at Santa Clara Convention Center on 22 Oct 2012 – 25 Oct 2012

at Sheraton Gateway Suites O’Hare on 22 May 2012 – 25 May 2012

at Santa Clara Convention Center on 17 Oct 2011 – 20 Oct 2011

at Crowne Plaza - Dallas on 11 Jun 2011

at Santa Clara Convention Center on 2 Nov 2010 – 4 Nov 2010

at Santa Clara Convention Center on 1 Nov 2010 – 4 Nov 2010

at University of Texas Dallas - Engineering and Computer Science South on 30 Jul 2010

at Sheraton Gateway Suites O'Hare Hotel, Rosemont, IL on 18 May 2010 – 21 May 2010