Technical papers * Pre-submission: March 12, 2004 (closed) * Submission: March 19, 2004 (closed) * Notification: May 17, 2004 (closed) * Final version: July 25, 2004 (closed) Submissions of proposals * Workshops: March 19, 2004 (closed) * Tutorials: April 2, 2004 (closed) * Demonstrations: July 2, 2004 (closed) Conference * Tutorials: October 24, 2004 * Workshops: October 25, 2004 * Demonstrations: October 26-28, 2004 * Papers: October 26-28, 2004