532


Voice: +1 914.784.7055

IBM T/L: 863.7055

Fax: +1 914.784.7455



Chris Welty is a Research Scientist at the IBM T.J. Watson Research Center in New York. Previously, he taught Computer Science at Vassar College , taught at and received his Ph.D. from Rensselaer Polytechnic Institute , and accumulated over 14 years of teaching experience before moving to industrial research. Chris' principal area of research is Knowledge Representation, specifically ontologies and the semantic web, and he spends most of his time applying this technology to Information Retrieval and, in the past, Software Engineering. Dr. Welty serves on the steering committee of the Formal Ontology in Information Systems Conferences, as chair of the Knowledge Representation Conference , on the advisory board of IJCAI on the editorial boards of AI Magazine, The Journal of Applied Ontology, and The Journal of Web Semantics , was an editor in the W3C Web Ontology Working Group . Chris Welty's work on ontologies and ontology methodology has appeared in CACM , and numerous other publications.

Chris is the co-developer of the OntoClean methodology, with NicolaGuarino. He also chairs the Rule Interchange Format (RIF) Working Group at W3C.

Refer to the talks Dr. Welty gave the Ontolog Forum at:

  • "OntoClean" - ConferenceCall_2004_11_18
  • "Ontology Quality and the Semantic Web" - ConferenceCall_2006_10_19 ... and
  • "RIF: Rules Interchange Format" - ConferenceCall_2008_06_12
  • "OntologySummit2011: Grand Challenge - remarks, in the wake of the IBM Watson Jeopardy Machine" - ConferenceCall_2011_03_24