1 Achla Marathe, Jiangzhuo Chen, and Stephen Eubank are with the Virginia Bioinformatics Institute, Virginia Tech, Blacksburg. Achla Marathe is also with the Department of Agricultural and Applied Economics and Stephen Eubank is also with the Department of Population Health Sciences, Virginia Tech. Shaojuan Liao is with Freddie Mac, Washington, DC. Yifei Ma is with Teradata.