  Inthispaperwedescribeaconcept-wisemulti-preferencesemantics for description
logic which has its root in the preferential approach for modeling defeasible
reasoning in knowledge representation. We argue that this proposal, beside
satisfying some desired properties, such as KLM postulates, and avoiding the
drowning problem, also defines a plausible notion of semantics. We motivate the
plausibility of the concept-wise multi-preference semantics by developing a
logical semantics of self-organising maps, which have been proposed as possible
candidates to explain the psychological mechanisms underlying category
generalisation, in terms of multi-preference interpretations.
