## 4 Experiment and Result
### User Study
Moreover, around 94% of participants had never used a couplet generation system, reflecting the low influence of couplet culture in modern society and the scarcity of enthusiasts. The large gap between interest in creating couplets and the actual ability to do so suggests a pressing need to enhance the influence and accessibility of couplet culture. We can ascertain the following from Table 7: (1) Accuracy. All participant groups agreed that the generated couplets performed well in terms of format and basic grammatical rules. (2) Practicality. All groups considered the generated couplets to effectively meet the personalized needs, demonstrating high practical value. (3) Literary Quality. Except for the professor group, other groups rated the generated couplets favorably in terms of structural diversity and content creativity. Further investigation revealed that the professor group found some of the generated couplets' word choices are not elegant in Chinese and not in line with classical literary esthetics, which reduced their literary quality. This indicates that more literarily sophisticated groups pay closer attention to subtle details in couplets, highlighting the need for further enhancement in literary aspects. (4) Engagement. All groups gave high ratings for engagement. They agreed that by embedding characters and specifying themes in the couplets, they felt a personal connection to the creative outcome, which resulted in a greater sense of achievement and involvement. (5) Attractiveness. All groups indicated that the PCc generation system was highly attractive and that they would be willing to continue using it. They appreciated how the system reduced the difficulty of couplet creation, providing an opportunity for greater participation, which in turn increased their interest in using couplets. Additionally, they saw great value in the system for expressing emotions, conveying blessings, promoting causes, and in educational contexts. In conclusion, the experimental results show that our approach successfully lowers the difficulty of couplet creation while ensuring high practicality. This not only enhances the public's interest in couplet culture but also contributes to the education and transmission of couplet traditions. \begin{table}
\begin{tabular}{c c c c c} \hline  & **Knowledge** & **Ability** & **Experience** & **Interest** \\  & **(0–1)** & **(0–1)** & **(0–1)** & **(1–5)** \\ \hline \(Pu\) & 1 & 0 & 0 & 5 \\ \(Pm\) & 1 & 0 & 0 & 5 \\ \(Pd\) & 1 & 0 & 0 & 4.69 \\ \(Pp\) & 1 & 0.31 & 0.25 & 5 \\ \hline \end{tabular}
\end{table} 
Table 6: Pre-survey results. The higher score indicates a more positive opinion. \begin{table}
\begin{tabular}{c c c c c c} \hline  & **Accuracy** & **Practicality** & **Literary** & **Engage.** & **Attract.** \\  & **(1–5)** & **(1–5)** & **(1–5)** & **(1–5)** & **(1–5)** \\ \hline \(Pu\) & 4.38 & 4.53 & 4.75 & 4.78 & 5 \\ \(Pm\) & 4.84 & 4.84 & 4.31 & 5 & 5 \\ \(Pd\) & 4.22 & 4.94 & 4.22 & 4.75 & 5 \\ \(Pp\) & 3.91 & 4.63 & 3.75 & 4.84 & 4.91 \\ \hline \end{tabular}
\end{table} 
Table 7: Post-survey results. The final score was calculated as the mean of the total scores. 1—worst, 5—best.