Read gowalla dataset done! u_num: 29858, i_num: 40981
Load a pre-trained model
 UL AUC before unlearning: 0.4954
ACC AUC before unlearning: 0.8977
NDCG@20 before unlearning: 0.0814
Start phantom user assignment k-means!
Finish phantom user assignment k-means!
[RECUL] START TRAINING. CURRENT TIME: 0.00min.
[RECUL] PREPROCESS FINISHED. CURRENT TIME: 0.02min.
[RecUL] Epoch [1/2000], Loss: 3.6145, UL AUC: 0.9341, ACC AUC: 0.7950, ACC NDCG@20: 0.0809, Current time: 0.09min
[RecUL] Epoch [2/2000], Loss: 3.3115, UL AUC: 0.9113, ACC AUC: 0.8319, ACC NDCG@20: 0.0810, Current time: 0.15min
[RecUL] Epoch [3/2000], Loss: 3.1365, UL AUC: 0.8964, ACC AUC: 0.8453, ACC NDCG@20: 0.0813, Current time: 0.21min
[RecUL] Epoch [4/2000], Loss: 3.0734, UL AUC: 0.9124, ACC AUC: 0.8208, ACC NDCG@20: 0.0814, Current time: 0.26min
[RecUL] Epoch [5/2000], Loss: 3.0492, UL AUC: 0.8950, ACC AUC: 0.8275, ACC NDCG@20: 0.0814, Current time: 0.32min
[RecUL] Epoch [6/2000], Loss: 3.0210, UL AUC: 0.8889, ACC AUC: 0.8259, ACC NDCG@20: 0.0814, Current time: 0.38min
[RecUL] Epoch [7/2000], Loss: 3.0078, UL AUC: 0.8899, ACC AUC: 0.8249, ACC NDCG@20: 0.0814, Current time: 0.44min
[RecUL] Epoch [8/2000], Loss: 2.9717, UL AUC: 0.8919, ACC AUC: 0.8198, ACC NDCG@20: 0.0812, Current time: 0.50min
[RecUL] Epoch [9/2000], Loss: 2.9823, UL AUC: 0.8960, ACC AUC: 0.8135, ACC NDCG@20: 0.0807, Current time: 0.56min
[RecUL] Epoch [10/2000], Loss: 2.9586, UL AUC: 0.8747, ACC AUC: 0.8241, ACC NDCG@20: 0.0804, Current time: 0.62min
[RecUL] Epoch [11/2000], Loss: 2.9665, UL AUC: 0.8918, ACC AUC: 0.8130, ACC NDCG@20: 0.0805, Current time: 0.68min
Best UL AUC: 0.9341, Best epoch: 0, total time: 0.73min
[RECUL] TRAINING FINISHED. TOTAL TIME: 0.74min.
Precision@20: 0.0338; Recall@20: 0.1123;  NDCG@20: 0.0811;  
Precision@50: 0.0250; Recall@50: 0.2022;  NDCG@50: 0.1102;  
Precision@100: 0.0189; Recall@100: 0.2991;  NDCG@100: 0.1374;  
Before unlearning: ACC AUC: 0.8977, UL AUC: 0.4954, ACC NDCG@20: 0.0814
After unlearning: ACC AUC: 0.7950, UL AUC: 0.9341, ACC NDCG@20: 0.0811
