Cutello, V.Montero, JavierHirota, KaoruSugeno, Michio2023-06-202023-06-201995978-981-02-2345-8https://hdl.handle.net/20.500.14352/60891In this paper we will analyze some computational problems related with the use of OWA operators as information aggregators. In particular we will concentrate on ordered hierarchical aggregations of OWA operators as defined in [4].engbook parthttp://www.worldscientific.com/doi/abs/10.1142/9789812830753_0019http://www.worldscientific.com/open access519.8Aggregation operatorsCombinatorial optimizationInvestigación operativa (Matemáticas)1207 Investigación Operativa