A Survey of Formal Concept Analysis and Concept Lattices

Formal concept is the basic unit of knowledge representation. Concept lattice comes from formal concept analysis theory, which is the ordered hierarchy of all formal concepts. Concept lattice structure model is a powerful tool for data analysis. In recent years, due to the visualization of concept lattices and the clarity of knowledge discovery, FCA has developed into an effective tool for data analysis, and has been widely used in various fields such as data mining, information retrieval, software engineering, etc., and it has achieved good economic and social benefits. Therefore, it is necessary to study the theory of formal concept analysis. At the same time, in order to meet the different needs of life, different kinds of formal concept analysis also emerged. This paper mainly analyzes the current research status of several mainstream concept analysis theories, and puts forward the prospect of them.