RT Journal Article T1 Hierarchical aggregation of OWA operators: basic measures and related computational problems. A1 Cutello, Vincenzo A1 Montero De Juan, Francisco Javier AB In this paper we will analyze some computational problems related with ordered hierarchical aggregations of OWA operators as defined by the authors in a previous paper. In particular, we will provide polynomial algorithms to maximize or minimize the degrees of dispersion and orness of the hierarchical OWA aggregation. PB World Scientific Publ Co Pte Ltd SN 0218-4885 YR 1995 FD 1995 LK https://hdl.handle.net/20.500.14352/57635 UL https://hdl.handle.net/20.500.14352/57635 LA eng NO Cutello, V., Montero, J.: HIERARCHICAL AGGREGATION OF OWA OPERATORS: BASIC MEASURES AND RELATED COMPUTATIONAL PROBLEMS. Int. J. Unc. Fuzz. Knowl. Based Syst. 03, 17-26 (1995). https://doi.org/10.1142/S0218488595000037 DS Docta Complutense RD 10 abr 2025