new update

Section04-Phrasal-and-Syntactic-Models/section04-test.tex

@@ -146,7 +146,67 @@
 %%%  规则实例(树到树)
 \begin{frame}{基于树的翻译规则}
 \begin{itemize}
-\item 上述文法定义了一种树结构到树结构的映射
+\item 上述文法定义了一种树结构到树结构的映射，例子：
+\end{itemize}
+
+\begin{center}
+\begin{tikzpicture}
+
+{\scriptsize
+\begin{scope}[sibling distance=5pt, level distance = 22pt]
+\Tree[.\node(s1){VP}; [.\node(s2){PP}; ] [.\node(s3){VP}; [.\node(s4){VV}; \node[fill=white](w1){表示}; ] [.\node(s5){NN}; ] ] ]
+\end{scope}
+
+\begin{scope}[xshift=2in,sibling distance=5pt, level distance = 22pt]
+\Tree[.\node(t1){VP}; [.\node(t2){VBZ}; \node(w2){was}; ] [.\node(t3){VP}; [.\node(t4){VBN}; ] [.\node(t5){PP}; ] ] ]
+\end{scope}
+
+\begin{pgfonlayer}{background}
+\node [anchor=west] (arrow) at ([xshift=3em]s5.east) {\Large{\textbf{$\to$}}};
+\visible<2->{
+\node [inner sep=0,fill=orange!20] [fit = (s2)] (snode1) {};
+\node [inner sep=0,fill=green!20] [fit = (s5)] (snode2) {};
+\node [inner sep=0,fill=green!20] [fit = (t4)] (tnode1) {};
+\node [inner sep=0,fill=orange!20] [fit = (t5)] (tnode2) {};
+\draw [<->,dotted,thick] (snode2.south) ..controls +(south:2.5em) and +(south:2.5em).. (tnode1.south);
+\draw [<->,dotted,thick] (snode1.south) ..controls +(south:8em) and +(south:4.5em).. (tnode2.south);
+}
+\end{pgfonlayer}
+}
+
+\end{tikzpicture}
+\end{center}
+
+\vspace{-2.0em}
+
+\begin{itemize}
+\item 由规则定义$\langle\  \alpha_h, \beta_h\ \rangle \to \langle\ \alpha_r, \beta_r, \sim\ \rangle$知道
+
+
+\vspace{-1.3em}
+{\small
+\begin{eqnarray}
+\langle\ \alpha_h,\beta_h\ \rangle & = & \langle\ \textrm{VP}, \textrm{VP}\ \rangle \nonumber \\
+\alpha_r & = & \textrm{VP(PP:}x\ \textrm{VP(VV(表示) NN:}x)) \nonumber \\
+\beta_r & = & \textrm{VP(VBZ(was) VP(VBZ:}x\ \textrm{PP:}x)) \nonumber \\
+\sim & = & \{1-2,2-1\} \nonumber
+\end{eqnarray}
+}
+
+\vspace{-1.7em}
+\visible<2->{
+$x$表示叶子非终结符(可替换的变量)，显然这是调序规则
+}
+
+\end{itemize}
+
+\end{frame}
+
+%%%------------------------------------------------------------------------------------------------------------
+%%%  规则实例(树到树)
+\begin{frame}{基于树的翻译规则(续)}
+\begin{itemize}
+\item 
 \end{itemize}
 \end{frame}