Mar 26, 2013 · I am new to Semantic Web and I have a very basic question about the JENA RDF Dataset. I read it from the documentation that a dataset is a collection of graphs (or Models in the Java API). If I view the graph (the model) as a RDF Alternative to Relational DB's 'Table', can I view the dataset as a 'Database' ? yes - sort of.

Jul 9, 2015 · The way that FROM and FROM NAMED work is described more in 13.2 Specifying RDF Datasets in the SPARQL 1.1 specification. The relevant parts include: The relevant parts include: A SPARQL query may specify the dataset to be used for matching by using the FROM clause and the FROM NAMED clause to describe the RDF dataset.

May 4, 2021 · (without having to explore the dataset in detail) This would be for the cases in which there is no explicit ontology for the dataset. The purpose is to avoid having to explore the dataset in detail, and end up constructing the ontology myself, at the risk of missing important facts or relationships present in the data, and intended to be there ...

May 2, 2012 · I am looking for a dataset of human anatomy, that gives me the hierachacal relationships between the body parts/bones/muscles. I have found data sets such as UMLS and GALEN which are large RDF/OWL data sets that give me this sort of data but I have found getting the subset of data I want out quite difficult - mainly due to the lack of .NET ...

Oct 17, 2022 · A dataset consists of many graphs. Turtle can be used for a single graph, while TriG can be used to express multiple graphs in a single file. Its advantages for expressing RDF are otherwise comparable to Turtle, so you'd only consider using it over Turtle when you have multiple graphs to encode.

A couple of visually appealing additional alternatives, although IMHO they are not that well suited for visualizing extremely large RDF datasets: RDF Playground by Bastián Inostroza, Raúl Cid, Pablo Jaramillo, Rodrigo Iturrieta, Giuliano Celedón at the Univ. of Chile. RDF Sketch by Zazuko.

Mar 14, 2012 · Needing RDF sample dataset. Ask Question Asked 13 years, 9 months ago. Modified 12 years, 11 months ago.

Dec 16, 2012 · The file yourConfig.ttl is a RDF file (in turtle serialization format). To set up a basic server that loads your RDF file to memory just write (replacing at least the path to your dataset file): # Attention: I have omitted the @prefix declarations [] rdf:type fuseki:Server ; fuseki:services ( <#yourService> ) .

Apr 15, 2011 · Eventually if you are handling big datasets you might need to assert your data into a scalable triple store, the one I normally use is 4store. 4store internally uses redland to parse RDF files. In the long term, I think, going for a scalable triple store is what you'll have to do.

Oct 2, 2016 · If there isn't a SPARQL endpoint for the dataset you should consider setting up your own server with the data already loaded. If you need a "load-and-query" service, Apache Jena Fuseki1 provides this facility at /sparql.html (the form) and /sparql (endpoint).