Inconsistencies In The LOD Cloud
By admin • May 17th, 2009 • Category: Rss NewsI was just trying to figure out how many inconsistent statements were caused by the use of owl:sameAs in the LOD cloud, by running some queries on the LOD SPARQL endpoint powered by OpenLink Virtuoso . I then ran a simple owl:sameAs / owl:disjointWith query that unfortunately timeout-ed: SELECT DISTINCT ?a ?b WHERE { ?a a ?c1 . ?b a ?c2 . ?c1 owl:disjointWith ?c2 . ?a owl:sameAs ?b . } I then restricted the experiment to foaf:Person and foaf:Document, and found about 20 resources instanciated with both classes, which is obviously inconsistent since they are disjoint in FOAF . …
More: continues here
Technorati Tags: bot
Sphere: Related Content
admin is
Email this author | All posts by admin












