Re: best practice in assigning URIs to individuals

Hello Milorad, you should not create URIs in other peoples namespaces without their permission. So best practice would be "d1:R rdf:type d2:C2". Regards, Michael Brunnbauer On Tue, Aug 06, 2013 at 06:00:27PM -0700, Milorad Tosic wrote: > Hi, > > The question may be somewhat out of focus of t

best practice in assigning URIs to individuals

Hi, The question may be somewhat out of focus of the group but since we have here a number of competent people I dared to post the question here. Let us given an ontology O1 under development that has assigned domain "d1:". So, we have ownership of O1. For development of the O1 we find useful

Re: Poor performance with OFFSET

No you can't create a index that pre-computes the sorting of some particular facet of your data. Btw if you are using TDB then there shouldn't be any need to use an ORDER BY to get paging since TDB will for any given query run multiple times always return the data in a predictable fashion due to h

Re: Jena Text Search Help

Ok, since I already have the TDB built, it seems the best plan would be to create an assembler file and then use the jena.textindexes application. Sorry, these are the namespaces: xmlns:mms="http://rdf.cdisc.org/mms#"; xmlns="http://rdf.cdisc.org/sdtm-1-2/std#"; xmlns:rdf="http://www.w

Re: Poor performance with OFFSET

Using LIMIT/OFFSET sounds like paging, to me. And a usual requirement of paging is to order data before paging. Ordering can be for example "order alphabetically mmx:Objects by their label". So the question is: can I create an index that precomputes "the sorting of labels of mmx:Objects". Andy s a

Re: Poor performance with OFFSET

On 05/08/2013 21:02, Olivier Rossel wrote: Please note that such a query does not sort mmx:Objects in the inner select. I have no idea of the performances drop if you add that requirement. Using my data: quite a lot. For a sample offset of 5, it increases from 380ms without, to 1600ms with o

Re: jena framework performance

OK thnks, I see that Jena TDB/SDB won't fit for my needs. Is it possible to use Jena with 4store, i.e. take advantage of 4store performance and scalability and Jena's API ? Martin On 08/06/2013 01:18 PM, Andy Seaborne wrote: On 05/08/13 23:01, Dave Reynolds wrote: On 05/08/13 14:15, Martin V

Re: Help required to load dbpedia data into Jena

On 06/08/13 08:59, Rose Beck wrote: Does Jena 2.10.1 also include SDB. Because I also want to install Jena SDB. You can download the latest SDB and see, or look in the POM: http://central.maven.org/maven2/org/apache/jena/jena-sdb/1.3.6/jena-sdb-1.3.6.pom to find the versions. Andy

Re: Is the exceptions states that my datastore is corrupted ?

On 06/08/13 06:11, nadav hoze wrote: please help, we got this exception while trying to pull data from our datstore in production: com.hp.hpl.jena.tdb.index.bplustree.BPTreeException: Record [3a86470d] not in this page: BPTreeRecords[id=140147, link=140164

Re: jena framework performance

On 05/08/13 23:01, Dave Reynolds wrote: On 05/08/13 14:15, Martin Vassilev wrote: Hi all, I would like to ask you a few questions about Jena. I read in the documentation that *Note:* Although OWL version 1.1 is now a W3C recommendation, Jena's support for OWL 1.1 features is limited I assume

Re: Jena Text Search Help

On 05/08/13 21:49, Brad Moran wrote: I have an existing Jena TDB based on this example RDF: ... I have compiled a Jena TDB based on several of these RDF files so it is a large TDB and have several SPARQL queries that work as desired. I am now trying to implement a full text search on this TDB

Stats.opt and query optimization

Hi, I got a question about how the query optimizer decides which triple pattern to evaluate first. My basic query is: SELECT * WHERE { ?pat a ec:Patient . ?pat ec:Has_Disease ?Disease . ?Disease a ?DiseaseType . ?DiseaseType ec:descendantOf nci:Diseases_and_Disorders . } My stats.opt f

Re: Access list values in rules

ok, its now more clear for me. I'll try to setup my reasoner with the pre-compilation of the list rules. Thank you Dave. Igor - Ursprüngliche Message - > Von: Dave Reynolds > An: users@jena.apache.org > CC: > Gesendet: 9:44 Dienstag, 6.August 2013 > Betreff: Re: Access list values in r

Re: Help required to load dbpedia data into Jena

Does Jena 2.10.1 also include SDB. Because I also want to install Jena SDB. On Tue, Aug 6, 2013 at 3:13 AM, Andy Seaborne wrote: > On 05/08/13 22:14, Rose Beck wrote: > >> I installed Jena using >> http://www.nopash.com/2012/04/**installing-jena-tdb-and-**joseki-on.html

Re: Access list values in rules

On 06/08/13 08:18, Igor Brussilowski wrote: - Ursprüngliche Message - Von: Dave Reynolds An: users@jena.apache.org CC: Gesendet: 0:15 Dienstag, 6.August 2013 Betreff: Re: Access list values in rules On 05/08/13 21:41, Igor Brussilowski wrote: Hi, thank you for reply. I sure know al

Re: Access list values in rules

- Ursprüngliche Message - > Von: Dave Reynolds > An: users@jena.apache.org > CC: > Gesendet: 0:15 Dienstag, 6.August 2013 > Betreff: Re: Access list values in rules > > On 05/08/13 21:41, Igor Brussilowski wrote: >> Hi, thank you for reply. >> >> I sure know all these builtin function