FOSDEM: Free and Open Source Software Developers’ European Meeting
FOSDEM is probably the largest free and non-commercial open source event, taking place in Brussels, Belgium on 4 and 5 February 2012. Being a developer-oriented conference, it is the open source communities and developers that make it what it is. (emphasis added)
The first round call for:
is still open (as of 11/11/11).
A second round call for short talks is forthcoming.
Developer rooms for FOSDEM 2012 include one on graph processing.