This report is one of five reports that were based on the MINDS workshops, led by Donna Harman (NIST) and sponsored by Heather McCallum-Bayliss of the Disruptive Technology Office of the Office of the Director of National Intelligence’s Office of Science and Technology (ODNI/ADDNI/S&T/DTO).   To find the rest of the reports, and an executive overview, please see http://www.itl.nist.gov/iaui/894.02/minds.html.