Department of Computer Science and Operations Research, North Dakota State University, Fargo, ND 58105, USA. anne.denton@ndsu.edu|Department of Computer Science and Operations Research, North Dakota State University, Fargo, ND 58105, USA. anne.denton@ndsu.edu|Department of Computer Science and Operations Research, North Dakota State University, Fargo, ND 58105, USA. anne.denton@ndsu.edu|Department of Computer Science and Operations Research, North Dakota State University, Fargo, ND 58105, USA. anne.denton@ndsu.edu|Department of Computer Science and Operations Research, North Dakota State University, Fargo, ND 58105, USA. anne.denton@ndsu.edu