[ontoiop-forum] "Dataset description" paper about the OntoIOp registry submitted: questions about license and API4KB

[Christoph LANGE]

Hi Peter,

Peter Yim on 2014-10-08 21:33:
 >  > [CL] ... so two reasonable ones remain ... [ ODC 1.0 or CC0]
 >
 > [ppy] besides those two, one might also consider "CC BY 4.0" - see:
 > http://creativecommons.org/licenses/by/4.0/

For data, the normal CC licenses are rather being advised against.

I didn't exactly know why.  However I found help here:

http://opendata.stackexchange.com/questions/26/benefits-of-using-cc0-over-cc-by-for-data 


http://www.canadensys.net/2012/why-we-should-publish-our-data-under-cc0 
(specifically addresses CC-BY).

In a nutshell: For data, licenses that were not designed for data, have 
impractical constraints.

CC0 is actually more of a waiver than a license; it basically says "do 
whatever you want with the data".

ODC-By, like CC-BY, requires attribution, which may lead to the problem 
of "attribution stacking" when republishing derivatives of data based on 
a republication of derivatives of other data.  However, the attribution 
requirement of ODC-By is easier to satisfy than that of CC-BY.  CC-BY 
says that "you must provide the name of the creator and attribution 
parties, a copyright notice, a license notice, a disclaimer notice, and 
a link to the material".  ODC-By makes this a lot simpler: you only have 
to refer to the _dataset_ by name, e.g. "Contains information from the 
OntoIOp Registry (http://purl.net/dol/registry) which is made available 
under the ODC Attribution License".

I personally prefer CC0.  CC0 makes it easiest to reuse our data, and we 
certainly want to promote the reuse of our data.  ODC-By has the 
advantage of advertising our dataset, but OTOH we are deploying the 
OntoIOp Registry as a _linked_ open dataset, in which particularly every 
item has a link back to the top level of the dataset.  Plus, the OntoIOp 
Registry URIs (e.g. http://purl.net/dol/logics/SROIQ) will soon point to 
Ontohub, where human visitors won't see RDF/XML but shiny HTML.  Ontohub 
currently advertises the OOR in its page footer; maybe it could also say 
"powered by OntoIOp".

Cheers,

Christoph

-- 
Christoph Lange, Enterprise Information Systems Department
Applied Computer Science @ University of Bonn; Fraunhofer IAIS
http://langec.wordpress.com/about, Skype duke4701

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