Dependence and Algebraic Structure of Formal Contexts

  • Tong-Jun Li
  • Ying-Xue Wu
  • Xiaoping Yang
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6954)

Abstract

Formal concept analysis is an important approach of knowledge representation and data analysis. This paper focus on the dependence among formal contexts with common object set. A partial order relation among formal contexts is first introduced and its properties are examined. Subsequently, The notion of independence of a formal context is proposed by which attribute reduction of formal context is investigated. An useful conclusion is obtained, that is, all formal contexts with common object set form a lattice.

Keywords

Formal contexts Concept lattices Dependence Algebraic structure 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Tong-Jun Li
    • 1
  • Ying-Xue Wu
    • 1
  • Xiaoping Yang
    • 1
  1. 1.School of Mathematics,Physics and Information ScienceZhejiang Ocean UniversityZhoushanP.R. China

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