Re: [JENA-DEV] SPARQL - Way to concat several property values

2018-02-20 Thread Paul Tyson
Data and query samples would help. (I could not see the image.) But from your problem description, you might try GROUP BY and the GROUP_CONCAT aggregate function. This would put (for example) all the properties of a subject in one result field, separated by the delimiter of your choice. See the

Save the date: ApacheCon North America, September 24-27 in Montréal

2018-02-20 Thread Rich Bowen
Dear Apache Enthusiast, (You’re receiving this message because you’re subscribed to a user@ or dev@ list of one or more Apache Software Foundation projects.) We’re pleased to announce the upcoming ApacheCon [1] in Montréal, September 24-27. This event is all about you — the Apache project

Re: Reasoners for RDFS + owl:sameAs: performance, stability & best practices

2018-02-20 Thread Alexis Armin Huf
Hi Andreas, I had a similar scenario, but as Dave said there is no choose-a-enum-value reasoner for that. What I did was picking the RDFS and owl:sameAs rules from the rule files in Jena source and instantiate a GenericRuleReasoner with my custom rule file. Docs for how to do this are here:

[JENA-DEV] SPARQL - Way to concat several property values

2018-02-20 Thread Brice Sommacal
Hi dear jena users, Here is a question regarding how to output a SPARQL result set into a Google SpreadSheet with a concatenation mode. We have been using a SPARQL RESULT set in order to feed a google spreadsheet. The result is below. There is nothing new, we get one line result for each match

RE: Configuring fuseki with TDB2 and OWL reasoning

2018-02-20 Thread Nouwt, B. (Barry)
Hi Eric, Another thing I noticed is that you said you were manually loading the data via the GUI after Apache Jena Fuseki has started. Maybe that data is not stored in the correct location (i.e. the baseModel of the InfModel) and there the reasoning fails? You could try to load the data on

Re: Configuring fuseki with TDB2 and OWL reasoning

2018-02-20 Thread Andy Seaborne
Eric, Glad we have got the configuration sorted out. This is now a different problem which isn't a matter of getting the right configuration. I don't know what's going on yet; it's also not a quick thing to look at and address. I've recorded it as

Re: Reasoners for RDFS + owl:sameAs: performance, stability & best practices

2018-02-20 Thread Dave Reynolds
Hi Andreas, Jena does not currently have any alternative built reasoner for RDFS + owl:sameAs and I'm not aware of any such "equality reasoner" being in development. You could try Pellet, which may offer better performance. In fact equality reasoning is notoriously expensive in the general