figure-crf-to-deal-with-sequence-problems.tex

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		\node[hide] (y1) at (0,0){$y_1$};
		\node[anchor=west,hide](y2)at([xshift=2em]y1.east){$y_2$};
		\node[anchor=west,hide](y3)at([xshift=2em]y2.east){$y_3$};
		\node[anchor=west,line width=1pt,inner sep=2pt,minimum size=2em](dots)at([xshift=2em]y3.east){$\cdots$};
		\node[anchor=west,hide](yn-1)at([xshift=2em]dots.east){$y_{m-1}$};
		\node[anchor=west,hide](yn)at([xshift=2em]yn-1.east){$y_m$};
		
		\node[anchor=north,draw,line width=1pt,inner sep=2pt,fill=red!30,minimum height=2em,minimum width=12em](see)at ([yshift=-3em,xshift=2em]y3.south){${x}=(x_1,x_2,\ldots,x_{m-1},x_m)$};
		\node[anchor=south,font=\footnotesize] at ([yshift=1em,xshift=2em]y3.north){待预测的隐含状态序列};
		\node[anchor=north,font=\footnotesize] at ([yshift=-1em]see.south){可见状态序列};
		
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