Representation of database record subjects (a/k/a keys, IDs, entities), predicates (a/k/a columns, attributes), and objects (a/k/a values) as triples, where the first two are always URIs, and the third is either a URI or a literal; enabling humans and machines to more easily share, merge, and evaluate data from heterogeneous origins.
When a person posts a link on Facebook, Facebook automatically finds a photo to be used as a thumbnail that …
facebook semantic-web semantic-markupI'm looking to use SPARQL for a relatively basic task: Given a FOAF graph, I'd like to parse the elements …
rdf semantic-web sparql rdfs foafIn ANSI SQL, you can write something like: Select * From DBTable Where DBTable.Description LIKE "MEET" or Select * From DBTable …
sql sparql semantic-webWhat is the best approach? What are the algorithms used? What are their strengths and weaknesses? Why do current movie …
algorithm machine-learning semantic-web recommendation-engine collective-intelligenceI am adding few new DataType in the OWL using Protege. The DataType is like percentage and I want to …
rdf semantic-web owl protege custom-data-typeIn SPARQL we can do something like this select * where { ?s (_:prop1 | _:prop2) "some_val" . ... #use ?s in other patterns ?…
rdf sparql semantic-webWhat references offer a good summary/tutorial for using RDF/OWL? There seem to be enough tools (Protege, Topbraid, Jena, …
rdf web-standards semantic-web owlI am modelling university data using an OWL ontology with relevant classes, object properties, etc. I have the university data …
rdf data-modeling semantic-web owl ontologyI was unable to find some decent simple code examples of using SWRL and Jena with Pellet, or at least …
jena semantic-web pellet swrlYou can run the query below at the Linked MDB SPARQL Explorer. The values of ?imdbID (the last variable) contains …
rdf sparql semantic-web linked-data linkedmdb