figure-evaluation-of-probability-for-grammar.tex

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\begin{scope}[sibling distance=0pt,level distance=17pt]
{\footnotesize
\Tree[.\node[inner sep=2pt](t1n1){IP};
          [.\node[inner sep=2pt](t1n2){NP};
               [.\node[inner sep=2pt](t1n3){NN}; 狗 ]
          ]
          [.\node[inner sep=2pt](t1n4){VP};
               [.\node[inner sep=2pt](t1n5){VV}; 喜欢 ]
               [.\node[inner sep=2pt](t1n6){VP};
                     [.\node[inner sep=2pt](t1n7){VV}; 吃 ]
                     [.\node[inner sep=2pt](t1n8){NN}; 骨头 ]
               ]
          ]
     ]
}
\end{scope}

\begin{scope}[sibling distance=0pt,level distance=17pt,yshift=-7em]
{\footnotesize
\Tree[.\node[inner sep=2pt](t2n1){IP};
          [.\node[inner sep=2pt](t2n2){VP};
               [.\node[inner sep=2pt](t2n3){VV}; \node[](t2w1){请}; ]
          ]
          [.\node[inner sep=2pt](t2n4){IP};
               [.\node[inner sep=2pt](t2n5){VP};
                    [.\node[inner sep=2pt](t2n6){VV}; 看 ]
               ]
               [.\node[inner sep=2pt](t2n7){NP};
                    [.\node[inner sep=2pt](t2n8){QP};
                          [.\node[inner sep=2pt](t2n9){CD}; 一 ]
                          [.\node[inner sep=2pt](t2n10){M}; 个 ]
                    ]
                    [.\node[inner sep=2pt](t2n11){ADJP};
                          [.\node[inner sep=2pt](t2n12){JJ}; 新 ]
                    ]
                    [.\node[inner sep=2pt](t2n13){NP};
                          [.\node[inner sep=2pt](t2n14){NN}; \node[](t2wn){句子}; ]
                    ]
               ]
          ]
     ]
}
\end{scope}

\node [anchor=south] (treebanklabel) at (t1n1.north) {{\color{ublue} 数据：树库}};

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\node[rectangle,draw=ublue, inner sep=0.2em] [fit = (treebanklabel) (t1n1) (t2w1) (t2wn)] (treebank) {};
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\node [anchor=north west] (math1) at ([xshift=2em]treebank.north east) {P(``VP $\to$ VV NN'')};
\node [anchor=north west] (math1part2) at ([xshift=-1em,yshift=0.2em]math1.south west) {$=\frac{\textrm{``VP''和``VV NN''同时出现的次数=1}}{\textrm{``VP''出现的次数}=4}$};

\node [anchor=north west] (math1part3) at ([yshift=0.2em]math1part2.south west){$=\frac{1}{4}$};

\node [anchor=north west] (math2) at ([yshift=-6em]math1.north west) {P(``NP $\to$ NN'')};
\node [anchor=north west] (math2part2) at ([xshift=-1em,yshift=0.2em]math2.south west) {$=\frac{\textrm{``NP''和``NN''同时出现的次数=2}}{\textrm{``NP''出现的次数}=3}$};
\node [anchor=north west] (math2part3) at ([yshift=0.2em]math2part2.south west){$=\frac{2}{3}$};


\node [anchor=north west] (math3) at ([yshift=-6em]math2.north west) {P(``IP $\to$ NP NP'')};
\node [anchor=north west] (math3part2) at ([xshift=-1em,yshift=0.2em]math3.south west) {$=\frac{\textrm{``IP''和``NP NP''同时出现的次数=0}}{\textrm{``IP''出现的次数}=3}$};
\node [anchor=north west] (math3part3) at ([yshift=0.2em]math3part2.south west){$=\frac{0}{3}$};

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