Hi Barry,
First, the obvious: the MusicBrainz core data is in the Public Domain,
and you can freely publish its transformation as you like, but the
MusicBrainz supplementary data is CC-BY-NC-SA and its transformations
must be shared "alike".
So, if you have created a dataset, this time in RDF, containing the
"user ratings" (supplementary data) in MusicBrainz, you have little
choice: CC-BY-NC-SA. Yet DBpedia requires CC-BY-SA, so in theory this
downgrade would not be acceptable: you should not include in DBpedia any
piece belonging to the "MusicBrainz Supplementary Data".
Next, about the granularity level for licensing: individuals of
rr:TriplesMap look a perfect target to be attributed and licensed. No
individual data -or small pieces, like a single user rating and derived
statistics- receive actually any protection by the law, but by
publishing many of them the collection would be protected. A single
triple pointing to a license ( <myTripleMap> dc:license
<license_of_your_choice>) should suffice.
Finally, I see the question "triples that are created using it" as very
conflictive one. Are those triples transformed versions of the mapping?
Víctor
El 12/07/2013 14:20, Barry Norton escribió:
I'd like to publicly release R2RML mappings for the MusicBrainz
dataset. DBpedia has shown interest in including the subset that can
be used to create a linkset.
Any idea what (kind of) licence could/should apply? (To be clear, to
the mappings, as opposed to the dataset)
I'd also like to attach, since R2RML is RDF, a licence and attribution
on a per rr:TriplesMap basis. (The mappings are hosted on github and
contributions will be accepted as I'm never going to get through all
of the MB Advanced Relationships, a moving target, myself and I'm
being a bottleneck.)
The question's also been raised on whether a given licence can in turn
impose conditions on the triples that are created using it (as
derivative works)? Does that sound feasible?
Any input appreciated.
Barry
--
Víctor Rodríguez-Doncel
D3205 - Ontology Engineering Group (OEG)
Departamento de Inteligencia Artificial
Facultad de Informática
Universidad Politécnica de Madrid
Campus de Montegancedo s/n
Boadilla del Monte-28660 Madrid, Spain
Tel. (+34) 91336 3672
Skype: vroddon3
