Morgan Kaufmann, San Mateo, CA, 1991. Acknowledgements The research reported here has been supported by a grant from the U. K . J. Sowa, editor. Explorations in the Representation of Knowledge . Morgan Kaufmann, San Mateo, CA, 1991.
People think about the world in abstract concepts whichdescribe acomplex physical world.
Concepts , like road, building, etc. are very hard to define in a formal way which can be implemented as a computer program. Another aspect is the knowledge which has to be represented. Principles of Semantic Networks - Explorations in the Representation of Knowledge . The most important source of material on knowledge representation are the major AI journals, which include Artificial Intelligence and The AI Magazine. In addition Cognitive Science and Computational Intelligence regularly publish contributions to research in knowledge representation.