Department of Computer Science, Department of Biology, and Department of Statistics, Purdue University, West Lafayette, IN 47907, USA.|Department of Computer Science, Department of Biology, and Department of Statistics, Purdue University, West Lafayette, IN 47907, USA.|Department of Computer Science, Department of Biology, and Department of Statistics, Purdue University, West Lafayette, IN 47907, USA.|Department of Computer Science, Department of Biology, and Department of Statistics, Purdue University, West Lafayette, IN 47907, USA.