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: 3.6036, UL AUC: 0.9346, ACC AUC: 0.7992, ACC NDCG@20: 0.0808, Current time: 0.09min
[RecUL] Epoch [2/2000], Loss: 3.2959, UL AUC: 0.9134, ACC AUC: 0.8350, ACC NDCG@20: 0.0810, Current time: 0.15min
[RecUL] Epoch [3/2000], Loss: 3.1247, UL AUC: 0.9070, ACC AUC: 0.8369, ACC NDCG@20: 0.0815, Current time: 0.21min
[RecUL] Epoch [4/2000], Loss: 3.0633, UL AUC: 0.9007, ACC AUC: 0.8411, ACC NDCG@20: 0.0819, Current time: 0.27min
[RecUL] Epoch [5/2000], Loss: 3.0439, UL AUC: 0.9005, ACC AUC: 0.8290, ACC NDCG@20: 0.0817, Current time: 0.33min
[RecUL] Epoch [6/2000], Loss: 3.0120, UL AUC: 0.8966, ACC AUC: 0.8337, ACC NDCG@20: 0.0817, Current time: 0.39min
[RecUL] Epoch [7/2000], Loss: 3.0011, UL AUC: 0.8974, ACC AUC: 0.8322, ACC NDCG@20: 0.0816, Current time: 0.44min
[RecUL] Epoch [8/2000], Loss: 2.9718, UL AUC: 0.9050, ACC AUC: 0.8219, ACC NDCG@20: 0.0814, Current time: 0.50min
[RecUL] Epoch [9/2000], Loss: 2.9764, UL AUC: 0.8777, ACC AUC: 0.8410, ACC NDCG@20: 0.0810, Current time: 0.56min
[RecUL] Epoch [10/2000], Loss: 2.9535, UL AUC: 0.8823, ACC AUC: 0.8304, ACC NDCG@20: 0.0807, Current time: 0.62min
[RecUL] Epoch [11/2000], Loss: 2.9595, UL AUC: 0.8926, ACC AUC: 0.8196, ACC NDCG@20: 0.0805, Current time: 0.68min
Best UL AUC: 0.9346, Best epoch: 0, total time: 0.74min
[RECUL] TRAINING FINISHED. TOTAL TIME: 0.74min.
Precision@20: 0.0338; Recall@20: 0.1122;  NDCG@20: 0.0810;  
Precision@50: 0.0250; Recall@50: 0.2021;  NDCG@50: 0.1101;  
Precision@100: 0.0189; Recall@100: 0.2990;  NDCG@100: 0.1373;  
Before unlearning: ACC AUC: 0.8977, UL AUC: 0.4954, ACC NDCG@20: 0.0814
After unlearning: ACC AUC: 0.7992, UL AUC: 0.9346, ACC NDCG@20: 0.0810
