FP-tree Construction null After reading TID=1: A:1 TID Items 1 (A,B) 2 (B,C,D) B:1○ 3 (A,C,D,E) 4 (A,D,E) After reading TID=2: 5 (A,B,C} null 6 (A,B,C,D) A:I B:l 7 {B,C} 8 (A,B,C) 9 (A,B,D) B:1 C:1 10 B.C,E) D:1 4 Copyright 2019 by Xiaoyu Li.4 Copyright © 2019 by Xiaoyu Li. FP-tree Construction