Where can I find other example ontologies?
There are a number of different formal ontologies written in languages other than SHOE. We provide pointers to some of those that are available on the Web. Ontolingua Server This service provided by the Knowledge Systems Laboratory at Stanford provides a number of ontologies contributed by various users. Ontosaurus This ontology browser from USC’s Information Sciences Institute provides a number of ontologies written in the Loom knowledge representation language. WebOnto A Java-based ontology browser from the Knowledge Media Institute that contains many ontologies. Cyc Upper Ontology Cyc is the most famous (or infamous) ontology project, with the amibitious goal of encoding the entirety of common sense. Although Cycorp charges for full access to their knowledge base, they provide the upper-level for free. This upper-level is very comprehensive, but can be confusing even to so-called “ontologists.” Generalized Upper Model A general task and domain independent “linguistically motivated o