Why the loss of mobilenet no longer drops around 2.3

[Snowstorm0]

Epoch: [1/100], Loss: 2.32971787453, Accuracy: 10.1759996414, Test Loss: 2.30850172043, Test Accuracy: 10.0
Epoch: [2/100], Loss: 2.3074965477, Accuracy: 10.0780000687, Test Loss: 2.30438804626, Test Accuracy: 10.0
Epoch: [3/100], Loss: 2.30412840843, Accuracy: 10.1899995804, Test Loss: 2.30372524261, Test Accuracy: 10.0
Epoch: [4/100], Loss: 2.30375742912, Accuracy: 10.0920000076, Test Loss: 2.30361151695, Test Accuracy: 10.0

[liser0908]

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