jena

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Jena Sparql and construct

CONSTRUCT is an alternative SPARQL result clause to SELECT. Instead of returning a table of result values, CONSTRUCT returns an RDF graph.For instance, running this query in the following Java code pr[详细]

2023-01-02 13:47 分类：问答
Print the jena result set in html(servlet/jsp)

I\'m using servlet for manipulating ontology. I got the result of my SPARQL query and I want to display(print) that result in JSP (Servlet).[详细]

2023-01-02 06:09 分类：问答
Linked data and endpoint

Why does the end point matters so much to the end results of the query. For this query: SELECT ?episode,?chalkboard_gag WHERE {[详细]

2023-01-01 17:10 分类：问答
Reading Ontology with Jena, feeding it with RDF triples, and producing correct RDF string output

I have an ontology, which I read in with Jena to help me scrape some RDFa triples from a website. I don\'t currently st开发者_高级运维ore these triples in a Jena model, but that is fairly straight for[详细]

2022-12-30 14:12 分类：问答
Jena result in UTF-8 format

How can I get in Jena (Java language) result in UTF-8 format? My code: Query query= QueryFactory.create(queryString);[详细]

2022-12-27 06:44 分类：问答
What are the Jena methods used to access an ontology?

Hello I\'m new to ontologies, my assignment is to create an ontology using Protege V4.0.2, (which I\'ve done) and to create a website over that ontology(which I\'m working on),[详细]

2022-12-26 04:19 分类：问答
Querying DBpedia with SPARQL and Jena

I cannot understand how can I query DBpedia using Jen开发者_StackOverflow社区a. In the tutorials like here(Listing 4) model is initialized as follows:[详细]

2022-12-10 13:46 分类：问答
Which knowledge base/rule-based inference engine to choose for real time Runway incursion prevention system

we are designing a project that would listen to dialog between airport controllers and pilots to prevent runway incursions (eg. one airplane is taking off while other is crossing the runway). Our prof[详细]

2022-12-10 06:52 分类：问答