cs224n-第9課（GRU-LSTM)

1 GRU (Gated Recurrent Unit) 更新門（update gate）: z t = δ ( W ( z ) x t + U ( z ) h t − 1 ) z_t=\delta(W^{(z)}x_t+U^{(z)}h_{t-1}) zt​=δ(W(z)xt​+U(z)ht−1​) 重置門（reset gate）： r z = δ ( W ( r ) x t + U ( r )

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