9Agrawal R, Imielinski T, Swami A. Mining Association Rules Between Sets of Items in Large Database[C]//Proc. of the ACM SIGMOD'93. New York, USA: ACM Press, 1993: 207-216.
10Brin S, Motwani R, Silverstein C. Beyond Market: Generalizing Association Rules to Correlations[C]//Proc. of the ACM SIGMOD'97. Tucson, Arizona, USA: ACM Press, 1997: 265-276.