Abstract :
Acknowledging the relevance of developments in the open source software community, the ACM International Conference on Multimedia (or ACM MM) has held its Open Source Software Competition every year since 2004. This competition has steadily grown since its inception, from two finalist entries in 2004 to 14 in 2011. This article reports on the Open Source Competition at ACM MM 2011 and the conference\´s associated panel discussion. To help communicate their intention and impact, videos of the winning project (OpenIMAJ and ImageTerrier) and the two honorable mentions (ClassX and OpenCast) are included here as Web extras. Video 1: "ClassX" by Sherif A. Halawa, Bernd Girod, and Derek Pang (Stanford University). Video 2: "OpenIMAJ/ImageTerrier" by Jonathon Hare, Sina Samangooei, and David Dupplaw (University of Southampton, UK). Video 3: "OpenCast" by Michelle Ziegmann (University of California at Berkeley) and Olaf A. Schulte (ETH Zurich).
