%0 Journal Article %A Cutello, V. %A Montero, Javier %T Nondeterministic aggregation operators and systems. %D 1998 %@ 0884-8173 %U https://hdl.handle.net/20.500.14352/57622 %X We will continue here the research work, the goal of which was to introduce the notion of nondeterministic aggregation operators and study their properties, even in relation to classification systems and the associated learning problem. Here we will concentrate mostly on the notion of the nondeterministic aggregation system and its relation with deterministic ones. We will also see how such a model extends a discretized version of a model of participatory learning with an arousal background mechanism. %~