Am 24.06.2011 um 22:08 schrieb Mauro Bieg:
> Am 24.06.2011 um 18:19 schrieb Dave Reynolds:
>
>> On Fri, 2011-06-24 at 17:58 +0200, Mauro Bieg wrote:
>>
>>> i guess i need owl reasoning (as i want to infer from an owl:unionOf).
>>> would you know whether Pellet or the OWLMicroFBRuleReasoner is faster?
>>
>> It depends.
>>
>> For complex ontologies then Pellet is generally faster, as well as being
>> complete.
>>
>> For simple cases OWLMicro can be faster.
>>
>> Try it, I'd be interested to hear how they compare on your data.
>>
>>> p.s. i haven't written any java code for this and might not have to.
>>> currently i'm just using the assembler posted above to start up fuseki
>>> (with --desc=./assembler.ttl) and query/update the rdf-store with sparql
>>> over http.
>>> so it might be a good idea to post that list (maybe along with my
>>> assembler) to http://openjena.org/wiki/Fuseki so that other people don't
>>> have to do the same search as i did. so far fuseki has served me great,
>>> just adding the reasoner was nowhere really documented.
>>
>> Yes, the list of Reasoner URIs should certainly be posted somewhere,
>> possibly as part of the assembler documentation. I'll log that on Jira
>> since the web documentation is all in transition right now.
>>
>> Dave
>
>
> okay, i'm trying to get fuseki to run with pellet now.. i have the following
> pellet.ttl assembler file now:
>
> @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
> @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
> @prefix ja: <http://jena.hpl.hp.com/2005/11/Assembler#> .
> <#dataset> rdf:type ja:RDFDataset ;
> ja:defaultGraph <#inf_graph> ;
> .
> <#inf_graph> rdf:type ja:InfModel ;
> ja:reasoner [ja:reasonerClass
> "org.mindswap.pellet.jena.PelletReasonerFactory" ;
> ] ;
> ja:baseModel <#baseGraph>
> .
> <#baseGraph> a ja:MemoryModel ;
> ja:content [ja:externalContent
> <file:///Users/maurobieg/semCMS/code/Fuseki-0.2.1-SNAPSHOT/sample.ttl>]
> .
actually, after some more fiddling i figured it out myself. what works for me
is the following bash script to start fuseki with ALL pellet-jars in the
classpath:
#!/bin/sh
PELLETLIBDIR="/opt/pellet-2.2.2/lib"
for jar in "$PELLETLIBDIR"/*.jar
do
THE_CLASSPATH=${THE_CLASSPATH}:${jar}
done
java -cp "./fuseki-sys.jar:${THE_CLASSPATH}" org.openjena.fuseki.FusekiCmd
--update --desc=./pellet.ttl /dataset
make the script executable and run it from inside the fuseki dir. may not be a
nice approach but works.
@Dave, i currently have only the following ontologies in my datastore:
rdf:
rdfs:
<http://xmlns.com/foaf/0.1/>
<http://www.w3.org/2003/06/sw-vocab-status/ns#>
<http://www.w3.org/2002/07/owl#>
<http://purl.org/dc/elements/1.1/>
<http://www.w3.org/2002/12/cal#>
and pellet is definitely faster than OWLMicroFBRuleReasoner. but what's
bothering me now is that pellet says everything is a owl:Thing but not infers
that it's also an rdf:Resource... i'll see..
best,
mauro
