Read ml-1M dataset done! u_num: 6040, i_num: 3883
Load a pre-trained model
 UL AUC before unlearning: 0.5083
ACC AUC before unlearning: 0.8614
NDCG@20 before unlearning: 0.2260
[IFRU] START TRAINING. CURRENT TIME: 0.00min.
[IFRU] PREPROCESS FINISHED. CURRENT TIME: 0.00min.
[IFRU] Epoch [1/2000], UL AUC: 0.5274, ACC AUC: 0.8587, ACC NDCG@20: 0.2080, Current time: 0.09min
[IFRU] Epoch [2/2000], UL AUC: 0.5389, ACC AUC: 0.8526, ACC NDCG@20: 0.1519, Current time: 0.13min
[IFRU] Epoch [3/2000], UL AUC: 0.5468, ACC AUC: 0.8451, ACC NDCG@20: 0.0969, Current time: 0.17min
[IFRU] Epoch [4/2000], UL AUC: 0.5525, ACC AUC: 0.8376, ACC NDCG@20: 0.0641, Current time: 0.21min
[IFRU] Epoch [5/2000], UL AUC: 0.5569, ACC AUC: 0.8304, ACC NDCG@20: 0.0489, Current time: 0.25min
[IFRU] Epoch [6/2000], UL AUC: 0.5606, ACC AUC: 0.8236, ACC NDCG@20: 0.0421, Current time: 0.29min
[IFRU] Epoch [7/2000], UL AUC: 0.5632, ACC AUC: 0.8171, ACC NDCG@20: 0.0384, Current time: 0.33min
[IFRU] Epoch [8/2000], UL AUC: 0.5655, ACC AUC: 0.8110, ACC NDCG@20: 0.0360, Current time: 0.37min
[IFRU] Epoch [9/2000], UL AUC: 0.5680, ACC AUC: 0.8050, ACC NDCG@20: 0.0342, Current time: 0.42min
[IFRU] Epoch [10/2000], UL AUC: 0.5700, ACC AUC: 0.7993, ACC NDCG@20: 0.0329, Current time: 0.47min
[IFRU] Epoch [11/2000], UL AUC: 0.5716, ACC AUC: 0.7940, ACC NDCG@20: 0.0319, Current time: 0.51min
[IFRU] Epoch [12/2000], UL AUC: 0.5727, ACC AUC: 0.7887, ACC NDCG@20: 0.0311, Current time: 0.55min
[IFRU] Epoch [13/2000], UL AUC: 0.5740, ACC AUC: 0.7838, ACC NDCG@20: 0.0303, Current time: 0.59min
[IFRU] Epoch [14/2000], UL AUC: 0.5750, ACC AUC: 0.7790, ACC NDCG@20: 0.0297, Current time: 0.63min
[IFRU] Epoch [15/2000], UL AUC: 0.5759, ACC AUC: 0.7745, ACC NDCG@20: 0.0290, Current time: 0.67min
[IFRU] Epoch [16/2000], UL AUC: 0.5765, ACC AUC: 0.7702, ACC NDCG@20: 0.0287, Current time: 0.72min
[IFRU] Epoch [17/2000], UL AUC: 0.5775, ACC AUC: 0.7659, ACC NDCG@20: 0.0283, Current time: 0.76min
[IFRU] Epoch [18/2000], UL AUC: 0.5786, ACC AUC: 0.7618, ACC NDCG@20: 0.0279, Current time: 0.80min
[IFRU] Epoch [19/2000], UL AUC: 0.5794, ACC AUC: 0.7578, ACC NDCG@20: 0.0276, Current time: 0.84min
[IFRU] Epoch [20/2000], UL AUC: 0.5804, ACC AUC: 0.7540, ACC NDCG@20: 0.0273, Current time: 0.88min
[IFRU] Epoch [21/2000], UL AUC: 0.5808, ACC AUC: 0.7503, ACC NDCG@20: 0.0271, Current time: 0.92min
[IFRU] Epoch [22/2000], UL AUC: 0.5811, ACC AUC: 0.7467, ACC NDCG@20: 0.0269, Current time: 0.96min
[IFRU] Epoch [23/2000], UL AUC: 0.5810, ACC AUC: 0.7432, ACC NDCG@20: 0.0268, Current time: 1.01min
[IFRU] Epoch [24/2000], UL AUC: 0.5809, ACC AUC: 0.7398, ACC NDCG@20: 0.0266, Current time: 1.05min
[IFRU] Epoch [25/2000], UL AUC: 0.5808, ACC AUC: 0.7365, ACC NDCG@20: 0.0265, Current time: 1.09min
[IFRU] Epoch [26/2000], UL AUC: 0.5808, ACC AUC: 0.7333, ACC NDCG@20: 0.0263, Current time: 1.13min
[IFRU] Epoch [27/2000], UL AUC: 0.5810, ACC AUC: 0.7303, ACC NDCG@20: 0.0262, Current time: 1.17min
[IFRU] Epoch [28/2000], UL AUC: 0.5809, ACC AUC: 0.7273, ACC NDCG@20: 0.0261, Current time: 1.22min
[IFRU] Epoch [29/2000], UL AUC: 0.5807, ACC AUC: 0.7244, ACC NDCG@20: 0.0259, Current time: 1.26min
[IFRU] Epoch [30/2000], UL AUC: 0.5808, ACC AUC: 0.7217, ACC NDCG@20: 0.0258, Current time: 1.30min
[IFRU] Epoch [31/2000], UL AUC: 0.5811, ACC AUC: 0.7190, ACC NDCG@20: 0.0257, Current time: 1.34min
[IFRU] Epoch [32/2000], UL AUC: 0.5809, ACC AUC: 0.7164, ACC NDCG@20: 0.0256, Current time: 1.38min
[IFRU] Epoch [33/2000], UL AUC: 0.5811, ACC AUC: 0.7138, ACC NDCG@20: 0.0255, Current time: 1.42min
[IFRU] Epoch [34/2000], UL AUC: 0.5814, ACC AUC: 0.7113, ACC NDCG@20: 0.0255, Current time: 1.46min
[IFRU] Epoch [35/2000], UL AUC: 0.5813, ACC AUC: 0.7089, ACC NDCG@20: 0.0254, Current time: 1.50min
[IFRU] Epoch [36/2000], UL AUC: 0.5811, ACC AUC: 0.7066, ACC NDCG@20: 0.0253, Current time: 1.54min
[IFRU] Epoch [37/2000], UL AUC: 0.5808, ACC AUC: 0.7044, ACC NDCG@20: 0.0253, Current time: 1.58min
[IFRU] Epoch [38/2000], UL AUC: 0.5808, ACC AUC: 0.7022, ACC NDCG@20: 0.0252, Current time: 1.63min
[IFRU] Epoch [39/2000], UL AUC: 0.5807, ACC AUC: 0.7001, ACC NDCG@20: 0.0251, Current time: 1.67min
[IFRU] Epoch [40/2000], UL AUC: 0.5810, ACC AUC: 0.6980, ACC NDCG@20: 0.0250, Current time: 1.71min
[IFRU] Epoch [41/2000], UL AUC: 0.5811, ACC AUC: 0.6960, ACC NDCG@20: 0.0249, Current time: 1.75min
[IFRU] Epoch [42/2000], UL AUC: 0.5808, ACC AUC: 0.6940, ACC NDCG@20: 0.0249, Current time: 1.79min
[IFRU] Epoch [43/2000], UL AUC: 0.5811, ACC AUC: 0.6920, ACC NDCG@20: 0.0248, Current time: 1.83min
[IFRU] Epoch [44/2000], UL AUC: 0.5811, ACC AUC: 0.6901, ACC NDCG@20: 0.0248, Current time: 1.88min
[IFRU] Epoch [45/2000], UL AUC: 0.5809, ACC AUC: 0.6882, ACC NDCG@20: 0.0247, Current time: 1.92min
[IFRU] Epoch [46/2000], UL AUC: 0.5811, ACC AUC: 0.6864, ACC NDCG@20: 0.0247, Current time: 1.96min
[IFRU] Epoch [47/2000], UL AUC: 0.5814, ACC AUC: 0.6846, ACC NDCG@20: 0.0246, Current time: 2.00min
[IFRU] Epoch [48/2000], UL AUC: 0.5811, ACC AUC: 0.6828, ACC NDCG@20: 0.0246, Current time: 2.04min
[IFRU] Epoch [49/2000], UL AUC: 0.5811, ACC AUC: 0.6812, ACC NDCG@20: 0.0246, Current time: 2.08min
[IFRU] Epoch [50/2000], UL AUC: 0.5811, ACC AUC: 0.6795, ACC NDCG@20: 0.0245, Current time: 2.12min
[IFRU] Epoch [51/2000], UL AUC: 0.5811, ACC AUC: 0.6778, ACC NDCG@20: 0.0245, Current time: 2.16min
[IFRU] Epoch [52/2000], UL AUC: 0.5808, ACC AUC: 0.6762, ACC NDCG@20: 0.0245, Current time: 2.21min
[IFRU] Epoch [53/2000], UL AUC: 0.5808, ACC AUC: 0.6746, ACC NDCG@20: 0.0245, Current time: 2.25min
[IFRU] Epoch [54/2000], UL AUC: 0.5806, ACC AUC: 0.6731, ACC NDCG@20: 0.0245, Current time: 2.29min
[IFRU] Epoch [55/2000], UL AUC: 0.5808, ACC AUC: 0.6716, ACC NDCG@20: 0.0244, Current time: 2.33min
[IFRU] Epoch [56/2000], UL AUC: 0.5806, ACC AUC: 0.6701, ACC NDCG@20: 0.0244, Current time: 2.37min
[IFRU] Epoch [57/2000], UL AUC: 0.5806, ACC AUC: 0.6687, ACC NDCG@20: 0.0244, Current time: 2.41min
[IFRU] Epoch [58/2000], UL AUC: 0.5803, ACC AUC: 0.6674, ACC NDCG@20: 0.0244, Current time: 2.45min
[IFRU] Epoch [59/2000], UL AUC: 0.5798, ACC AUC: 0.6659, ACC NDCG@20: 0.0244, Current time: 2.50min
[IFRU] Epoch [60/2000], UL AUC: 0.5796, ACC AUC: 0.6646, ACC NDCG@20: 0.0243, Current time: 2.54min
[IFRU] Epoch [61/2000], UL AUC: 0.5797, ACC AUC: 0.6632, ACC NDCG@20: 0.0243, Current time: 2.58min
[IFRU] Epoch [62/2000], UL AUC: 0.5797, ACC AUC: 0.6619, ACC NDCG@20: 0.0243, Current time: 2.62min
[IFRU] Epoch [63/2000], UL AUC: 0.5798, ACC AUC: 0.6606, ACC NDCG@20: 0.0243, Current time: 2.66min
[IFRU] Epoch [64/2000], UL AUC: 0.5799, ACC AUC: 0.6594, ACC NDCG@20: 0.0242, Current time: 2.70min
[IFRU] Epoch [65/2000], UL AUC: 0.5801, ACC AUC: 0.6581, ACC NDCG@20: 0.0242, Current time: 2.74min
[IFRU] Epoch [66/2000], UL AUC: 0.5802, ACC AUC: 0.6570, ACC NDCG@20: 0.0242, Current time: 2.78min
[IFRU] Epoch [67/2000], UL AUC: 0.5801, ACC AUC: 0.6558, ACC NDCG@20: 0.0242, Current time: 2.82min
[IFRU] Epoch [68/2000], UL AUC: 0.5800, ACC AUC: 0.6547, ACC NDCG@20: 0.0241, Current time: 2.87min
[IFRU] Epoch [69/2000], UL AUC: 0.5799, ACC AUC: 0.6535, ACC NDCG@20: 0.0241, Current time: 2.91min
Best UL AUC: 0.5794, Best epoch: 18, total time: 2.95min
[IFRU] TRAINING FINISHED. TOTAL TIME: 2.95min.
Precision@20: 0.0252; Recall@20: 0.0168;  NDCG@20: 0.0276;  
Precision@50: 0.0240; Recall@50: 0.0400;  NDCG@50: 0.0360;  
Precision@100: 0.0290; Recall@100: 0.0967;  NDCG@100: 0.0655;  
Before unlearning: ACC AUC: 0.8614, UL AUC: 0.5083, ACC NDCG@20: 0.2260
After unlearning: ACC AUC: 0.7578, UL AUC: 0.5794, ACC NDCG@20: 0.0276
