Re: French translation of some Jena tutorials

2012-07-11 Thread Ian Dickinson
Hi Julien, On 12/07/12 00:24, Julien Plu wrote: Hi Ian, Cool !! Thanks for accepting this. For the intro that will be : """ Quelques uns des tutoriels de Jena sont aussi disponibles en français. Vous pouvez les voir en suivant ces liens : * Une introduction à RDF * Requêtes SPARQL utilisant l

Re: French translation of some Jena tutorials

2012-07-11 Thread Julien Plu
Hi Ian, Cool !! Thanks for accepting this. For the intro that will be : """ Quelques uns des tutoriels de Jena sont aussi disponibles en français. Vous pouvez les voir en suivant ces liens : * Une introduction à RDF * Requêtes SPARQL utilisant l'API Java ARQ * Les entrées/sorties RDF * Une in

Re: French translation of some Jena tutorials

2012-07-11 Thread Ian Dickinson
Hi Julien, On 11/07/12 21:37, Julien Plu wrote: Hi, Me and some other persons, translated four tutorials from Jena website on Developpez.com, there a list of the tutorials : http://web-semantique.developpez.com/tutoriels/jena/introduction-rdf/ http://web-semantique.developpez.com/tutoriels/jen

Re: Fuseki 0.2.3 performance / StatsMatcher warnings

2012-07-11 Thread Michael Brunnbauer
Hello Andy, On Wed, Jul 11, 2012 at 08:18:53PM +0100, Andy Seaborne wrote: > Could you try: > > 1/ SELECT (count(*) AS ?count) WHERE ... >and let me know the counts. 6 2 0 0 0 ... > 2/ SELECT (count(DISTINCT *) AS ?count) WHERE ... >and let me know the counts. 6 2 0 0 0 ... > 3/ Chan

Re: Fuseki 0.2.3 performance / StatsMatcher warnings

2012-07-11 Thread Andy Seaborne
On 11/07/12 19:59, Michael Brunnbauer wrote: Hello Andy, On Wed, Jul 11, 2012 at 07:04:21PM +0100, Andy Seaborne wrote: I have just replaced Joseki 3.4.3 with Fuseki 0.2.3 for our projects www.foaf-search.net and www.semantic-search.info. Which version of TDB are you using with Joseki? I wa

Re: Fuseki 0.2.3 performance / StatsMatcher warnings

2012-07-11 Thread Michael Brunnbauer
Hello Andy, On Wed, Jul 11, 2012 at 07:04:21PM +0100, Andy Seaborne wrote: > >I have just replaced Joseki 3.4.3 with Fuseki 0.2.3 for our projects > >www.foaf-search.net and www.semantic-search.info. > Which version of TDB are you using with Joseki? I was using the Joseki-3.4.3 distribution whic

Re: Fuseki 0.2.3 performance / StatsMatcher warnings

2012-07-11 Thread Andy Seaborne
On 11/07/12 16:05, Michael Brunnbauer wrote: hi all I have just replaced Joseki 3.4.3 with Fuseki 0.2.3 for our projects www.foaf-search.net and www.semantic-search.info. Which version of TDB are you using with Joseki? I have used config-tdb.ttl as starting point for the configuration. My f

Re: ARQ function

2012-07-11 Thread Andy Seaborne
On 11/07/12 17:37, Cong Wang wrote: However, if i don't know the prefix??? What do you want? A possible namespace -- afn:namespace or in java Util.splitNamespace The namespaces declared -- the model and the query record the prefixes (or you can set them). But the namespace is not in the tr

Re: ARQ function

2012-07-11 Thread Cong Wang
However, if i don't know the prefix??? -- Cong Wang Sent with Sparrow (http://www.sparrowmailapp.com/?sig) On Wednesday, July 11, 2012 at 5:33 PM, Andy Seaborne wrote: > On 11/07/12 17:19, Dave Reynolds wrote: > > On 11/07/12 16:26, Cong Wang wrote: > > > Hi all, > > > > > > ex:car1 rdfs

Re: ARQ function

2012-07-11 Thread Andy Seaborne
On 11/07/12 17:19, Dave Reynolds wrote: On 11/07/12 16:26, Cong Wang wrote: Hi all, ex:car1 rdfs:subClassOf ex:SportsCar . Suppose the sparql query is select ?x where { ?x ?y ?z . } while, I want to get "ex:car1" as a string, then i use str(?x), however it returns "http://.…./ex#car1";, with

Re: ARQ function

2012-07-11 Thread Dave Reynolds
On 11/07/12 16:26, Cong Wang wrote: Hi all, ex:car1 rdfs:subClassOf ex:SportsCar . Suppose the sparql query is select ?x where { ?x ?y ?z . } while, I want to get "ex:car1" as a string, then i use str(?x), however it returns "http://.…./ex#car1";, with prefix..I just want "ex:car1". Besides,

Fuseki 0.2.3 performance / StatsMatcher warnings

2012-07-11 Thread Michael Brunnbauer
hi all I have just replaced Joseki 3.4.3 with Fuseki 0.2.3 for our projects www.foaf-search.net and www.semantic-search.info. I have used config-tdb.ttl as starting point for the configuration. My first impression is that it is *much* slower. Is this normal ? More configuration details on demand.

Re: Performance issue with OPTIONAL in CONSTRUCT

2012-07-11 Thread Andy Seaborne
SELECT vs CONSTRUCT wil make little difference - a CONSTRUCT is a SELECT with DISTINCT followed by making the RDF. It's easier to work with SELECT * for analysis of the query pattern. Having the optional first is a possible cause - your query asks for all of: OPTIONAL {?xyz oboe-core:hasMeasur