## 3 Results and Discussions
### Results of Predicting Age Information for Unlabeled Datasets and Exploration
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Section \(S\)**} & \multirow{2}{*}{\begin{tabular}{c} **Age** \\ **Group \(g\)** \\ \end{tabular} } & \multicolumn{2}{c}{\
\begin{tabular}{c} **True Values of the** \\ **Labeled** \\ \end{tabular} } & \multicolumn{2}{c}{
\begin{tabular}{c} **Predictions for the** \\ **Unlabeled** \\ \end{tabular} } & \multicolumn{2}{c}{**Values of the Mixed**} & \multicolumn{2}{c}{**Z-Test**} \\ \cline{2-7}  & **Mean** & **S.D.** & **Mean** & **S.D.** & **Mean** & **S.D.** & **Z** & **_p_-Value** \\ \hline \multirow{5}{*}{Politics} & 10s & 0.0121 & 0.0132 & 0.0089 & 0.0123 & 0.0093 & 0.0124 & 15.5958 & 0.0000 \\ \cline{2-7}  & 20s & 0.1132 & 0.0659 & 0.1402 & 0.1193 & 0.1365 & 0.1139 & \(-\)14.9812 & 0.0000 \\ \cline{2-7}  & 30s & 0.2350 & 0.0673 & 0.2306 & 0.1337 & 0.2312 & 0.1267 & 2.1891 & 0.0286 \\ \cline{2-7}  & 40s & 0.3201 & 0.0601 & 0.2528 & 0.1085 & 0.2619 & 0.1058 & 40.2355 & 0.0000 \\ \cline{2-7}  & \(\geq\)50s & 0.3199 & 0.1053 & 0.3675 & 0.2104 & 0.3610 & 0.2000 & \(-\)15.1047 & 0.0000 \\ \hline \multirow{5}{*}{Eonomy} & 10s & 0.0085 & 0.0148 & 0.0070 & 0.0133 & 0.0071 & 0.0134 & 5.1138 & 0.0000 \\ \cline{2-7}  & 20s & 0.1059 & 0.0608 & 0.1166 & 0.1082 & 0.1160 & 0.1060 & \(-\)4.6772 & 0.0000 \\ \cline{2-7}  & 30s & 0.2881 & 0.0724 & 0.2950 & 0.1418 & 0.2946 & 0.1387 & \(-\)2.2952 & 0.0217 \\ \cline{2-7}  & 40s & 0.3417 & 0.0583 & 0.3034 & 0.1199 & 0.3057 & 0.1175 & 15.0378 & 0.0000 \\ \cline{2-7}  & \(\geq\)50s & 0.2560 & 0.0883 & 0.2779 & 0.1800 & 0.2766 & 0.1760 & \(-\)5.737 & 0.0000 \\ \hline \multirow{5}{*}{Society} & 10s & 0.0233 & 0.0333 & 0.0122 & 0.0185 & 0.0132 & 0.0206 & 31.2967 & 0.0000 \\ \cline{2-7}  & 20s & 0.1677 & 0.1103 & 0.1601 & 0.1338 & 0.1608 & 0.1318 & 3.5588 & 0.0004 \\ \cline{2-7}  & 30s & 0.3167 & 0.0926 & 0.3077 & 0.1461 & 0.3086 & 0.1420 & 3.9659 & 0.0001 \\ \cline{2-7}  & 40s & 0.3034 & 0.0836 & 0.2701 & 0.1171 & 0.2732 & 0.1148 & 18.1868 & 0.0000 \\ \cline{2-7}  & \(\geq\)50s & 0.1879 & 0.1124 & 0.2499 & 0.1897 & 0.2441 & 0.1847 & \(-\)21.1782 & 0.0000 \\ \hline \multirow{5}{*}{Lifestyle/ Culture} & 10s & 0.0247 & 0.0226 & 0.0208 & 0.0267 & 0.0211 & 0.0265 & 4.271 & 0.0000 \\ \cline{2-7}  & 20s & 0.1897 & 0.0801 & 0.1787 & 0.1265 & 0.1794 & 0.1243 & 2.5924 & 0.0095 \\ \cline{2-7}  & 30s & 0.3464 & 0.0744 & 0.3113 & 0.1363 & 0.3134 & 0.1337 & 7.6971 & 0.0000 \\ \cline{2-7}  & 40s & 0.2761 & 0.0685 & 0.2647 & 0.1191 & 0.2654 & 0.1167 & 2.863 & 0.0042 \\ \cline{2-7}  & \(\geq\)50s & 0.1633 & 0.0864 & 0.2244 & 0.1716 & 0.2207 & 0.1683 & \(-\)10.6728 & 0.0000 \\ \hline \multirow{5}{*}{World} & 10s & 0.0219 & 0.0165 & 0.0184 & 0.0223 & 0.0186 & 0.0220 & 4.4732 & 0.0000 \\ \cline{2-7}  & 20s & 0.1617 & 0.0633 & 0.1762 & 0.1236 & 0.1752 & 0.1205 & \(-\)3.3929 & 0.0007 \\ \cline{1-1} \cline{2-7}  & 30s & 0.2875 & 0.0648 & 0.2541 & 0.1306 & 0.2564 & 0.1274 & 7.4201 & 0.0000 \\ \cline{1-1} \cline{2-7}  & 40s & 0.3060 & 0.0579 & 0.2630 & 0.1123 & 0.2659 & 0.1100 & 11.0682 & 0.0000 \\ \cline{1-1} \cline{2-7}  & \(\geq\)50s & 0.2230 & 0.0916 & 0.2883 & 0.1966 & 0.2838 & 0.1920 & \(-\)9.6401 & 0.0000 \\ \hline \hline \end{tabular}
\end{table} 
Table 8: Descriptive statistics on the three types of \(agerate_{section}(S,g)\) values and \(Z\)-test results for comparisons. \begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multirow{2}{*}{**Section \(S\)**} & \multirow{2}{*}{ \begin{tabular}{c} **Age** \\ **Group \(g\)** \\ \end{tabular}  } & \multicolumn{2}{c}{\ \begin{tabular}{c} **True Values of the** \\ **Labeled** \\ \end{tabular}  } & \multicolumn{2}{c}{ \begin{tabular}{c} **Predictions for the** \\ **Unlabeled** \\ \end{tabular}  } & \multicolumn{2}{c}{**Values of the Mixed**} & \multicolumn{2}{c}{**Z-Test**} \\ \cline{2-7}  & **Mean** & **S.D. ** & **Mean** & **S.D. ** & **Mean** & **S.D.