Community:Resource multiple attribution - Revision history

MichaelUschold at 02:30, 12 April 2010

2010-04-12T02:30:32Z

MichaelUschold at 02:23, 12 April 2010

2010-04-12T02:23:43Z

MichaelUschold: Community:GI Resource multiple attribution moved to Community:Resource multiple attribution: Remove confusing prefix.

2010-04-09T00:47:43Z

Community:GI Resource multiple attribution moved to Community:Resource multiple attribution: Remove confusing prefix.

MichaelUschold at 04:04, 2 April 2010

2010-04-02T04:04:20Z

EnricoDaga at 15:58, 3 March 2010

2010-03-03T15:58:04Z

MichaelUschold at 21:30, 25 February 2010

2010-02-25T21:30:47Z

MichaelUschold at 05:20, 22 February 2010

2010-02-22T05:20:58Z

MichaelUschold: New page: {{TitleDescription Template |Title=RDF Resource multiple attribution |Description=How to attribute a single resource with two values of the same property in one document }} {{Modeling Issu...

2010-02-22T05:19:05Z

New page: {{TitleDescription Template |Title=RDF Resource multiple attribution |Description=How to attribute a single resource with two values of the same property in one document }} {{Modeling Issu...

New page

{{TitleDescription Template
|Title=RDF Resource multiple attribution
|Description=How to attribute a single resource with two values of the same property in one document
}}
{{Modeling Issue Template
|Author=MichaelUschold,
}}
== RDF Resource multiple attribution - e.g. licences ==
''Issue'': How to attribute a single resource with two values of the same property in one document

''Example: ''publishing multiple licenses along with one rdf document.

''Source'': [http://lists.w3.org/Archives/Public/public-lod/ W3C Linked Open Data Discussion List.] This [http://markmail.org/thread/xu4hywhgexdmrzje thread].

''Conclusions:''

# One way is to use RDF reification, but this has some issues.
# OWL 2 has Axiom Annotations designed to do this.
# Caution: approaches often won't work unless the community adopts conventions and follows them.
# Principles:
## two documents about the same resource should serve the same data
## data should not be replicated all over the place

''Georgi Kobilarov'' posed the [http://markmail.org/message/xu4hywhgexdmrzje original question]:

I'm looking for a best practice for publishing multiple licenses along with one rdf document. Say I publish one URI for an artist: [http://example.org/resource/Madonna http://example.org/resource/Madonna].
I aggregate information from multiple sources about that artist, and those sources have different licenses. One triple comes from a source under GNU FDL, another triple from a source under Public Domain, and a owl:sameas link which I want to publish under Creative Commons License.

Any pointers to how to do that?

''Toby Inkster'' [http://markmail.org/message/y65ytyk7iyus5mix suggests] two options. One is reification, where you could create a statement resource which has the usual subject, predicate and object properties and an additional one for the licence. The other is to publish your data in a format that can make use of multiple graphs (e.g. N3). Unfortunately, this is not well supported in triple-consuming software.

However, you can fake named graphs in RDF/XML and Turtle, for example, by splitting the data into multiple documents and use rdfs:seeAlso links between the files to enable auto-dicovery. You could also duplicate that data - but that introduces other problems.

''Georgi Kobilarov'' [http://markmail.org/message/vi3wyhfqwk6d7qxj responds that] this solution would run into the issue that "two documents about the same resource should serve the same data". The html output would probably show all triples, but the content negotiated / 303ed rdf document would contain only links to other rdf documents. This would have to be set as common practice for it to work.

''Tom Heath'' [http://markmail.org/message/i5stbltaiajlvpip suggests] including the triples by reference to the source documents, rather than replicating external triples. In his view, "<nowiki>there's something that feels fundamentally wrong about replicating RDF data rather than just pointing applications to the places where they can find it... [it] seems </nowiki>fundamentally un-Web-like"

''Alan Ruttenberg'' [http://markmail.org/message/p2r4ne6woyoxr6ip points out that] OWL 2 provides a documented way of doing this using [http://www.w3.org/TR/2009/REC-owl2-syntax-20091027/#Annotations Axiom Annotations] along with a mechanism for [http://www.w3.org/TR/2009/REC-owl2-mapping-to-rdf-20091027/#Translation_of_Axioms_with_Annotations translating axioms with annotations]. It will last, and avoids confusion caused by RDF reification.

''Keith Alexander'' [http://markmail.org/message/tr3riemv72ujlbif adds]: I think that any publishers of linked data that want to place some restrictions on how their data is reused, should provide clearer guidelines on the technical solutions to fulfilling those requirements. Maybe if they thought about it and realised how confusing it all is, they'd decide they didn't really want to restrict reuse that much in the first place.

@@ Line 13: / Line 13: @@
 ''Example: ''publishing multiple licenses along with one rdf document.
-''Source'': The thread: [http://markmail.org/thread/xu4hywhgexdmrzje attaching multiple licenses] in the [http://lists.w3.org/Archives/Public/public-lod/ W3C Linked Open Data Discussion List.]
+''Source'': The thread: [http://lists.w3.org/Archives/Public/public-lod/2009Dec/0046.html attaching multiple licenses] ([http://markmail.org/thread/xu4hywhgexdmrzje Markmail]) in the [http://lists.w3.org/Archives/Public/public-lod/ W3C Linked Open Data Discussion List.]
 ''Conclusions:''

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 ''Issue'': How to attribute a single resource with two values of the same property in one document

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 |Description=General Issue: How to attribute a single resource with two values of the same property in one document
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 {{Modeling Issue Template
 |Author=MichaelUschold,
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 == RDF Resource multiple attribution - e.g. licences ==
 ''Issue'': How to attribute a single resource with two values of the same property in one document
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 ''Keith Alexander'' [http://markmail.org/message/tr3riemv72ujlbif adds]: I think that any publishers of linked data that want to place some restrictions on how their data is reused, should provide clearer guidelines on the technical solutions to fulfilling those requirements. Maybe if they thought about it and realised how confusing it all is, they'd decide they didn't really want to restrict reuse that much in the first place.

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 {{TitleDescription Template
-|Title=RDF Resource multiple attribution
+|Title=General Issue: RDF Resource multiple attribution
-|Description=How to attribute a single resource with two values of the same property in one document
+|Description=General Issue: How to attribute a single resource with two values of the same property in one document
 }}
 {{Modeling Issue Template