Computer Science ›› 2015, Vol. 42 ›› Issue (1): 276-278.doi: 10.11896/j.issn.1002-137X.2015.01.061

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Knowledge Representation on Incomplete Formal Context

ZHI Hui-lai   

  • Online:2018-11-14 Published:2018-11-14

Abstract: Incomplete formal context contains uncertainty information,and thus knowledge representation on incomplete formal context and the one on complete formal context have distinction,and also have connection.In order to study their internal relationship,upper and lower approximate formal context,as well as upper and lower approximate concept lattice were defined respectively.Then a recognition method of rough concept was put forward.Moreover,the relationship between upper approximate concept lattice and lower approximate concept lattice was also studied.Conclusion shows that upper approximate concept lattice can be used as a knowledge representation tool for incomplete formal context.

Key words: Incomplete formal context,Rough concept,Exact concept,Concept lattice

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