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Erschienen in:
2010 | OriginalPaper | Buchkapitel
On the Saturation of YAGO
verfasst von : Martin Suda, Christoph Weidenbach, Patrick Wischnewski
Erschienen in: Automated Reasoning
Verlag: Springer Berlin Heidelberg
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YAGO is an automatically generated ontology out of Wikipedia and WordNet. It is eventually represented in a proprietary flat text file format and a core comprises 10 million facts and formulas. We present a translation of YAGO into the Bernays-Schönfinkel Horn class with equality. A new variant of the superposition calculus is sound, complete and terminating for this class. Together with extended term indexing data structures the new calculus is implemented in
Spass
-YAGO. YAGO can be finitely saturated by
Spass
-YAGO in about 1 hour. We have found 49 inconsistencies in the original generated ontology which we have fixed.
Spass
-YAGO can then prove non-trivial conjectures with respect to the resulting saturated and consistent clause set of about 1.4 GB in less than one second.