- From: Martijn van der Plaat <martijn@profec.nl>
- Date: Wed, 8 Dec 2010 14:47:01 +0100
- To: Kingsley Idehen <kidehen@openlinksw.com>
- Cc: Semantic Web <semantic-web@w3.org>, public-lod@w3.org
Ok, Thank you Kingsley. As test I searched for a property to describe valuta (USD, Euro); select ?s1p as ?c1 count (*) as ?c2 where { ?s1 ?s1textp ?o1 . ?o1 bif:contains '"Valuta"' .?s1 a <http://www.w3.org/2000/01/rdf-schema#Property> . ?s1 ?s1p ?s1o . } group by ?s1p order by desc 2 limit 20 offset 0 Zero results unfortunately ;) But this says more about this particular property than this great service ? Greets, Martijn 2010/12/8 Kingsley Idehen <kidehen@openlinksw.com>: > On 12/8/10 5:52 AM, Martijn van der Plaat wrote: >> >> Thank you all for the detailed comments, but in my initial message I >> didn't mean a "formal list" from an organization like the W3C or other >> standardization bodies as some of you mentioned. I was just looking >> for an indexing service (API) where I can find properties and classes >> based on popularity with conservation of the decentralized approach of >> the Web. A concept is not popular due to standardization or applicable >> in every language and every domain perspective, but is popular because >> it simply works or because the popularity is caused by powerful >> organizations like Facebook,Google,etc who accepted these >> vocabularies/ontologies in their system. >> >> I think the API I talk about should be included into eg. ontology >> editors. I can imagine a simple string search possibility to find a >> popular ontology/property/class and easily reuse it into your own >> dataset? > > Here is one place to lookup Classes or Properties, with results that include > Entity Ranking. > > 1. http://lod.openlinksw.com -- which also has a SPARQL endpoint so you can > use bif:contains as part of query pattern > 2. http://lod.openlinksw.com/fct/facet.vsp?cmd=load&fsq_id=191140 -- Classes > associated with pattern: "Person" > 3. http://lod.openlinksw.com/fct/facet.vsp?cmd=load&fsq_id=191141 -- Classes > associated with pattern: "Music" > 4. > http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtuosoFacetsWebService > - DBMS hosted Faceted Browser Service APIs . > > > Kingsley >> >> Cheers, >> Martijn >> >> >> 2010/12/8 Martin Hepp<martin.hepp@ebusiness-unibw.org>: >>> >>> In general, I think that the Semantic Web must use a decentralized >>> approach >>> for the definition and adoption of conceptual elements, same as the Web >>> uses >>> decentralized, fault-tolerant approaches as a fundamental principle. So >>> calling for standardization bodies to maintain "authoritative" >>> vocabularies >>> will not work at Web Scale, IMO. At least, standards bodies may be to >>> slow >>> to provide ontologies and ontology updates (INCOTERMS, for instance, >>> updates >>> it's definition of trade terms only once per decade) >>> >>> A few related papers: >>> >>> 1. Possible Ontologies: How Reality Constrains the Development of >>> Relevant >>> Ontologies, in: IEEE Internet Computing, Vol. 11, No. 1, pp. 90-96, >>> Jan-Feb >>> 2007 >>> PDF: >>> http://www.heppnetz.de/files/IEEE-IC-PossibleOntologies-published.pdf >>> >>> 2. E-Business Vocabularies as a Moving Target: Quantifying the Conceptual >>> Dynamics in Domains, Proceedings of the 16th International Conference on >>> Knowledge Engineering and Knowledge Management (EKAW2008), September 29 - >>> October 3, 2008 (forthcoming), Acitrezza, Italy, Springer LNCS, Vol. >>> 5268, >>> pp. 388-403. >>> PDF: >>> http://www.heppnetz.de/files/ConceptualDynamics-EKAW2008-CRC-final6.pdf >>> >>> Best >>> Martin >>> >>> >> >> > > > -- > > Regards, > > Kingsley Idehen > President& CEO > OpenLink Software > Web: http://www.openlinksw.com > Weblog: http://www.openlinksw.com/blog/~kidehen > Twitter/Identi.ca: kidehen > > > > > >
Received on Wednesday, 8 December 2010 13:49:38 UTC