1. Peng F (2017) Research on user portrait construction technology. Dalian University of technology
2. Lou W (2019) Research on enterprise portrait for credit investigation. Northwest University
3. Webb GI, Pazzani MJ, Billsus D (2001) Machine learning for user modeling. User Model User-Adap Inter 11(1–2):19–29
4. Degemmis M, Lops P, Semeraro G et al (2003) Extraction of user profiles by discovering preferences through machine learning. Intelligent information processing and web mining. Springer, Berlin
5. Tao K, Abel F, Gao Q et al (2011) TUMS: Twitter-based user modeling service. The semantic web: ESWC. Workshops 2011:269–283