The Complexity of Finding Optimal Subgraphs to Represent Spatial Correlation - Enright, Jessica; Lee, Duncan; Meeks, Kitty; Pettersson, William; Sylvester, John; Goos, Gerhard, Founding Editor; Hartmanis, Juris, Founding Editor; Bertino, Elisa, Editorial Board Member; Gao, Wen, Editorial Board Member; Steffen, Bernhard, Editorial Board Member; Woeginger, Gerhard, Editorial Board Member; Yung, Moti, Editorial Board Member; et al. (Combinatorial Optimization and Applications : 15th International Conference, COCOA 2021, Tianjin, China, December 17–19, 2021, Proceedings, 2021)