Rule-Representation Methods (min sup=2) Subset 2 {A,C}→>C PI Substring A C C BC→C B A C Latest Substring A C C C→C Subsequence Latest Subsequence 2021/1/262021/1/26 5 Rule-Representation Methods (min sup=2) ◼ Subset {A, C}→C ◼ Substring “BC”→C ◼ Latest Substring “C”→C ◼ Subsequence ◼ Latest Subsequence W1 W2 A1 A2 A3 P1 P2 A B C A C B C A C D C A C D C