Re: Any objections against using xsd:anySimpleType or rdfs:Literal as the rdfs:range for OWL datatype properties?

2010-09-23 Thread Stephane Fellah
Sorry I made a type : please read: I think a datatype should NOT only be restricted to XML schema. Using xsd:simpleType would discard the case of using XML Literal (for example a GML encoded Geometry). Literal seems to be a safer bet. I wish to see in a future version of RDF, a mechanism to valid

Re: Any objections against using xsd:anySimpleType or rdfs:Literal as the rdfs:range for OWL datatype properties?

2010-09-23 Thread Stephane Fellah
Using xsd:simpleType would discard the case of using XML Literal (for example a GML encoded Geometry). Literal seems to be a safer bet. I wish to see in a future version of RDF, a mechanism to valid XML literal with an XML schema complex type or element. I think a datatype should only be restricted

Re: Any objections against using xsd:anySimpleType or rdfs:Literal as the rdfs:range for OWL datatype properties?

2010-09-23 Thread Alan Ruttenberg
On Thu, Sep 23, 2010 at 2:51 PM, Martin Hepp wrote: > NB: > > It seems that OWL 2 supports > > DataUnionOf( xsd:float xsd:decimal ) > > The question is how broadly current apps and repositories already support > OWL 2, in particular "at Web scale", outside of small, controlled > environments. Wha

Re: Any objections against using xsd:anySimpleType or rdfs:Literal as the rdfs:range for OWL datatype properties?

2010-09-23 Thread Martin Hepp
NB: It seems that OWL 2 supports DataUnionOf( xsd:float xsd:decimal ) The question is how broadly current apps and repositories already support OWL 2, in particular "at Web scale", outside of small, controlled environments. So I guess rdfs:Literal is the better choice for the moment. Mar

Re: Any objections against using xsd:anySimpleType or rdfs:Literal as the rdfs:range for OWL datatype properties?

2010-09-23 Thread Martin Hepp
Hi all: Thanks! So I understand that for an owl:DatatypeProperty that may hold xsd:float, xsd:integer, xsd:int, xsd:double, or xsd:decimal values, the simplest solution is rdfs:Literal. Is that correct? xsd:decimal would include xsd:integer and xsd:int (?), but there is no standard dataty

Re: New LOD Cloud

2010-09-23 Thread Karen Coyle
I looked on the site and did not find a legend for the color coding -- I'm probably overlooking it. Can someone post that link, for those of us who can't find it? Thanks, kc Quoting Antoine Isaac : Anja, Richard, (ccing the Library Linked Data list) Really great work! Adding to Rinke's co

Re: Any objections against using xsd:anySimpleType or rdfs:Literal as the rdfs:range for OWL datatype properties?

2010-09-23 Thread Alan Ruttenberg
On Thu, Sep 23, 2010 at 8:25 AM, Martin Hepp wrote: > Dear all: > > Are there any theoretical or practical problems caused by defining the range > of an owl:DatatypeProperty as > >  http://www.w3.org/2001/XMLSchema#anySimpleType > > or > >  http://www.w3.org/2000/01/rdf-schema#Literal rdfs:Litera

Semantic Web Challenge @ ISWC2010 (Submission deadline reminder)

2010-09-23 Thread Chris Bizer
Dear all, this is a reminder that the submission deadline for the Semantic Web Challenge 2010 is quickly approaching. The submission deadline is Next Friday, October 1st, 2010, 12 a.m. (midnight) CET The Semantic Web Challenge 2010 is collocated with the 9th International Semantic Web Conference

Re: New LOD Cloud

2010-09-23 Thread Hugh Glaser
Hi. On 23/09/2010 06:21, "Egon Willighagen" wrote: > On Wed, Sep 22, 2010 at 10:52 PM, Richard Cyganiak > wrote: >> On 22 Sep 2010, at 20:41, Egon Willighagen wrote: >> If you want to see ChEMBL in the next issue, better get started on those >> links ;-) > > I am on the road right now, but th

Re: Any objections against using xsd:anySimpleType or rdfs:Literal as the rdfs:range for OWL datatype properties?

2010-09-23 Thread Nathan
Martin Hepp wrote: Dear all: Are there any theoretical or practical problems caused by defining the range of an owl:DatatypeProperty as http://www.w3.org/2001/XMLSchema#anySimpleType RDF Semantics has a good discussion on this at: http://www.w3.org/TR/rdf-mt/#dtype_interp note that: "Th

Any objections against using xsd:anySimpleType or rdfs:Literal as the rdfs:range for OWL datatype properties?

2010-09-23 Thread Martin Hepp
Dear all: Are there any theoretical or practical problems caused by defining the range of an owl:DatatypeProperty as http://www.w3.org/2001/XMLSchema#anySimpleType or http://www.w3.org/2000/01/rdf-schema#Literal ? I think both should be valid (and are useful) in OWL DL ontologies, but

Announce: sitemap4rdf tool

2010-09-23 Thread Boris Villazón Terrazas
Dear all We are pleased to announce sitemap4rdf [1], a command-line tool that generates sitemap.xml files, that follow the sitemap protocol [2], for Linked Data sites that have a SPARQL endpoint. The Sitemap protocol is supported by the major search engines to ensure quick and complete indexin

Re: New LOD Cloud

2010-09-23 Thread John Erickson
I believe the coloring is based on the value of the CKAN "topic," as discussed here: http://esw.w3.org/TaskForces/CommunityProjects/LinkingOpenData/DataSets/CKANmetainformation So, one of: * media * geographic * lifesciences * publications (including library and museum data) * government * ecomme

Re: New LOD Cloud

2010-09-23 Thread Bob Ferris
Hi, is there a legend to the coloured cloud, which explains a bit the coloured clusters, or did I simply missed it? (it would be nice, if this legend is directly included in the graphic) Cheers, Bob Am 23.09.2010 10:09, schrieb Antoine Isaac: Anja, Richard, (ccing the Library Linked Data l

Re: New LOD Cloud

2010-09-23 Thread Antoine Isaac
Anja, Richard, (ccing the Library Linked Data list) Really great work! Adding to Rinke's comment, I'm also happily surprised by the coherence that you still can give to the various parts of the LOD cloud: the colored version is really fascinating to see [1]. Our core "library linked data" core

Re: New LOD Cloud

2010-09-23 Thread Egon Willighagen
On Wed, Sep 22, 2010 at 10:52 PM, Richard Cyganiak wrote: > On 22 Sep 2010, at 20:41, Egon Willighagen wrote: > If you want to see ChEMBL in the next issue, better get started on those > links ;-) I am on the road right now, but there is low hanging fruit... however, at the same time, I need to u

Re: New LOD Cloud

2010-09-23 Thread Rinke Hoekstra
Dear Anja and Richard, Excellent work! It's amazing how this thing keeps growing. Cheers, Rinke On 22 sep 2010, at 20:50, Anja Jentzsch wrote: > Hi all, > > thanks for all your input and the support on migrating the data set > information to CKAN! > > The LOD Cloud as of September 2010 is f