Owlgres 0.1: First Release
by Markus Stocker
We are proud to announce the first release, version 0.1 (alpha), of Owlgres, a very scalable OWL reasoner that uses Postgres. It implements DL-Lite, a tractable profile of the upcoming OWL 2 standard. Owlgres supports consistency checking and conjunctive query reasoning services—the latter via SPARQL-DL.
Downloads and documentation can be found at the Owlgres site. For bug reports, feel free to open a ticket on our issue tracking site for Owlgres, which also summarizes the first steps with Owlgres on the Wiki page. There’s a mailing list for discussion and support.
Owlgres is dual-licensed; for open source projects, it’s available under the AGPL v.3. For commercial projects, commercial support licenses are available.
We’d love feedback on Owlgres and encourage people to try it out, play with it, and report bugs, issues, and ideas.
May 7th, 2008 at 4:58 pm
Congrats on releasing! Good show!
May 8th, 2008 at 2:53 am
Woo hoo :)
May 8th, 2008 at 10:19 am
Congratulations on the release! Good luck.
May 12th, 2008 at 1:06 pm
[...] Owlgres 0.1 – OWL reasoner using Postgres [...]
May 14th, 2008 at 1:45 pm
Are there any plans to show off this tool, say by putting up a SPARQL endpoint that loads as much as possible of the DBpedia core and extended datasets. Then people can see for themselves the inferencing that is possible, compared say to other DBpedia SPARQL endpoints.
Thanks
Michael
May 14th, 2008 at 6:45 pm
The download comes with some sample data, and we’ve been using Wikipedia infoboxes—around 23M triples—for development.
We will put up a public endpoint for people to play with after the 0.2 release, when we support more of (non-inference) SPARQL.
That said, if you have a working Java toolchain and Postgresql (or Derby), it’s pretty trivial to download, configure, and play with via the included command-line tools.