فهرس المقالات Yan-Kang Li المقاله 1 - Using Fuzzy C-means to Discover Concept-drift Patterns for Membership Functions 10.30495/tfss.2022.1958730.1030 Tzung-Pei Hong Chun-Hao Chen Yan-Kang Li Min-Thai Wu Transactions on Fuzzy Sets and Systems , العدد 2 , السنة 1 , پاییز-زمستان 2022