Categories are not invariant. This paper attempts to explore the dynamic nature of semantic category, in particular, that of fashion language, based on the cognitive theory of Dawkins’ memetics, a new theory of cultural evolution. Semantic attributes of linguistic memes decrease or proliferate in replication and spreading, which involves a dynamic development of semantic category. More specific...

beliefs about the implications of causal structure. This suggestion has met with

According to the theory-based approach to categorization, explanatory knowledge plays a critical role in supporting categorization decisions. This paper presents and tests a version of this view—the Explanation-Mapping hypothesis—that integrates explanation with a model of the structure-sensitive comparison processes that may underlie theory-based categorization decisions. Two experiments test ...

The AI system NARS contains a categorization model, in the sense that categorization and reasoning are two aspects of the same mechanism. As a theory of categorization, the NARS model unifies several existing theories. In this paper, the logic used in NARS is briefly described, and the categorization model is compared with the others.