Multi-ply Attribute Reduction in Information Concept Lattice
By using parent-child concept, a new discernibility matrix of information formal context is proposed, and the discernibility function of concepts and subconcept lattices (including concept lattice) are defined. Judgment theorems of consistent sets in information formal context and similarity concept in information concept lattice are examined. At the same time, an approach to calculating all attribute reductions of concepts and sub-concept lattices (including concept lattice) are formulated via the use of discernibility matrix and discernibility functions. Finally, a real example is used to demonstrate both its feasibility and effectiveness.
information formal context information concept lattice consistent set attribute reduction discernibility matrix
GUI Xian-cai
Mathematics and Computational Science School, Zhanjiang Normal University Zhanjiang,China
国际会议
厦门
英文
569-573
2010-10-29（万方平台首次上网日期，不代表论文的发表时间）