Department of Computer Science, The University of Iowa, Iowa City, IA 52242, USA. sanmitra-bhattacharya@uiowa.edu|Department of Computer Science, The University of Iowa, Iowa City, IA 52242, USA. sanmitra-bhattacharya@uiowa.edu|Department of Computer Science, The University of Iowa, Iowa City, IA 52242, USA. sanmitra-bhattacharya@uiowa.edu