Read gowalla dataset done! u_num: 29858, i_num: 40981
Load a pre-trained model
UL AUC before unlearning: 0.5017
ACC AUC before unlearning: 0.9346
NDCG@20 before unlearning: 0.1355
Start phantom user assignment k-means!
Finish phantom user assignment k-means!
AUC before unlearning: 0.6690
NDCG@20 before unlearning: 0.1349
[RECUL] START TRAINING. CURRENT TIME: 0.15min.
[RECUL] PREPROCESS FINISHED. CURRENT TIME: 0.05min.
[RecUL] Epoch [1/2000], Loss: 1.7783, UL AUC: 0.8485, ACC AUC: 0.7891, ACC NDCG@20: 0.1353, Current time: 0.20min
[RecUL] Epoch [2/2000], Loss: 1.0409, UL AUC: 0.8202, ACC AUC: 0.8534, ACC NDCG@20: 0.1357, Current time: 0.33min
[RecUL] Epoch [3/2000], Loss: 0.7901, UL AUC: 0.8086, ACC AUC: 0.8707, ACC NDCG@20: 0.1358, Current time: 0.46min
[RecUL] Epoch [4/2000], Loss: 0.6745, UL AUC: 0.7937, ACC AUC: 0.8802, ACC NDCG@20: 0.1357, Current time: 0.59min
[RecUL] Epoch [5/2000], Loss: 0.6426, UL AUC: 0.7998, ACC AUC: 0.8867, ACC NDCG@20: 0.1357, Current time: 0.72min
[RecUL] Epoch [6/2000], Loss: 0.5844, UL AUC: 0.7974, ACC AUC: 0.8883, ACC NDCG@20: 0.1357, Current time: 0.85min
[RecUL] Epoch [7/2000], Loss: 0.5743, UL AUC: 0.8031, ACC AUC: 0.8885, ACC NDCG@20: 0.1358, Current time: 0.98min
[RecUL] Epoch [8/2000], Loss: 0.5433, UL AUC: 0.8061, ACC AUC: 0.8916, ACC NDCG@20: 0.1358, Current time: 1.11min
[RecUL] Epoch [9/2000], Loss: 0.5122, UL AUC: 0.7983, ACC AUC: 0.8951, ACC NDCG@20: 0.1358, Current time: 1.24min
[RecUL] Epoch [10/2000], Loss: 0.5048, UL AUC: 0.7984, ACC AUC: 0.8977, ACC NDCG@20: 0.1358, Current time: 1.37min
[RecUL] Epoch [11/2000], Loss: 0.5035, UL AUC: 0.8074, ACC AUC: 0.8977, ACC NDCG@20: 0.1360, Current time: 1.50min
Best UL AUC: 0.8485, Best epoch: 0, total time: 1.63min
[RECUL] TRAINING FINISHED. TOTAL TIME: 1.78min.
Precision@20: 0.0493; Recall@20: 0.1609;  NDCG@20: 0.1357;  
Precision@50: 0.0314; Recall@50: 0.2516;  NDCG@50: 0.1643;  
Precision@100: 0.0217; Recall@100: 0.3417;  NDCG@100: 0.1898;  
Before unlearning: ACC AUC: 0.9346, UL AUC: 0.5017, ACC NDCG@20: 0.1355
After unlearning: ACC AUC: 0.7891, UL AUC: 0.8485, ACC NDCG@20: 0.1357
