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SUMO - Suggested Upper Merged Ontology |
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In the process of managing information bottom-up, you might end up with lots of various structures. Starting out with definitions, a thesaurus can be formed, with various relations existing inside, a taxonomy. Structuring taxonomies and their relations (by then a time factor is incorporated), you're building a full metamodel, and enter the domain of ontologies. Looking at top-down approaches you could ask: Does a highest level ontology exist, and if so what does it look like?
I don't know.
But what I do know is there exist various attempts to create useful ontologies.
After getting interested in information management, searching, pattern recognition, categorising, rating, I stumbled upon a conference called the Upper Ontology Summit Meeting (March 15, 2006), check out the audio recording [mp3] and presentations there.
Adam Pease represented SUMO, the Suggested Upper Merged Ontology. Together with its domain ontologies, they form a large public ontology, being used for research, search, linguistics and reasoning. Quoted from ontologyportal.org:
"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."
Visit ontologyportal.org for more SUMO information.
There's a nice web interface for the SUMO knowledge base,
Sigma Knowledge Engineering Environment, where you can try many functions and discover its potential.
And Wikipedia has nice info on OWL, W3C's Web Ontology Language (and some more).
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