GREAT08 Challenge 1 March - 30 December 2008

Causality challenge Pot-luck (NIPS 2008): bring your own problem Challenge 1 September - 12 November 2008

Large Scale Learning Challenge Challenge 27 February - 27 June 2008

Human-machine comparisons of consonant recognition in noise Challenge 1 December 2007 - 31 March 2008

Letter-to-Phoneme Conversion Challenge 1 February 2006 - 31 January 2007