Are there any software or tools for Ontology and WordNet development?
There are many. A good place to start is: http://wordnet.princeton.edu/wordnet/related-projects/ . It has many examples. Just to name several randomly:
- The Suggested Upper Merged Ontology (SUMO) is an ontology specified in first order logic. SUMO mappings to WordNet 3.0 are available. Email Adam Pease for more information.
- Paul Buitelaar, of DFKI-Language Technology in Germany, has developed CoreLex, an ontology and semantic database of 126 underspecified semantic types, covering around 40,000 nouns. CoreLex defines a large number of systematic polysemous classes, derived by a careful, semi-automatic analysis of sense distributions in WordNet.
- A Resource Description Framework (RDF) representation of WordNet and ontology defining the terms used to represent the RDF version were developed by Sergey Melnik and Stefan Decker [email].