Conference Quality

The overabundance of conferences makes it absolutely necessary to prune and submit selectively. Based on 2007 Australian Ranking of ICT Conferences based on data collected over five years and Computer Science Conference Ranking which employs the Estimated Impact of Conference (EIC), I have listed only the places relevant to robotics and/or machine learning. Based on | [1], [2], [3], I have tried to distill all available ranking information.

Conference	EIC	Australian Ranking	Acceptance Rate in Year
AAAI: American Association for AI National Conference	0.99	A+	24.2% in 2008
NIPS: Neural Information Processing Systems	0.98	A+	24% in 2006
KDD: Knowledge Discovery and Data Mining	0.97	A+	23% in 2006
IJCAI: Intl Joint Conf on AI	0.96	A+	18% in 2005
ICML: Intl Conf on Machine Learning	0.95	A+	27% in 2008
UAI: Conference on Uncertainty in AI	0.91	A+	32% in 2006
AAMAS: Intl Conf on Autonomous Agents and Multi-Agent Systems	0.76	A+	36% in 2008
ICNN/IJCNN: Intl (Joint) Conference on Neural Networks	0.76	A	33% in 2006
ECML: European Conf on Machine Learning	0.76	A	19.70% in 2005
ICPR: Intl Conf on Pattern Recognition	0.76	A	62.8% in 2006
ECAI: European Conf on AI	0.76	A	26% in 2006
ICDM: IEEE International Conference on Data Mining	0.73	A+	19% in 2007
PKDD: Principles of Data Mining and Knowledge Discovery	0.62	A
ICRA: IEEE Intl Conf on Robotics and Automation	0.60	B	38% in 2006
ICONIP: Intl Conf on Neural Information Processing	0.56	A	33% in 2006
R:SS: Robotics: Science & Systems	0.53	A+	29% in 2007
SDM: SIAM Intl Conference on Data Mining	0.51	A	16% in 2006
IROS: International Conference on Intelligent Robot Systems	N.A.	B

Unfortunately, these statistics are NOT as solid as the ones of the jounal impact factors. However, a robotics or machine learning conference which is not on this list will most likely not be considered "refereed publications" when you apply for jobs.