%%%------------------------------------------------------------------------------------------------------------
 \begin{tikzpicture}
      \scriptsize{
\begin{axis}[
    width=8cm,
    height=5cm,
    yticklabel style={/pgf/number format/.cd,fixed,precision=2},
    xticklabel style={color=white},
    xlabel={\footnotesize{Beam Size}},ylabel={\footnotesize{BLEU}},
    ymin=28.8,ymax=30.4,
    xmin=0,xmax=10,
    xtick={0,4,6,7,8,9,10},
    ytick={28.8,29.0,29.2,29.4,29.6,29.8,30.0,30.2,30.4},
    legend style={yshift=-5em,xshift=0em,legend cell align=left,legend plot pos=right}
]

\addplot[purple,mark=square,mark=star,very thick] coordinates {(0,29.3) (4,29.7) (6,30.05) (7,30.1) (7.6,30.2) (8,30.3) (8.3,30.2) (8.7,30.08) (9,29.98) (9.6,29.6)(10,28.8) };
\end{axis}
}
\node[inner sep=0pt] at (0,-1em) {1};
\node[inner sep=0pt] at (9.15em,-1em) {2};
\node[inner sep=0pt] at (13.75em,-1em) {3};
\node[inner sep=0pt] at (16.05em,-1em) {5};
\node[inner sep=0pt] at (18.35em,-1em) {10};
\node[inner sep=0pt] at (20.65em,-1em) {30};
\node[inner sep=0pt] at (22.9em,-1em) {100};
 \end{tikzpicture}










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