deepinsight / deepinsight/insightface
你好，为什么训练会出现acc=0的现象，并切loss值不会下降，求帮助
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Description
INFO:root:Epoch[0] Batch [0-20] Speed: 0.96 samples/sec acc=0.005952 lossvalue=6.244117
INFO:root:Epoch[0] Batch [20-40] Speed: 0.99 samples/sec acc=0.000000 lossvalue=6.229731
INFO:root:Epoch[0] Batch [40-60] Speed: 0.95 samples/sec acc=0.000000 lossvalue=6.254212
INFO:root:Epoch[0] Batch [60-80] Speed: 0.94 samples/sec acc=0.006250 lossvalue=6.224050
INFO:root:Epoch[0] Batch [80-100] Speed: 0.95 samples/sec acc=0.006250 lossvalue=6.221473
INFO:root:Epoch[0] Batch [100-120] Speed: 0.96 samples/sec acc=0.006250 lossvalue=6.220169
INFO:root:Epoch[0] Batch [120-140] Speed: 0.94 samples/sec acc=0.006250 lossvalue=6.214798
INFO:root:Epoch[0] Batch [140-160] Speed: 0.95 samples/sec acc=0.000000 lossvalue=6.251216
INFO:root:Epoch[0] Batch [160-180] Speed: 0.96 samples/sec acc=0.000000 lossvalue=6.192453
INFO:root:Epoch[0] Batch [180-200] Speed: 0.98 samples/sec acc=0.000000 lossvalue=6.244839
INFO:root:Epoch[0] Batch [200-220] Speed: 1.00 samples/sec acc=0.000000 lossvalue=6.203299
INFO:root:Epoch[0] Batch [220-240] Speed: 1.00 samples/sec acc=0.012500 lossvalue=6.215086
INFO:root:Epoch[0] Batch [240-260] Speed: 1.00 samples/sec acc=0.000000 lossvalue=6.204084
INFO:root:Epoch[0] Batch [260-280] Speed: 1.00 samples/sec acc=0.000000 lossvalue=6.177462
INFO:root:Epoch[0] Batch [280-300] Speed: 1.00 samples/sec acc=0.012500 lossvalue=6.184724
INFO:root:Epoch[0] Batch [300-320] Speed: 1.00 samples/sec acc=0.000000 lossvalue=6.201993
INFO:root:Epoch[0] Batch [320-340] Speed: 1.00 samples/sec acc=0.006250 lossvalue=6.204159
INFO:root:Epoch[0] Batch [340-360] Speed: 1.00 samples/sec acc=0.000000 lossvalue=6.172345
INFO:root:Epoch[0] Batch [360-380] Speed: 1.00 samples/sec acc=0.000000 lossvalue=6.195843
INFO:root:Epoch[0] Batch [380-400] Speed: 1.00 samples/sec acc=0.006250 lossvalue=6.186938
INFO:root:Epoch[0] Batch [400-420] Speed: 1.00 samples/sec acc=0.006250 lossvalue=6.145568
INFO:root:Epoch[0] Train-acc=0.007812
INFO:root:Epoch[0] Train-lossvalue=6.164720
INFO:root:Epoch[0] Time cost=3569.542
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