In order to ensure that your paper is included in the conference proceedings and appears in the IEEE Xplore, at least one of the authors MUST register by May 15, 2015 at the full rate and PRESENT THE PAPER AT TRAC 2015. No show papers will be removed from IEEE Xplore. The registration deadline is May 15, 2015 for papers to be included in the IEEE Xplore. One author registration covers up to two papers. Failure to register by the above deadline will result in your paper NOT being included in the IEEE Xplore library.