[1]College of Computer and Information,Hohai University,Nanjing 211100,China;
[1]College of Computer and Information,Hohai University,Nanjing 211100,China;
[1]College of Computer and Information,Hohai University,Nanjing 211100,China;
[1]College of Computer and Information,Hohai University,Nanjing 211100,China;
Spatial-temporal data; Event detection; Mutlivariate water quality data; Data analysis; Connected dominating set;