| Conference | Paper due date | Conference Date | Location |
| AAAI | January 22/23/25/30 | July 13-17 | Chicago, Illinois |
| ICML | Feb 8 | July 5-9 | Helsinki, Finland |
| COLT | Feb 20 | July 9-12 | Helsinki, Finland |
| KDD | Feb 23/29 | August 24-27 | Las Vegas, Nevada |
| UAI | Feb 27/Feb 29 | July 9-12 | Helsinki, Finland |
Helsinki is a fun place to visit.
Added them here too: http://upcoming.yahoo.com/tag/machinelearning/
And here
http://www.wikicfp.com/cfp/call?conference=machine%20learning