|Title||Upward refinement operators for conceptual blending in the description logic EL++|
|Publication Type||Journal Article|
|Year of Publication||2018|
|Authors||Confalonieri R, Eppe M, Schorlemmer M, Kutz O, Peñaloza R, Plaza E|
|Journal||Annals of Mathematics and Artificial Intelligence|
Conceptual blending is a mental process that serves a variety of cognitive purposes, including human creativity. In this line of thinking, human creativity is modeled as a process that takes different mental spaces as input and combines them into a new mental space, called a blend. According to this form of combinational creativity, a blend is constructed by taking the commonalities among the input mental spaces into account, to form a so-called generic space, and by projecting the non-common structure of the input spaces in a selective way to the novel blended space. Since input spaces for interesting blends are often initially incompatible, a generalisation step is needed before they can be blended. In this paper, we apply this idea to blend input spaces specified in the description logic $\mathcalEL^++$ and propose an upward refinement operator for generalising $\mathcalEL^++$ concepts. We show how the generalisation operator is translated to Answer Set Programming (ASP) in order to implement a search process that finds possible generalisations of input concepts. The generalisations obtained by the ASP process are used in a conceptual blending algorithm that generates and evaluates possible combinations of blends. We exemplify our approach in the domain of computer icons.
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