“…In recent years, several researchers have demonstrated the applicability of pattern recognition methods based on arti® cial neural networks (ANNs) for solving the part± machine grouping problem (Dagli and Huggahalli 1991, 1995, Kaparthi and Suresh 1991, Malave and Ramachandran 1991, Burke and Kamal 1992, 1995, Venugopal and Narendran 1992, Chu 1993, Liao and Chen 1993, Rao and Gu 1994, 1995, Suresh and Kaparthi 1994, Chen and Cheng 1995, Malakooti and Yang 1995, Kamal and Burke 1996 . In particular, ANNs have been shown to be e ective for clustering large, industry-size data sets (Dagli and Sen 1992, Kaparthi and Suresh 1992, Kaparthi et al 1993, and Suresh and Kaparthi 1994.…”