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: 0.03min.
[RecUL] Epoch [1/2000], Loss: 3.5671, UL AUC: 0.8563, ACC AUC: 0.7901, ACC NDCG@20: 0.0277, Current time: 0.12min
[RecUL] Epoch [2/2000], Loss: 3.2795, UL AUC: 0.8252, ACC AUC: 0.8122, ACC NDCG@20: 0.0277, Current time: 0.21min
[RecUL] Epoch [3/2000], Loss: 3.2534, UL AUC: 0.8143, ACC AUC: 0.8064, ACC NDCG@20: 0.0277, Current time: 0.30min
[RecUL] Epoch [4/2000], Loss: 3.2244, UL AUC: 0.8188, ACC AUC: 0.7998, ACC NDCG@20: 0.0278, Current time: 0.38min
[RecUL] Epoch [5/2000], Loss: 3.2156, UL AUC: 0.8171, ACC AUC: 0.7909, ACC NDCG@20: 0.0277, Current time: 0.46min
[RecUL] Epoch [6/2000], Loss: 3.1883, UL AUC: 0.8178, ACC AUC: 0.7984, ACC NDCG@20: 0.0277, Current time: 0.55min
[RecUL] Epoch [7/2000], Loss: 3.1716, UL AUC: 0.8102, ACC AUC: 0.7984, ACC NDCG@20: 0.0276, Current time: 0.63min
[RecUL] Epoch [8/2000], Loss: 3.1723, UL AUC: 0.7910, ACC AUC: 0.8015, ACC NDCG@20: 0.0276, Current time: 0.71min
[RecUL] Epoch [9/2000], Loss: 3.1554, UL AUC: 0.8146, ACC AUC: 0.7774, ACC NDCG@20: 0.0278, Current time: 0.79min
[RecUL] Epoch [10/2000], Loss: 3.1525, UL AUC: 0.7850, ACC AUC: 0.7973, ACC NDCG@20: 0.0278, Current time: 0.87min
[RecUL] Epoch [11/2000], Loss: 3.1397, UL AUC: 0.8036, ACC AUC: 0.7896, ACC NDCG@20: 0.0277, Current time: 0.95min
Best UL AUC: 0.8563, Best epoch: 0, total time: 1.03min
[RECUL] TRAINING FINISHED. TOTAL TIME: 1.04min.
Precision@20: 0.0162; Recall@20: 0.0357;  NDCG@20: 0.0277;  
Precision@50: 0.0144; Recall@50: 0.0786;  NDCG@50: 0.0439;  
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: 0.7901, UL AUC: 0.8563, ACC NDCG@20: 0.0277
