第三周:序列模型和注意力机制 3.1 基础模型 1.序列到序列模型 【参考文献:Sutskever et. al., 2014. Sequence to sequence learning with neural networks, Cho et. al., 2014. Learning phrase representations using RNN encoder-decoder for statistical machine translation】 如图1所示,那么怎样训练处一个网络来输入序列x和输出序列y…