On 11.11.2017 12:55, Sidra shah wrote: > Hello Lorenz and thank you for your information. > > * All the data of this resource is still located in the DBpedia dataset > > If it is the case, then why we provide links to Dbpedia resource inside > Protege editor? All I want to re-use the data/information of Dbpedia > > Its then better that we use rdfs:seeAlso and provide Dbpedia resource, like > www.myOntology.org/Oxford and then use > rdfs:seeAlso http:dbpedia.org/resource/Oxford I guess you're mixing up things here. Indeed it's fine to reuse resource from the Web of Data. I mean, that's in general how Linked Data is supposed to work. Ok, sometimes it'S also recommended to define your own resources and relate those to external datasets via owl:sameAs, but the result is more or less the same. The data is located at different places.
But, and that's what you have to understand: whatever you're doing with your local data, querying, inferencing, etc. - the tool/framework/API you're using for that has to be able to retrieve the data from different locations if the data is physically located at different locations. Seems quite obvious or not? And now it's up to you: given that you're reusing DBpedia resources in your ontology: 1) how does the SPARQL query engine working on your local ontology know where the data comes from? Again, it should be quite obvious that it's up to you to do all the setup, which brings us to the concept of federated query processing... > > Regards > > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon> > Virus-free. > www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link> > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > > On Sat, Nov 11, 2017 at 1:25 PM, Lorenz Buehmann < > [email protected]> wrote: > >>> The second point is if we enter individual in Protege (Create New OWL >>> Individual) and then enter URI like "http:dbpedia.org/resource". >> I understand. But what do you expect to be happened with this step?All >> that you did is to create an OWL individual with the URI of the DBpedia >> resource. All the data of this resource is still located in the DBpedia >> dataset which is >> a) available via RDF dumps or >> b) the public DBpedia SPARQL endpoint >> c) HTTP GET request according to the Linked Data priciple >> >> But the data is **not** in your local ontology and neither Protege nor >> the built-in SPARQL plugin would have access to it. >>> By better I mean better in general (performance, re-use).etc. Will it be >>> considered a "Dbpedia resource" if we just include its URI in Protege >>> editor and then query it locally like we query traditional data in >> Protege >>> (Ontology). >> How do you query it locally? Which API, which triple store, etc? >> >> In general, what is the use-case? >> >>> <https://www.avast.com/sig-email?utm_medium=email&utm_ >> source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon> >>> Virus-free. >>> www.avast.com >>> <https://www.avast.com/sig-email?utm_medium=email&utm_ >> source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link> >>> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >>> >>> On Sat, Nov 11, 2017 at 1:05 PM, Lorenz Buehmann < >>> [email protected]> wrote: >>> >>>> 1. Define "better" >>>> >>>> 2. I don't understand what you mean by the second point ... what is an >>>> "IRI editor"??? And then, how would that extract "some triples"? >>>> >>>> >>>> As I don't know what you're asking about and to keep it short, the >>>> common way to extract RDF triples from and RDF dataset is to use a >>>> SPARQL CONSTRUCT query that matches those "some triples". >>>> >>>> >>>> On 10.11.2017 17:11, Sidra shah wrote: >>>>> Hello >>>>> >>>>> For instance, if we have to get some triples from Dbpedia, which one is >>>>> better way to get? >>>>> >>>>> (1) Directly use Dbpedia endpoint inside application? >>>>> >>>>> (2) Use Ontology and use IRI editor like >> dbpedia.org/resource/SOMETHING? >>>>> Thank you >>>>> >>
