## 4 Results
### The Effect of the Diversity Control  
Table 4 shows the effect of the control threshold \(\rho\) on the diverse text generation. Given the CLpCEwDCS decoding framework (\(\beta=0.60\)), it is found that the evaluation metric values have no obvious difference when the \(\rho\) value increases, which indicates that the DCS decoding maintains the token generation quality along with \(\rho\) increase.  
Figure 4 shows the average candidate numbers in fifty experiments. The dotted red line with \(\Diamond\) shows \(\rho=0.01\), and the dashed blue line with \(\circ\) indicates \(\rho=0.10\). It is found that more candidate outputs of text summarization are generated when the control threshold \(\rho\) values increase. When \(\rho=0.10\), the number of candidate outputs might be  
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{\(\rho\)} & \multicolumn{4}{c}{**BLEU**} & \multirow{2}{*}{**METEOR**} & \multirow{2}{*}{**ROUGE**} & \multirow{2}{*}{**CIDER**} \\ \cline{2-2} \cline{5-7}  & **BLEU-1** & & & & & & \\ \hline
0.00 & 0.4939 & 0.4112 & 0.3470 & 0.2943 & 0.2616 & 0.5198 & 1.4477 \\
0.01 & 0.4939 & 0.4111 & 0.3470 & 0.2942 & 0.2612 & 0.5190 & 1.4459 \\
0.05 & 0.4939 & 0.4113 & 0.3466 & 0.2940 & 0.2613 & 0.5188 & 1.4445 \\
0.10 & 0.4937 & 0.4107 & 0.3461 & 0.2933 & 0.2612 & 0.5182 & 1.4339 \\ \hline \hline \end{tabular}
\end{table}
Table 4: DRG accuracy of DCS decoding by using different control threshold values.  
\begin{table}
\begin{tabular}{l l} \hline \hline \multicolumn{2}{c}{**Desentized Data Description**} \\ \hline \multirow{2}{*}{case A input} & 14 108 30 13 20 18 23 21 10 14 32 16 39 27 47 51 31 29 20 18 10 24 42 26 37 61 24 10 40 \\  & 13 45 163 45 39 159 49 50 204 37 21 157 155 10 \\ \hline CS output & 150 50 107 104 113 110 15 13 31 29 20 (maxTRR, 1/11) \\ DCS output & (1) 150 50 107 66 17 81 76 33 81 10 (maxTRR, 1/10) \\  & (2) 150 50 107 60 33 17 13 81 60 49 29 (maxTRR, 1/12) \\  & (3) 150 50 107 80 33 17 81 76 33 31 81 60 49 29 (maxTRR, 1/14) \\  & (4) 150 50 65 107 29 113 15 29 20 60 49 29 (maxTRR, 3/12) \\ \hline \multirow{7}{*}{case B input} & 83 12 38 41 17 1074 96 17 552 48 17 27 131 17 89 65 69 70 11 149 58 51 36 82 11 34 38 41 \\  & 17 40 153 44 23 21 25 11 263 256 567 28 91 119 58 94 894 141 126 231 11 45 83 207 281 \\ \cline{1-1} case B input & 240 35 300 212 491 302 279 300 212 111 113 104 290 297 281 315 286 258 280 11 \\  & 22 12 96 35 12 38 41 17 178 38 17 186 310 122 279 33 91 72 78 11 33 24 122 61 24 10 22 12 \\  & 62 33 628 51 171 82 13 686 170 1119 11 22 12 119 17 143 175 105 744 26 37 72 78 11 \\ \cline{1-1} CS output & 190 57 190 190 190 79 10 (maxTRR, 4/7) \\ DCS output & (1) 49 75 100 348 221 157 49 77 75 100 57 92 10 (maxTRR, 2/14) \\  & (2) 49 75 100 348 224 95 47 77 75 100 57 92 10 (maxTRR, 3/14) \\  & (3) 49 369 142 49 180 37 21 169 372 11 180 372 11 440 439 139 420 11 117 175 13 29 440 \\  & 439 11 202 191 200 487 365 175 98 10 (maxTRR, 2/33) \\  & (4) 49 369 142 49 180 372 11 369 372 11 180 372 11 440 439 139 420 11 117 487 384 440 \\  & 439 11 202 191 175 98 278 10 (maxTRR, 2/30) \\ \hline \hline \end{tabular}
\end{table}
Table 3: Perception of DRG text summarization for diversity analysis. The token underlined shows the token with the maxTRR value.  
larger than 1.4 that is potential to maintain text generation coherence and decrease token repetition ratio in DRG text summarization.