how to apply SPARQL queries on two ontologies with protege. in the same localhost.It mast be merged first?
WHAT IS THE ROLE OF NaOH IN THE REDUCTION?
17 January 2024 7,968 0 View
My question is to clarify if there is difference on degradation mechanism when the catalyst TiO2 is fixed under sunlight degradartion
12 August 2020 9,620 7 View
Dear all, I want to ask help in creating a plugin or a tab for writing SWRL inference rules. Can I use SPARQL Query or DL Query tabs?
01 January 1970 5,311 7 View
Dear all, please can you tel me a set of questions that you write in research engines and you find them difficult to extract? for example, what are the challenges in a certain domain.
01 January 1970 3,413 1 View
No hay
28 March 2023 9,869 0 View
I totally can imagine what a huge potential semantic technologies such as knowledge graphs, ontologies, SPARQL search and automated reasoning might have in different fields of science and...
22 November 2022 578 1 View
For learning SPARQL it might be useful to have full control over both the query text and the data (RDF triples). While there are many public SPARQL endpoints available their data is typically...
05 March 2022 2,286 3 View
I try to understand the rector-normalization-technique [1] for ontologies in detail. [1] https://douroucouli.wordpress.com/2019/06/29/ontotip-learn-the-rector-normalization-technique/ The...
16 February 2022 2,135 0 View
SPARQL property paths only return the start and end nodes of a path and do not allow variables in property path expressions. SPARQL property paths don't return intermediate nodes neither triples....
25 January 2022 7,096 2 View
What are the available knowledge graphs with SPARQL endpoints? I know DBpedia, Wikidata, YAGO, and MAKG.
21 December 2021 9,665 3 View
My ontology is about medicine(Diseases based on ICD-10,Specialties etc). I have used annotation property rdfs:label but due to the number of concepts it's time consuming process. Is there a way by...
28 November 2020 6,376 4 View
Dear all, i have a problem with Protege at the moment. Protege can only write a TURTLE or RDF/XML Sytnax with an OWL part in it, you can not "turn off" the OWL Syntax. My problem is that I'm not...
28 April 2020 9,623 1 View
Dear All, I have made a local ontology and provided some properties to its individuals. I have published it on LoD cloud, now I wish that the ontology gets updated automatically with current...
08 April 2020 808 0 View
I want to query SPARQL Query with LUBM dataset. This is used as an benchmark for this? Just want to understand how i can i setup the environment to execute SPARQL query with different datasize.
13 January 2020 7,741 2 View