Update GNMT

Section06-Neural-Machine-Translation/section06.tex

@@ -2791,6 +2791,11 @@ $\textrm{``you''} = \argmax_{y} \textrm{P}(y|\textbf{s}_1, \alert{\textbf{C}})$
 %%% GNMT
 \begin{frame}{成功案例 - GNMT}
 %% GNMT的图和几句话说它多牛
+\begin{itemize}
+    \item 使用残差连接来训练8层的编码解码器  % 提升性能
+    \item 编码器只有最下面2层为双向LSTM  % 提升速度
+    \item 解码器只使用最底层输出作为注意力机制的query  % 提升速度
+\end{itemize}
 \begin{center}
     \begin{tikzpicture}
         \setlength{\base}{0.25cm}
@@ -2968,9 +2973,9 @@ $\textrm{``you''} = \argmax_{y} \textrm{P}(y|\textbf{s}_1, \alert{\textbf{C}})$
                 \draw[-latex'] (dec\prev4) to (dec\cur4);
             }
 
-            \draw[-latex'] ([xshift=1pt]dec21.north) to [out=30,in=-30] ([xshift=1pt]dec41.south);
-            \draw[-latex'] ([xshift=1pt]dec22.north) to [out=30,in=-30] ([xshift=1pt]dec42.south);
-            \draw[-latex'] ([xshift=1pt]dec24.north) to [out=30,in=-30] ([xshift=1pt]dec44.south);
+            \draw[-latex'] ([xshift=-2pt]dec21.north) to [out=150,in=-150] ([xshift=-2pt]dec41.south);
+            \draw[-latex'] ([xshift=-2pt]dec22.north) to [out=150,in=-150] ([xshift=-2pt]dec42.south);
+            \draw[-latex'] ([xshift=-2pt]dec24.north) to [out=150,in=-150] ([xshift=-2pt]dec44.south);
 
             \draw[-latex'] (dec51) to (softmax1);
             \draw[-latex'] (dec52) to (softmax2);