Hi Linked Data Tools One difficulty might arise because ContentHub has the index and the facets in lucene only and other metadata in an RDF graph. So for example if contenthub provides a facet "Paris" you only have the label without any association to the URI, so it won't be possible to get additional properties of the resource. This is way in the fusepool project we've chosen to build a store that stores all the data in an RDF graph and builds a lucene index on top of it. The code is here https://github.com/fusepool/fusepool-ecs, its apache licensed and btw. fusepool would be happy to donate it to the stanbol project.
Cheers, Reto On Mon, Nov 10, 2014 at 7:54 PM, <cont...@linkeddatatools.com> wrote: > Hi, I posted a similar message to the IKS mailing list, but understand > from the response that this mailing list is no longer administrated. > > Stanbol is a great tool and I'm having some success with it; particularly > the entity extractor tool. > > I have a requirement and, I am not sure the best way to approach this and > whether a best practice for this sort of problem has already been > established. > > I have an RDF graph - one in accordance with the FOAF ontology - and I > have a controlled vocabulary in the form of a SKOS RDF graph, which > contains a set of literal string terms and their semantic equivalents (e.g. > 'President' <-> 'Managing Director' <-> 'Chief Executive' <-> 'MD' <-> > etc.). > > I would like to search the literal strings in the FOAF graph for the > occurrence of the string literals, and their equivalents as defined by the > SKOS thesaurus. > > I can suggest one approach to this problem, but I fear it may be quite > inefficient and take a long time, namely: > > - Query the RDF graph using SPARQL for all string literals. > - Pass each string literal to the Stanbol Entity Extractor, having > uploaded the SKOS thesaurus to the Stanbol Entity Hub. > > Now this seems quite a long winded. Further, I'm not even clear from the > documentation whether the Stanbol Entity Extractor is capable of using SKOS > vocabularies to map string literals to entities. Is Stanbol capable of > extracting entities using a SKOS vocabulary? > > This seems a fairly common thing to do (semantic search of an RDF graph > using a thesaurus) - is there some better way of solving this problem using > an already established strategy? > > > Many thanks! > > Linked Data Tools >
