Read yelp2018 dataset done! u_num: 31668, i_num: 38048
Load a pre-trained model
 UL AUC before unlearning: 0.5051
ACC AUC before unlearning: 0.8838
NDCG@20 before unlearning: 0.0277
Start phantom user assignment k-means!
Finish phantom user assignment k-means!
[RECUL] START TRAINING. CURRENT TIME: 0.01min.
[RECUL] PREPROCESS FINISHED. CURRENT TIME: 0.02min.
[RecUL] Epoch [1/2000], Loss: 3.5700, UL AUC: 0.8438, ACC AUC: 0.7915, ACC NDCG@20: 0.0276, Current time: 0.11min
[RecUL] Epoch [2/2000], Loss: 3.2976, UL AUC: 0.8424, ACC AUC: 0.8059, ACC NDCG@20: 0.0278, Current time: 0.19min
[RecUL] Epoch [3/2000], Loss: 3.2517, UL AUC: 0.8229, ACC AUC: 0.8075, ACC NDCG@20: 0.0278, Current time: 0.28min
[RecUL] Epoch [4/2000], Loss: 3.2212, UL AUC: 0.8169, ACC AUC: 0.8085, ACC NDCG@20: 0.0277, Current time: 0.36min
[RecUL] Epoch [5/2000], Loss: 3.2014, UL AUC: 0.7981, ACC AUC: 0.8157, ACC NDCG@20: 0.0277, Current time: 0.44min
[RecUL] Epoch [6/2000], Loss: 3.1790, UL AUC: 0.8085, ACC AUC: 0.8102, ACC NDCG@20: 0.0275, Current time: 0.52min
[RecUL] Epoch [7/2000], Loss: 3.1671, UL AUC: 0.8027, ACC AUC: 0.8020, ACC NDCG@20: 0.0275, Current time: 0.61min
[RecUL] Epoch [8/2000], Loss: 3.1633, UL AUC: 0.7887, ACC AUC: 0.8046, ACC NDCG@20: 0.0274, Current time: 0.69min
[RecUL] Epoch [9/2000], Loss: 3.1366, UL AUC: 0.7930, ACC AUC: 0.7978, ACC NDCG@20: 0.0275, Current time: 0.77min
[RecUL] Epoch [10/2000], Loss: 3.1447, UL AUC: 0.7993, ACC AUC: 0.7897, ACC NDCG@20: 0.0275, Current time: 0.85min
[RecUL] Epoch [11/2000], Loss: 3.1350, UL AUC: 0.7894, ACC AUC: 0.7978, ACC NDCG@20: 0.0275, Current time: 0.93min
Best UL AUC: 0.8438, Best epoch: 0, total time: 1.01min
[RECUL] TRAINING FINISHED. TOTAL TIME: 1.02min.
Precision@20: 0.0162; Recall@20: 0.0356;  NDCG@20: 0.0277;  
Precision@50: 0.0144; Recall@50: 0.0785;  NDCG@50: 0.0438;  
Precision@100: 0.0126; Recall@100: 0.1363;  NDCG@100: 0.0627;  
Before unlearning: ACC AUC: 0.8838, UL AUC: 0.5051, ACC NDCG@20: 0.0277
After unlearning: ACC AUC: 0.7915, UL AUC: 0.8438, ACC NDCG@20: 0.0277
