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: 1.7568, UL AUC: 0.8443, ACC AUC: 0.7903, ACC NDCG@20: 0.1354, Current time: 0.20min
[RecUL] Epoch [2/2000], Loss: 1.0327, UL AUC: 0.8230, ACC AUC: 0.8561, ACC NDCG@20: 0.1359, Current time: 0.33min
[RecUL] Epoch [3/2000], Loss: 0.7971, UL AUC: 0.8027, ACC AUC: 0.8752, ACC NDCG@20: 0.1359, Current time: 0.46min
[RecUL] Epoch [4/2000], Loss: 0.6750, UL AUC: 0.7973, ACC AUC: 0.8828, ACC NDCG@20: 0.1358, Current time: 0.59min
[RecUL] Epoch [5/2000], Loss: 0.6542, UL AUC: 0.7955, ACC AUC: 0.8866, ACC NDCG@20: 0.1358, Current time: 0.72min
[RecUL] Epoch [6/2000], Loss: 0.6128, UL AUC: 0.7934, ACC AUC: 0.8891, ACC NDCG@20: 0.1358, Current time: 0.85min
[RecUL] Epoch [7/2000], Loss: 0.5894, UL AUC: 0.8076, ACC AUC: 0.8906, ACC NDCG@20: 0.1360, Current time: 0.98min
[RecUL] Epoch [8/2000], Loss: 0.5169, UL AUC: 0.8052, ACC AUC: 0.8936, ACC NDCG@20: 0.1359, Current time: 1.11min
[RecUL] Epoch [9/2000], Loss: 0.5173, UL AUC: 0.7963, ACC AUC: 0.8970, ACC NDCG@20: 0.1359, Current time: 1.24min
[RecUL] Epoch [10/2000], Loss: 0.5069, UL AUC: 0.7962, ACC AUC: 0.8972, ACC NDCG@20: 0.1359, Current time: 1.37min
[RecUL] Epoch [11/2000], Loss: 0.5085, UL AUC: 0.7999, ACC AUC: 0.8982, ACC NDCG@20: 0.1357, Current time: 1.50min
Best UL AUC: 0.8443, Best epoch: 0, total time: 1.63min
[RECUL] TRAINING FINISHED. TOTAL TIME: 1.78min.
Precision@20: 0.0493; Recall@20: 0.1610;  NDCG@20: 0.1359;  
Precision@50: 0.0314; Recall@50: 0.2515;  NDCG@50: 0.1645;  
Precision@100: 0.0217; Recall@100: 0.3418;  NDCG@100: 0.1900;  
Before unlearning: ACC AUC: 0.9346, UL AUC: 0.5017, ACC NDCG@20: 0.1355
After unlearning: ACC AUC: 0.7903, UL AUC: 0.8443, ACC NDCG@20: 0.1359
