Hi everybody, I would like to execute a query using an anonymous ID. This is the query: <query> PREFIX hermes: <http://www.owl-ontologies.com/unnamed.owl#> ...
... if ... you're ... That's what the optional/!bound idiom does. There is also the ARQ query language, which is SPARQL+extensions. One extension is UNSAID -...
... Where do you want to go from there? Note that getRange returns /one/ type OntResource, and an OntProperty can have /several/ range types. Suppose you're...
Hi everybody, I have written my first custom SPARQL function for ARQ. I understood that there are two ways to use this function: 1 - dynamically loading it...
... Right - it's a fake URI! Using a blank node in a query as _:a or [] in a query is like a variable. Blank nodes are, well, blank. The anonymous id is the...
... Java will require any code to be on the classpath whether you use the java: mechanism or you explicitly register an extension. Explicitly registered...
... As the function is registered by URI, that URI is used to call it: FILTER ( <http://example/function1234>(?x, "arg")) which can be abbeviated as usual: ...
... me ... I was wondering if start is always from &travelers; or from &flights;. If so, you might use a UNION but it has a very similar effect to two ...
I am setting up RDF databases of biological data, and many of the terms used (e.g. NCBI Taxonomy terms, or Gene Ontology terms) use numeric identifiers for the...
Ok, I'll try to be more specific. I get a string parameter from a web application that is supposed to be a value of a property. That string may include a URI,...
... In the SPARQL syntax, the local part of a prefixed name can't begin with a digit. Both are an NCNAMEs and NCNAMEs (in XML) start with a letter or a _ ...
... Sure. One question is whether you have any control over the RDFS property definitions. If someone leaves a property range blank or declares the property to...
Hi, Does anyone know of any tools which can be used to generate a Web-UI for manipulating OWL instance data based on a given OWL file ? What i'm looking for is...
I made rss channel sample in jena. follow is source code: /////////////////////////////////////////////////////////////////////// Model model =...
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M.J. van der Veen
forward@...
Nov 2, 2006 11:47 am
Hi, I was wondering if it is possible to embed javascript in rdf? I'm getting parse errors when using < and & values. Is there a parseType of something for...
... Yes. ... Presumably you are using XML syntax in which case you need to use the usual entity escapes < and & . I put javascript in RDF using the N3...
M.J. van der Veen wrote: ... There is a FILTER function datatype() define in SPARQL { ?field rdf:type ns:Field . FILTER (datatype(?field) = xsd:dateTime) } ...
Hi, I installed joseki on my PC with Windows XP. From the page, http://localhost:2020/sparql.html I put the following lines in the text area PREFIX rdfs:...
Are you behind a firewall? If so, you're browser is presumably set up to get through. You'll need to set the proxy for Java to run Joseki. ... You'll get no...
I have been trying to construct RDF from relational data. The spec says that two resources should point to each other using rdf:resource. I have been able to...
I've only used SPARQL with SELECT up to this point, and I am now trying to use CONSTRUCT. I seem to be having some difficulty getting my head around how the...
I found some difficulties while compiling the tutorials. Do I need to download other packages to do the tutorials? Thanks. Below is the detail: javac...
