Re: social-ISSUE-14 (elf-pavlik): as:Link adds a lot of complexity, if we keep it we need to clarify consequences of using it instead of as:Object [Activity Streams 2.0]

On 04/05/2015 12:13 PM, Andreas Kuckartz wrote:
> Well, "http://example.org/martin/image" supposedly is an URL of the
> binary image, not of the "image" document - or is content negotiation
> to be used here so that the URL can in the end lead to either
> "image/jpeg" or an RDF serialization like "application/ld+json" ?
Please take a look at research i gathered on
https://www.w3.org/wiki/Socialwg/MediaObject

IMO we should use different URIs for binary image and RDF Source, in our
case JSON-LD document. While the second can link to binary image in a
similar way as http://schema.org/encoding. To link the other way maybe
we could use HTTP Header Link with rel="meta", similar to
*Autodiscovery* patern
http://patterns.dataincubator.org/book/autodiscovery.html

I didn't add this one to the wiki yet, but to relate binary image with
'social artifact' one could use something in direction

{
  "@context": {
    ...
    "encodingOf": { "@reverse": "http://schema.org/encoding", "@type":
"@id"}
  },
 ...
    "image": {
          "@type": "ImageBlob",
          "@id": "http://example.org/martin/blobs/image.jpeg",
          "encodingOf": "http://example.org/martin/selfies/23",
          "mediaType": "image/jpeg",
          "width": 250,
          "height": 250
    }
}

Sadly HTTP Link Header deprecated use of *rev*
https://github.com/mnot/I-D/issues/39#issuecomment-89655519

and range for image would include as:Image and as:ImageBlob instead of
as:Image and as:LinkNotHandler ...

as:image a owl:ObjectProperty ;
  rdfs:label "image"@en ;
  rdfs:range [
    a owl:Class ;
    owl:unionOf ( as:Image as:LinkNotHandler )
  ] ;
  rdfs:domain as:Object .

to

as:image a owl:ObjectProperty ;
  rdfs:label "image"@en ;
  rdfs:range [
    a owl:Class ;
    owl:unionOf ( as:Image as:ImageBlob )
  ] ;
  rdfs:domain as:Object .

We will have chance to discuss it in more depth during F2F3 in Paris :)
Please don't forget to add yourself to
https://www.w3.org/wiki/Socialwg/2015-05-04#Participants

Cheers!