See also:

• Reference: Knowledge Management: Knowledge Discovery  (182)
• Science: Social Sciences: Linguistics: Semantics  (42)

• Action Theory Contraction and Minimal Change - Article by Ivan José Varzinczak, postdoc researcher in artifical intelligence at universities in France and South Africa, building on Propositional Dynamic Logic. [PDF]
• Conceptual Graphs Home Page - Features introductory material and bibliography, standard notation, events, projects, tools and researchers.
• John Sowa on Knowledge Representation - Provides background material and tutorials on ontology and related topics in logic, conceptual graphs, and natural language semantics.
• Knowledge Interchange Format (KIF) - A DARPA project. KIF is a language designed for use in the interchange of knowledge among disparate computer systems.
• Knowledge Representation Resources - A list of knowledge representation resources, part of the AI Education Repository at the University of Southwestern Louisiana.
• KR, Inc. - Charitable organization concerned with fostering research and communication on knowledge representation and reasoning. Features conferences, educational materials and mailing lists.
• Tockit Project - Aims to create a framework for conceptual knowledge processing in terms of social structures and a common code base. Features software description and contact details.
• WebKB - A set of tools using Conceptual Graphs formalism for building and documentation of knowledge bases, indexing or connecting elements of WWW-accessible documents.