Machine learning protest at the G20 in Pittsburgh

http://dataphiles.blogspot.com/2009/09/machine-learning-protest-at-g20.html

More photos at:

http://www.flickr.com/photos/30686429@N07/sets/72157622330082619/



My favorites:

"Bayesians against discrimination"
"Support vector machines"
"MapReduce MapReuse MapRecycle - Green Data Processing"