The goal of this competition is to detect the network intrusion attacks using several classifiers This is the data set used for The Third International Knowledge Discovery and Data Mining Tools Competition, which was held in conjunction with KDD-99 About Data : KDD Cup is the annual Data Mining and Knowledge Discovery competition organized by ACM Special Interest Group on Knowledge Discovery and Data Mining, the leading professional organization of data miners. Year to year archives including datasets, instructions, and winners are available for most years.