An Ontopia/Joomla integration

At TMRA 2010 a team of Czech researchers at the University of Economics in Prague presented their integration of Ontopia with the Joomla! CMS. Joomla is written in PHP, so they used the TMRAP web service to invoke tolog queries on the Ontopia server, and then present the results with XSLT. They have a UI for managing this, and even a framework for building user-friendly tolog query builders.

For more information, see the presentation page, which has the full paper and the slides. (Later, it will also have a video of the presentation.)

Using Ontopia in PHP

Jan Schreiber has written an excellent blog post on accessing Ontopia from PHP, which shows how you can use the Java TMAPI implementation in PHP or alternatively run a tolog query from PHP.

As Jan pointed out in private conversation, there is probably a fair bit of overhead in calling Java classes from PHP in this way, so running tolog queries is probably the most efficient way to do this, since then all the heavy lifting happens inside the JVM.