Currently the linked data graph is linked at the data level (directly by addressing other resources URIs, through properties or through sameAs). Because the task is often massive, resource publishers tend to write programs for extracting these links, we call them 'link generators'. Yet, at the moment, a few tools exist which each use their own input format, that we will call 'link generator specification', or specification for short.
We would like to investigate the idea of publishing, as a kind of ontology alignments, these specification on the web. Note that the links themselves are already available through source providers or services like sameAs.org. Publishing a high level specification of these links may have many interesting applications:
For that purpose, it is necessary that these alignments or specification could be expressed in a common language which is:
We would like to run a quick experiment during the next summer in order to evaluate primarily the feasibility of this approach and eventually the adequacy of the available formats. Our plan is the following:
So, this is where we need you: we would like every possible resource publisher in the LOD to send us a reference to their link generator specifications. We know that this will not be homogeneous nor easy to understand, but we want to confront ourselves with all this diversity. So we do not ask you to change anything, we take everything: Specialised link specification languages (e.g., Silk-SSL), RDF, SPARQL, XSLT, Perl, Java, C++, etc.
Of course, we would like to make this as open as possible and at least to return the results to the community. We have set up a web site (http://melinda.inrialpes.fr) about this initiative so that we can report on it, but we naturally prefer that all resources be as distributed as possible (alignments are far lighter than the data).
|Dataset 1||Dataset 2||Language||Tentative alignment|
|Countries||DBPedia||CIA factbook||Silk-LSL||see here|
|Music artists, records and tracks||Jamendo||MusicBrainz||LDmapper, Prolog|
|Research domain||DBPedia||TAP||Knofuss, OWL||see here|
|Research domain||Sweto||TAP||Knofuss, OWL||see here|