Computer & Information Science Department, The University of Mississippi, University, MS, USA. dwilkins@cs.olemiss.edu|Computer & Information Science Department, The University of Mississippi, University, MS, USA. dwilkins@cs.olemiss.edu|Computer & Information Science Department, The University of Mississippi, University, MS, USA. dwilkins@cs.olemiss.edu|Computer & Information Science Department, The University of Mississippi, University, MS, USA. dwilkins@cs.olemiss.edu|Computer & Information Science Department, The University of Mississippi, University, MS, USA. dwilkins@cs.olemiss.edu|Computer & Information Science Department, The University of Mississippi, University, MS, USA. dwilkins@cs.olemiss.edu