The Suggested Upper Merged Ontology (SUMO) - Ontology Portal
The Suggested Upper Merged Ontology (SUMO) and its domain ontologies form the largest formal public ontology in existence today. They are being used for research and applications in search, linguistics and reasoning. SUMO is the only formal ontology that has been mapped to all of the WordNet lexicon. SUMO is written in the SUO-KIF language. SUMO is free and owned by the IEEE. The ontologies that extend SUMO are available under GNU General Public License. Adam Pease is the Technical Editor of SUMO. Find an English word and its corresponding formal term in SUMO: English Word: Noun Verb Features Mappings to all of WordNet Language generation templates for Hindi, Chinese, Italian, German, Czech and English Tools for browsing, editing, inferencing and NLP with SUMO are found in the SigmaKEE (source, api, docker image), SUMOjEdit(source) and SigmaNLP (source, api, docker image) systems Largest free, formal ontology available, with ~25,000 terms and ~80,000 axioms when all domain
Explore this link on the map →