- From: David Booth <david@dbooth.org>
- Date: Fri, 23 Sep 2016 10:44:49 -0400
- To: Kay Müller <kay.mueller@informatik.uni-leipzig.de>, semantic-web@w3.org
- Cc: Johannes Frey <frey@informatik.uni-leipzig.de>, Sebastian Hellmann <hellmann@informatik.uni-leipzig.de>
On 09/23/2016 10:07 AM, Kay Müller wrote: > Dear Sir/Madam, > > My name is Kay Mueller and I am a researcher at the University of > Leipzig. Currently we are planing to evaluate whether it is feasible to > store provenance and meta data for each triple in a graph, hence we are > wondering whether you are aware of any dataset which either stores data > at the triple level or which could be converted into this format (e.g. > Yago, Wikidata). The usual technique for associating provenance or other metadata with certain triples is to put those triples into a named graph, and make the provenance/metadata assertions about that named graph. A named graph can hold any number of triples, so it could hold a single triple if you want to be that fine grained. But triples are not usually created individually -- they are usually created in bunches -- so for efficiency one would usually create a named graph containing multiple triples that all have the same provenance. All major "triplestores" -- quad stores really -- and SPARQL servers support named graphs. David Booth > > We would be very grateful, if you could give us any pointers to > datasets, related work, etc. > > Thank you very much in advance. > -- > Kind regards / Mit freundlichem Gruß > > Kay Müller > > AKSW/KILT <http://aksw.org/Groups/KILT.html> > Office: InfAI e.V., Hainstr. 11, Room 101a, 04109 Leipzig, Germany > Homepage: http://aksw.org/KayMueller.html > My Twitter <https://twitter.com/mullekay> My LinkedIn > <https://de.linkedin.com/in/mullerkay> My Xing > <https://www.xing.com/profile/Kay_Mueller12> My GitHub > <https://github.com/mullekay> My Google Scholar > <https://scholar.google.de/citations?user=8tFijv0AAAAJ> > >
Received on Friday, 23 September 2016 14:45:29 UTC