Beyond Market Baskets: Generalizing Association Rules to ... - Springer

BEYOND MARKET BASKETS 41 Definition 2. We say there is an association rule i 1)i 2 if 1. i 1 and i 2 occur together in at least s% of the nbaskets (the support); 2. and, of all the baskets containing i 1, at least c% also contain i 2 (the confidence). This definition extends easily to I)J, where Iand Jare disjoint sets of items instead of single items. ................
................