Hu, Rong, Yiting Guo, Yunxia Cheng, Yuzhu Zhang, and Shuang Liu. “Research on Patient Information Demand Preference in Network Health Community Based on TF-IDF Algorithm and BTM Model”. Transactions on Computer Science and Intelligent Systems Research 2 (December 21, 2023): 152–156. Accessed May 30, 2026. https://wepub.org/index.php/TCSISR/article/view/370.