Fuzzy Clustering and Aggregation of Relational Data With Instance-Level Constraints.

Hichem Frigui Cheul Hwang Fuzzy Clustering and Aggregation of Relational Data With Instance-Level Constraints. 1565-1581 2008 16 IEEE T. Fuzzy Systems 6 http://dx.doi.org/10.1109/TFUZZ.2008.2005692 db/journals/tfs/tfs16.html#FriguiH08