- From: Tom Adams <tom@tucanatech.com>
- Date: Wed, 25 Aug 2004 10:46:18 -0400
- To: Libby Miller <Libby.Miller@bristol.ac.uk>
- Cc: Taowei David Wang <tw7@cs.umd.edu>, best-practice <public-swbp-wg@w3.org>
Hi Libby, Here's the information from Dave at the MIND lab on the work they are doing with Urchin & Kowari. I think it stands on it's own quite well, and can probably be a separate entry on the apps & demos page. Thanks! Tom Begin forwarded message: > From: Taowei David Wang <tw7@cs.umd.edu> > Date: 25 August 2004 10:38:56 AM > To: Tom Adams <tom@tucanatech.com> > Cc: Jim Hendler <hendler@cs.umd.edu> > Subject: Re: Urchin description for W3C SWBP&D WG > > Hi, Tom, > > Here's the description you have been waiting for. The first > paragraph briefly describes Urchin, and you are welcome to > supplement/modify it given that you have Urchin's latest descriptions > from > Nature. The second paragraph describes the Urchin-Kowari project and > its > current capabilities. We will be making a detailed documentation for > Urchin-Kowari in the near future, and will send you a link to it when > it > is done. > > Thanks, > > Dave > ---- > > Urchin-Kowari > University of Maryland, MIND Laboratory > Semantic Web and Agents Project > http://www.mindswap.org/ > > Urchin is a customizable RSS aggregator and filter written in Perl. It > consists of two main parts: a web-based user interface to query its > database and an administration unit that allows the control for > managing > channels in the database. Administrators can add RSS 0.9*, 1.0, and > 2.0 > channels to the Urchin, where items are converted into RDF and stored > in > its native mySQL database. Using the web interface, user can query the > database using Urchin-specific keywords, plaintext, or the RCQL query > language. Urchin can then display the results as several output > formats, > including RSS 1.0 and RSS 0.91 feeds. This aggregation allows each > user > to create a RSS feed tailored to the individual's interest from the > available channels in the database. In addition, Urchin is suitable > for > building a RSS portal service. > > The Urchin-Kowari project replaces the mySQL database with the > specialized > RDF triple store Kowari. This takes advantage of the fact that all > data > in Urchin are RDF statements and Kowari is a specialized RDF database. > Urchin and Kowari communicate via SOAP, and can be running on different > machines. This decoupling of interface and storage allows users the > freedom to access any available Kowari server on the Web. In > Urchin-Kowari, the core Urchin functionalities are preserved as much as > possible. The Web interface retains its look, but query syntax has > been > modified. Raw iTQL queries to the storage replace the RCQL queries. > The > many Urchin keywords are being developed. Administrative control of > the > channels is also preserved. > > The current implementation is written using Urchin 0.90 and Kowari > 1.0.5 > (pre-release, dated July 29, 2004). > > Urchin-Kowari demo frontend (under development): > http://bombadil.mindlab.umd.edu/cgi-bin/urchin > > Original Urchin info (now v. 0.92): > http://urchin.sourceforge.net/ > > Original Kowari info: > http://kowari.sourceforge.net/ > > Contact: Kendall Clark (kendall@monkeyfist.com), Taowei David Wang > (tw7@cs.umd.edu), Jay Banerjee (dbanerje@umd.edu) -- Tom Adams | Tucana Technologies, Inc. Support Engineer | Office: +1 703 871 5312 tom@tucanatech.com | Cell: +1 571 594 0847 http://www.tucanatech.com | Fax: +1 877 290 6687 ------------------------------------------------------
Received on Wednesday, 25 August 2004 14:46:22 UTC