Re: URIs within URIs

On 8/22/14 4:44 PM, Luca Matteis wrote:
> Dear LOD community,
>
> I'm wondering whether there has been any research regarding the idea
> of having URIs contain an actual URI, that would then resolve
> information about what the linked dataset states about the input URI.
>
> Example:
>
> http://foo.com/alice -> returns data about what foo.com has regarding alice
>
> http://bar.com/endpoint?uri=http%3A%2F%2Ffoo.com%2Falice -> doesn't
> just resolve the alice URI above, but returns what bar.com wants to
> say about the alice URI
>
> For that matter http://bar.com/?uri=http%3A%2F%2Ffoo.com%2Falice could return:
>
> <http://bar.com/?uri=http%3A%2F%2Ffoo.com%2Falice> a void:Dataset .
> <http://foo.com/alice> <#some> <#data> .
>
> I know SPARQL endpoints already have this functionality, but was
> wondering whether any formal research was done towards this direction
> rather than a full-blown SPARQL endpoint.
>
> The reason I'm looking for this sort of thing is because I simply need
> to ask certain third-party datasets whether they have data about a URI
> (inbound links).
>
> Best,
> Luca
>
>

Luca,

I don't totally understand your quest, but I have a hunch you might be 
looking for something like:

http://lod.openlinksw.com/describe/?url=http://dbpedia.org/resource/Linked_data

And via cURL you have:
curl -I 
http://lod.openlinksw.com/describe/?url=http://dbpedia.org/resource/Linked_data
HTTP/1.1 200 OK
Date: Fri, 22 Aug 2014 22:27:33 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 57263
Connection: keep-alive
Server: Virtuoso/07.10.3210 (Linux) x86_64-redhat-linux-gnu  VDB
Accept-Ranges: bytes
Cache-Control: no-cache, must-revalidate
Pragma: no-cache
Link: 
<http://lod.openlinksw.com/sparql?query=define%20sql%3Adescribe-mode%20%22LOD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FLinked_data%3E&output=application%2Frdf%2Bxml>; 
rel="alternate"; type="application/rdf+xml"; title="Structured 
Descriptor Document (RDF/XML 
format)",<http://lod.openlinksw.com/sparql?query=define%20sql%3Adescribe-mode%20%22LOD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FLinked_data%3E&output=text%2Fn3>; 
rel="alternate"; type="text/n3"; title="Structured Descriptor Document 
(N3/Turtle 
format)",<http://lod.openlinksw.com/sparql?query=define%20sql%3Adescribe-mode%20%22LOD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FLinked_data%3E&output=application%2Frdf%2Bjson>; 
rel="alternate"; type="application/rdf+json"; title="Structured 
Descriptor Document (RDF/JSON 
format)",<http://lod.openlinksw.com/sparql?query=define%20sql%3Adescribe-mode%20%22LOD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FLinked_data%3E&output=application%2Fatom%2Bxml>; 
rel="alternate"; type="application/atom+xml"; title="Structured 
Descriptor Document (OData/Atom 
format)",<http://lod.openlinksw.com/sparql?query=define%20sql%3Adescribe-mode%20%22LOD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FLinked_data%3E&output=application%2Fodata%2Bjson>; 
rel="alternate"; type="application/odata+json"; title="Structured 
Descriptor Document (OData/JSON 
format)",<http://lod.openlinksw.com/sparql?query=define%20sql%3Adescribe-mode%20%22LOD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FLinked_data%3E&output=text%2Fcxml>; 
rel="alternate"; type="text/cxml"; title="Structured Descriptor Document 
(CXML 
format)",<http://lod.openlinksw.com/sparql?query=define%20sql%3Adescribe-mode%20%22LOD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FLinked_data%3E&output=text%2Fcsv>; 
rel="alternate"; type="text/csv"; title="Structured Descriptor Document 
(CSV 
format)",<http://lod.openlinksw.com/sparql?query=define%20sql%3Adescribe-mode%20%22LOD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FLinked_data%3E&output=application%2Fmicrodata%2Bjson>; 
rel="alternate"; type="application/microdata+json"; title="Structured 
Descriptor Document (Microdata/JSON 
format)",<http://lod.openlinksw.com/sparql?query=define%20sql%3Adescribe-mode%20%22LOD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FLinked_data%3E&output=text%2Fhtml>; 
rel="alternate"; type="text/html"; title="Structured Descriptor Document 
(HTML+Microdata 
format)",<http://lod.openlinksw.com/sparql?query=define%20sql%3Adescribe-mode%20%22LOD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FLinked_data%3E&output=application%2Fld%2Bjson>; 
rel="alternate"; type="application/ld+json"; title="Structured 
Descriptor Document (JSON-LD 
format)",<http://dbpedia.org/resource/Linked_data>; 
rel="http://xmlns.com/foaf/0.1/primaryTopic", <?first>; rel="first", 
<?last>; rel="last", <?next>; rel="next", <?prev>; rel="prev", 
<http://dbpedia.org/resource/Linked_data>; rev="describedby"



-- 
Regards,

Kingsley Idehen 
Founder & CEO
OpenLink Software
Company Web: http://www.openlinksw.com
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