Important date Abstract Submission Deadline Oral presentation: Dec. 29, 2010 -> Jan. 15, 2011 Poster presentation: Jan. 15, 2011 -> Jan. 31, 2011 Notice of Acceptance Jan. 31, 2011 Full Length Paper Submission Deadline Mar. 15, 2011 -> Apr. 1, 2011 Notice of Acceptance Mar. 25, 2011 Early registration Mar. 31, 2011 -> Apr. 15, 2011