Link to prior jena-dev discussion. http://tech.groups.yahoo.com/group/jena-dev/message/33663
Sanjay On Oct 28, 2011, at 5:56 PM, Sanjay Venkateswarulu <[email protected]> wrote: > Hi Miso > > One other idea that was discussed on jena-dev earlier (which i cannot seem to > find) was to use Sparql queries to represent events, create an inverted index > of the predicates mentioned in the query, and register a model listener for > changes to triples. The listener can then look up the inverted index and run > the subset of sparql queries to generate events. Further optimizations are > possible to improve upon the inverted index over predicates using information > from sparql algebra. > > The approach maintains the expressivity and performance of sparql and is a > starting point for research in my opinion. > > Regards, > Sanjay > > On Oct 27, 2011, at 3:55 PM, Miso Tomovski <[email protected]> wrote: > >> Thanks a lot . It is what I needed most. >> >> >> >> ________________________________ >> From: Paolo Castagna <[email protected]> >> To: [email protected] >> Sent: Thursday, October 27, 2011 9:33 PM >> Subject: Re: Examples >> >> Paolo Castagna wrote: >>> Miso Tomovski wrote: >>>> Hello jena users, I am working on a graduation project in computer science >>>> and technology, on a subject - Social networks powered by Semantic Web , >>>> using java and mysql. I am quite new in Jena, and my question is, where >>>> can I find some web app examples written in java, or social network >>>> ontologies, regarding my subject. Particularly I am interested in using >>>> the Jena API with MySQL, dealing with performance, concurrency, >>>> scalability issues. I've spent some time looking on the internet, but >>>> found nothing in specific. >>>> Thanks a lot in advance. Best regards, >>>> Miso >>>> >>> >>> Hi Miso, >>> welcome to jena-users, you found the right mailing list. >>> >>> Not a complete answer to your questions, however... >>> >>> The documentation about Jena is here: >>> http://incubator.apache.org/jena/ >>> >>> You might find Fuseki (which uses TDB) an useful alternative >>> instead of SDB with MySQL: http://openjena.org/wiki/Fuseki >>> >>> Make sure you do not miss FOAF and SIOC vocabularies, here: >>> http://schemapedia.com/tags/social >> >> Ops... forgot the homepages: >> >> - http://www.foaf-project.org/ >> - http://sioc-project.org/ >> >> ... and: >> >> - http://developers.facebook.com/docs/opengraph/ >> >> >>> >>> Paolo >>> >>>
