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
[RECUL] START TRAINING. CURRENT TIME: 0.00min.
[RECUL] PREPROCESS FINISHED. CURRENT TIME: 0.01min.
[RecUL] Epoch [1/2000], Loss: 2.2878, UL AUC: 0.9288, ACC AUC: 0.8069, ACC NDCG@20: 0.0812, Current time: 0.08min
[RecUL] Epoch [2/2000], Loss: 1.9681, UL AUC: 0.9128, ACC AUC: 0.8308, ACC NDCG@20: 0.0815, Current time: 0.14min
[RecUL] Epoch [3/2000], Loss: 1.8020, UL AUC: 0.8993, ACC AUC: 0.8450, ACC NDCG@20: 0.0820, Current time: 0.20min
[RecUL] Epoch [4/2000], Loss: 1.7434, UL AUC: 0.8908, ACC AUC: 0.8434, ACC NDCG@20: 0.0820, Current time: 0.26min
[RecUL] Epoch [5/2000], Loss: 1.7258, UL AUC: 0.8946, ACC AUC: 0.8363, ACC NDCG@20: 0.0822, Current time: 0.31min
[RecUL] Epoch [6/2000], Loss: 1.6914, UL AUC: 0.8988, ACC AUC: 0.8295, ACC NDCG@20: 0.0819, Current time: 0.37min
[RecUL] Epoch [7/2000], Loss: 1.6785, UL AUC: 0.8832, ACC AUC: 0.8328, ACC NDCG@20: 0.0820, Current time: 0.43min
[RecUL] Epoch [8/2000], Loss: 1.6627, UL AUC: 0.8707, ACC AUC: 0.8409, ACC NDCG@20: 0.0821, Current time: 0.48min
[RecUL] Epoch [9/2000], Loss: 1.6555, UL AUC: 0.8930, ACC AUC: 0.8247, ACC NDCG@20: 0.0819, Current time: 0.54min
[RecUL] Epoch [10/2000], Loss: 1.6355, UL AUC: 0.8949, ACC AUC: 0.8186, ACC NDCG@20: 0.0817, Current time: 0.59min
[RecUL] Epoch [11/2000], Loss: 1.6382, UL AUC: 0.8754, ACC AUC: 0.8273, ACC NDCG@20: 0.0815, Current time: 0.65min
Best UL AUC: 0.9288, Best epoch: 0, total time: 0.71min
[RECUL] TRAINING FINISHED. TOTAL TIME: 0.71min.
Precision@20: 0.0339; Recall@20: 0.1125;  NDCG@20: 0.0814;  
Precision@50: 0.0251; Recall@50: 0.2022;  NDCG@50: 0.1105;  
Precision@100: 0.0189; Recall@100: 0.2990;  NDCG@100: 0.1377;  
Before unlearning: ACC AUC: 0.8977, UL AUC: 0.4954, ACC NDCG@20: 0.0814
After unlearning: ACC AUC: 0.8069, UL AUC: 0.9288, ACC NDCG@20: 0.0814
