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: 3.6167, UL AUC: 0.9335, ACC AUC: 0.8018, ACC NDCG@20: 0.0811, Current time: 0.09min
[RecUL] Epoch [2/2000], Loss: 3.3033, UL AUC: 0.9123, ACC AUC: 0.8336, ACC NDCG@20: 0.0814, Current time: 0.15min
[RecUL] Epoch [3/2000], Loss: 3.1326, UL AUC: 0.9024, ACC AUC: 0.8412, ACC NDCG@20: 0.0818, Current time: 0.21min
[RecUL] Epoch [4/2000], Loss: 3.0652, UL AUC: 0.9170, ACC AUC: 0.8181, ACC NDCG@20: 0.0820, Current time: 0.27min
[RecUL] Epoch [5/2000], Loss: 3.0428, UL AUC: 0.9034, ACC AUC: 0.8257, ACC NDCG@20: 0.0821, Current time: 0.33min
[RecUL] Epoch [6/2000], Loss: 3.0104, UL AUC: 0.8946, ACC AUC: 0.8321, ACC NDCG@20: 0.0822, Current time: 0.39min
[RecUL] Epoch [7/2000], Loss: 2.9993, UL AUC: 0.8925, ACC AUC: 0.8248, ACC NDCG@20: 0.0820, Current time: 0.45min
[RecUL] Epoch [8/2000], Loss: 2.9814, UL AUC: 0.8869, ACC AUC: 0.8249, ACC NDCG@20: 0.0818, Current time: 0.51min
[RecUL] Epoch [9/2000], Loss: 2.9673, UL AUC: 0.8809, ACC AUC: 0.8298, ACC NDCG@20: 0.0820, Current time: 0.57min
[RecUL] Epoch [10/2000], Loss: 2.9620, UL AUC: 0.8871, ACC AUC: 0.8189, ACC NDCG@20: 0.0818, Current time: 0.63min
[RecUL] Epoch [11/2000], Loss: 2.9481, UL AUC: 0.8928, ACC AUC: 0.8138, ACC NDCG@20: 0.0817, Current time: 0.69min
Best UL AUC: 0.9335, Best epoch: 0, total time: 0.75min
[RECUL] TRAINING FINISHED. TOTAL TIME: 0.75min.
Precision@20: 0.0339; Recall@20: 0.1127;  NDCG@20: 0.0813;  
Precision@50: 0.0250; Recall@50: 0.2022;  NDCG@50: 0.1103;  
Precision@100: 0.0189; Recall@100: 0.2992;  NDCG@100: 0.1375;  
Before unlearning: ACC AUC: 0.8977, UL AUC: 0.4954, ACC NDCG@20: 0.0814
After unlearning: ACC AUC: 0.8018, UL AUC: 0.9335, ACC NDCG@20: 0.0813
