# GRU小结

$$r_t= sigmoid(W_r . [h(t-1),x_t])$$ $$z_t= sigmoid(W_z . [h(t-1),x_t])$$ $$h^-_t = tanh(W_h^- .[r_t * h(t-1), x_T])$$ $$h_t = (1-z_t) * h(t-1) + z_t * h^-_t$$