Hi,
I did not understand if/how IBM is using Jena and if so which parts/components
of Jena they are using. It would be interesting to know.
x3.5 times faster for something which is x{multiple of ten} {adjective}er
isn't bad at all. :-)
After graduation, we should talk on how to make TDB x10 faster?! ;-)
Thanks Andy for pointing us at it,
Paolo
Andy Seaborne wrote:
> http://www.theregister.co.uk/2012/04/03/ibm_db2_10_infosphere_10/
>
> ------------------------------------------
> The Apache Jena project is a Java framework for building semantic web
> applications based on graph data, and Apache Fuseki is the SPARQL server
> that processes the SPARQL queries and spits out the relationships so
> they can be visualized in some fashion. (Cray's new Urika system,
> announced in March, runs this Apache graph analysis stack on top of a
> massively multithreaded server.)
>
> Just like they imported objects and XML into the DB2 database so they
> could be indexed and processed natively, IBM is now bringing in the RDF
> format so that graph triples can be stored natively.
>
> As IBM explains it – not strictly grammatically, to some English majors
> – a triple has a noun, a verb, and a predicate, such as Tim (noun) has
> won (verb) the MegaMillions lottery (predicate). You can then query all
> aspects of a set of triples to see who else has won MegaMillions – a
> short list, in this case.
>
> In tests among DB2 10.1 early adopters, applications that used these
> graph triples ran about 3.5 times faster on DB2 than on the Jena TDB
> data store (short for triple database, presumably) with SPARQL 1.0
> hitting it for queries.
> ------------------------------------------
>
> (Dear Reg, TDB does not stand for "triple database")
>
> Andy
