The International Pure Data Convention (Pd-con) has been around for a few years. The first one was in 2004. Besides the presentation of academic papers, there were performances, demonstrations, and exhibitions in the convention. The Pure Data website maintains the documentation for each of the conventions.
The Austrian association Pd~graz ,http://pd-graz.mur.at, organized the First International Pure Data Convention in 2004. Documentation of the convention can be accessed at http://puredata.info/community/conventions/convention04.
In 2007, the 2nd International Pure Data Convention was held in Montreal, Canada. The information is available at http://pure-data.artengine.ca/en/.
In 2009, the 3rd International Pure Data Convention was in Sao Paulo, Brazil. In the Pure Data website, http://puredata.info/community/conventions/convention09/, you can find the complete documentation.
In 2011, the 4th International Pure Data Convention took place in Weimar, Germany. The documentation is now available at the website http://www.uni-weimar.de/medien/wiki/PDCON:Start.