RT Journal Article T1 Hierarchical aggregation of OWA operators: basic measures and related computational problems. A1 Cutello, V. A1 Montero, 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 DS Docta Complutense RD 30 abr 2024