We introduce a family of operators to combine Description Logic concepts. They aim to characterise complex concepts that apply to instances that satisfy "enough" of the concept descriptions given. For instance, an individual might not have any tusks, but still be considered an elephant. To formalise the meaning of "enough", the operators take a list of weighted concepts as arguments, and a certain threshold to be met. We commence a study of the formal properties of these operators, and study some variations. The intended applications concern the representation of cognitive aspects of classification tasks: the interdependencies among the attributes that define a concept, the prototype of a concept, and the typicality of the instances.
A toothful of concepts: Towards a theory of weighted concept combination
Contributo in atti di convegno
M. Jeusfeld c/o Redaktion Sun SITE, Informatik V, RWTH Aachen., Aachen, Germania
CEUR-WS.org, Aachen, DEU
32nd International Workshop on Description Logics, Oslo, Norway, June 18-21, 2019, Oslo, June 18-21, 2019
info:cnr-pdr/source/autori:Porello, Daniele; Kutz, Oliver; Righetti, Guendalina; Troquard, Nicolas; Galliani, Pietro; Masolo, Claudio/congresso_nome:32nd International Workshop on Description Logics, Oslo, Norway, June 18-21, 2019/congresso_luogo:Oslo/c