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: 3.5632, UL AUC: 0.8512, ACC AUC: 0.7888, ACC NDCG@20: 0.0276, Current time: 0.11min
[RecUL] Epoch [2/2000], Loss: 3.2901, UL AUC: 0.8341, ACC AUC: 0.8102, ACC NDCG@20: 0.0276, Current time: 0.19min
[RecUL] Epoch [3/2000], Loss: 3.2542, UL AUC: 0.8089, ACC AUC: 0.8114, ACC NDCG@20: 0.0277, Current time: 0.28min
[RecUL] Epoch [4/2000], Loss: 3.2119, UL AUC: 0.8201, ACC AUC: 0.8019, ACC NDCG@20: 0.0278, Current time: 0.36min
[RecUL] Epoch [5/2000], Loss: 3.2016, UL AUC: 0.8093, ACC AUC: 0.8118, ACC NDCG@20: 0.0277, Current time: 0.44min
[RecUL] Epoch [6/2000], Loss: 3.1743, UL AUC: 0.8049, ACC AUC: 0.8108, ACC NDCG@20: 0.0276, Current time: 0.52min
[RecUL] Epoch [7/2000], Loss: 3.1737, UL AUC: 0.7907, ACC AUC: 0.8058, ACC NDCG@20: 0.0275, Current time: 0.60min
[RecUL] Epoch [8/2000], Loss: 3.1592, UL AUC: 0.7947, ACC AUC: 0.7984, ACC NDCG@20: 0.0276, Current time: 0.68min
[RecUL] Epoch [9/2000], Loss: 3.1402, UL AUC: 0.7878, ACC AUC: 0.7931, ACC NDCG@20: 0.0276, Current time: 0.76min
[RecUL] Epoch [10/2000], Loss: 3.1387, UL AUC: 0.8019, ACC AUC: 0.7864, ACC NDCG@20: 0.0275, Current time: 0.84min
[RecUL] Epoch [11/2000], Loss: 3.1356, UL AUC: 0.7960, ACC AUC: 0.7901, ACC NDCG@20: 0.0275, Current time: 0.92min
Best UL AUC: 0.8512, Best epoch: 0, total time: 1.00min
[RECUL] TRAINING FINISHED. TOTAL TIME: 1.01min.
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: 0.1364;  NDCG@100: 0.0627;  
Before unlearning: ACC AUC: 0.8838, UL AUC: 0.5051, ACC NDCG@20: 0.0277
After unlearning: ACC AUC: 0.7888, UL AUC: 0.8512, ACC NDCG@20: 0.0277
