2000年台湾大专题...英语阅读输入输出专场..我只能说很强势.. M. Frequent Subsets Problem The frequent subset problem is defined as follows. Suppose UU={1, 2,\ldots…,N} is the universe, and S_{1}S1, S_{2}S2,\ldots…,S_{M}SM are MM sets over UU. Given a positive constan…