%%------------------------------------------------------------------------------------------------------------
%% 短语抽取方法
\begin{center}
\begin{tikzpicture}

\tikzstyle{elementnode} = [rectangle,text=white,anchor=center]
\tikzstyle{srcnode} = [font=\small,anchor=south west]
\tikzstyle{tgtnode} = [left,font=\small,anchor=north east]
\tikzstyle{alignmentnode} = [rectangle,draw,minimum height=3.6*1.1cm,minimum width=0.36*1.1cm]
\tikzstyle{probnode} = [fill=blue!30,minimum width=0.4*1.1cm]
\tikzstyle{labelnode} = [above]

 alignment matrix1
\begin{scope}[scale=1,yshift=0.12in]
\foreach \i / \j / \c in
    {0/3/0.15, 1/3/0.15, 2/3/0.15, 3/3/0.15,
    0/2/0.15, 1/2/0.15, 2/2/0.15, 3/2/0.15,
    0/1/0.15, 1/1/0.15, 2/1/0.15, 3/1/0.15,
    0/0/0.15, 1/0/0.15, 2/0/0.15, 3/0/0.15}
    \node[elementnode,minimum size=0.6*1.1cm*\c,inner sep=0.1pt,fill=blue] (a\i\j) at (0.5*1.1cm*\i-5.4*0.5*1.1cm,0.5*1.1cm*\j-1.05*1.1cm) {};



 source
\node[srcnode] (src01) at (-5.9*0.5*1.1cm,-1.05*1.1cm+3.4*0.5*1.1cm) {\scriptsize{$t_1$}};
\node[srcnode] (src02) at ([xshift=0.5*1.1cm]src01.south west) {\scriptsize{$t_2$}};
\node[srcnode] (src03) at ([xshift=0.5*1.1cm]src02.south west) {\scriptsize{$t_3$}};
\node[srcnode] (src04) at ([xshift=0.5*1.1cm]src03.south west) {\scriptsize{$t_4$}};

 target
\node[tgtnode] (tgt01) at (-6.0*0.5*1.1cm,-1.05*1.1cm+3.3*0.5*1.1cm) {\scriptsize{$s_1$}};
\node[tgtnode] (tgt02) at ([yshift=-0.5*1.1cm]tgt01.north east) {\scriptsize{$s_2$}};
\node[tgtnode] (tgt03) at ([yshift=-0.5*1.1cm]tgt02.north east) {\scriptsize{$s_3$}};
\node[tgtnode] (tgt04) at ([yshift=-0.5*1.1cm]tgt03.north east) {\scriptsize{$s_4$}};

 alignment matrix2
\foreach \i / \j / \c in
    {0/3/0.15, 1/3/0.15, 2/3/0.15, 3/3/0.15,
    0/2/0.15, 1/2/0.15, 2/2/0.15, 3/2/0.15,
    0/1/0.15, 1/1/0.15, 2/1/0.15, 3/1/0.15,
    0/0/0.15, 1/0/0.15, 2/0/0.15, 3/0/0.15}
    \node[elementnode,minimum size=0.6*1.1cm*\c,inner sep=0.1pt,fill=blue] (b\i\j) at (0.5*1.1cm*\i+0.6*0.5*1.1cm,0.5*1.1cm*\j-1.05*1.1cm) {};

 source
\node[srcnode] (src11) at (0.1*0.5*1.1cm,-1.05*1.1cm+3.4*0.5*1.1cm) {\scriptsize{$t_1$}};
\node[srcnode] (src12) at ([xshift=0.5*1.1cm]src11.south west) {\scriptsize{$t_2$}};
\node[srcnode] (src13) at ([xshift=0.5*1.1cm]src12.south west) {\scriptsize{$t_3$}};
\node[srcnode] (src14) at ([xshift=0.5*1.1cm]src13.south west) {\scriptsize{$t_4$}};

 target
\node[tgtnode] (tgt11) at (0.2*0.5*1.1cm,-1.05*1.1cm+3.3*0.5*1.1cm) {\scriptsize{$s_1$}};
\node[tgtnode] (tgt12) at ([yshift=-0.5*1.1cm]tgt11.north east) {\scriptsize{$s_2$}};
\node[tgtnode] (tgt13) at ([yshift=-0.5*1.1cm]tgt12.north east) {\scriptsize{$s_3$}};
\node[tgtnode] (tgt14) at ([yshift=-0.5*1.1cm]tgt13.north east) {\scriptsize{$s_4$}};

 alignment matrix3
\foreach \i / \j / \c in
    {0/3/0.15, 1/3/0.15, 2/3/0.15, 3/3/0.15,
    0/2/0.15, 1/2/0.15, 2/2/0.15, 3/2/0.15,
    0/1/0.15, 1/1/0.15, 2/1/0.15, 3/1/0.15,
    0/0/0.15, 1/0/0.15, 2/0/0.15, 3/0/0.15}
    \node[elementnode,minimum size=0.6*1.1cm*\c,inner sep=0.1pt,fill=blue] (c\i\j) at (0.5*1.1cm*\i+6.6*0.5*1.1cm,0.5*1.1cm*\j-1.05*1.1cm) {};

 source
\node[srcnode] (src21) at (6.1*0.5*1.1cm,-1.05*1.1cm+3.4*0.5*1.1cm) {\scriptsize{$t_1$}};
\node[srcnode] (src22) at ([xshift=0.5*1.1cm]src21.south west) {\scriptsize{$t_2$}};
\node[srcnode] (src23) at ([xshift=0.5*1.1cm]src22.south west) {\scriptsize{$t_3$}};
\node[srcnode] (src24) at ([xshift=0.5*1.1cm]src23.south west) {\scriptsize{$t_4$}};

 target
\node[tgtnode] (tgt21) at (6.2*0.5*1.1cm,-1.05*1.1cm+3.3*0.5*1.1cm) {\scriptsize{$s_1$}};
\node[tgtnode] (tgt22) at ([yshift=-0.5*1.1cm]tgt21.north east) {\scriptsize{$s_2$}};
\node[tgtnode] (tgt23) at ([yshift=-0.5*1.1cm]tgt22.north east) {\scriptsize{$s_3$}};
\node[tgtnode] (tgt24) at ([yshift=-0.5*1.1cm]tgt23.north east) {\scriptsize{$s_4$}};

 word alignment
\node[align=center,elementnode,minimum size=0.3cm,inner sep=0.1pt,fill=blue!50] (la1) at (a03) {};
\node[align=center,elementnode,minimum size=0.3cm,inner sep=0.1pt,fill=blue!50] (la2) at (a12) {};
\node[align=center,elementnode,minimum size=0.3cm,inner sep=0.1pt,fill=blue!50] (la3) at (a11) {};

\node[align=center,elementnode,minimum size=0.3cm,inner sep=0.1pt,fill=blue!50] (lb1) at (b03) {};
\node[align=center,elementnode,minimum size=0.3cm,inner sep=0.1pt,fill=blue!50] (lb2) at (b12) {};
\node[align=center,elementnode,minimum size=0.3cm,inner sep=0.1pt,fill=red!50] (lb3) at (b11) {};

\node[align=center,elementnode,minimum size=0.3cm,inner sep=0.1pt,fill=blue!50] (lc1) at (c03) {};
\node[align=center,elementnode,minimum size=0.3cm,inner sep=0.1pt,fill=blue!50] (lc2) at (c12) {};
\node[align=center,elementnode,minimum size=0.3cm,inner sep=0.1pt,fill=blue!50] (lc3) at (c11) {};

\begin{pgfonlayer}{background}
\node [rectangle,draw=green,thick,inner sep=0.4em,fill=white,drop shadow] [fit = (a03) (a11)] (phrase1) {};
\node [rectangle,draw=red,thick,inner sep=0.4em,fill=white,drop shadow] [fit = (b03) (b12)] (phrase2) {};
\node [rectangle,draw=green,thick,inner sep=0.4em,fill=white,drop shadow] [fit = (c03) (c21)] (phrase3) {};
\end{pgfonlayer}
\end{scope}

\end{tikzpicture}
\end{center}