Basic level of concepts and formal concept analysis 2: examination of existing basic level metrics

Abstract

We exploit the framework developed in the first part of our paper to examine significant approaches to the basic level of concepts proposed in psychological literature. These approaches are mostly presented informally in the literature and we hence provide their formalization. Our formalization and experiments reveal previously unknown relationships between existing approaches to basic level, some of which contradict current psychological beliefs. We argue that from a general perspective, formalization of basic level and related phenomena in the framework of formal concept analysis is beneficial for psychological explorations themselves because it helps put them on a solid ground.