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<[email protected]>:
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
