Tianyi Jiang Alexander Tuzhilin Segmenting Customers from Population to Individuals: Does 1-to-1 Keep Your Customers Forever? 1297-1311 2006 18 IEEE Trans. Knowl. Data Eng. 10 http://doi.ieeecomputersociety.org/10.1109/TKDE.2006.164 db/journals/tkde/tkde18.html#JiangT06