疫情背景下快递物流服务的用户行为画像及主题挖掘研究
李继玲, 李宝林, 严宋如
Research on user behavior portrait and subject mining in the express logistics field during Coronavirus epidemic
Jiling LI, Baolin LI, Songru YAN
华东师范大学学报（自然科学版） . 2022, (5): 100 -114 .  DOI: 10.3969/j.issn.1000-5641.2022.05.009