1. Buckinx, W., Van den Poel, D.: Customer base analysis: partial defection of behaviourally loyal clients in a non-contractual FMCG retail setting. Eur. J. Oper. Res. 164(1), 252–268 (2003)
2. Chang, H.J., Hung, L.P., Ho, C.L.: An anticipation model of potential customers’ purchasing behavior based on clustering analysis and association rules analysis. Expert Syst. Appl. 32(3), 753–764 (2007)
3. Cho, Y.S., Moon, S.C.: Weighted mining frequent pattern based customers RFM score for personalized ucommerce recommendation system. J. Converg. 42(4), 387–400 (2013)
4. Christy, A.J., Umamakeswari, A., Priyatharsini, L., Neyaa, A.: RFM ranking-an effective approach to customer segmentation. J. King Saud Univ.-Comput. Inf. Sci. 3(1), 57–63 (2018)
5. Dun, J.: Research on customer hierarchical management of Citic securities Donghai road business department. Lanzhou University Technology, pp. 10–12 (2018). (in Chinese)