Future research need to base upon more large survey sample in individual level, or confirm other utility proxy, such as job satisfaction and subjective wellbeing.

未来亟需扩大样本量进行更大范围的实证研究，或验证其他效用代名词，如工作满意以及主观幸福感。

youdao

Selecting train sample on the basis of fuzzy C-mean clustering decreased subjective factor affecting selecting train sample, so higher classification accuracy can be achieved.

同时，在模糊C-均值聚类基础上选择训练样本比起直接基于真实地物图选择，减少了主观因素对训练样本选择的影响，因此取得了更高的分类精度。

youdao