Research on combined formal context

Author

Li, Mei-Zheng ; Yang, Hong-Qiang ; Pei, Duo ; Mi, Ju-Sheng

Author_Institution

Coll. of Math. & Inf. Sci., Hebei Normal Univ., Shijiazhuang, China

fYear

2011

fDate

8-10 Nov. 2011

Firstpage

384

Lastpage

389

Abstract

Currently, there are many ways to generate new formal contexts from the original ones. Among these ways, combining formal contexts is the simplest one. This paper mainly discusses the attribute characteristics in the composition of two formal contexts, which is called the combined formal context. It is proved that there exists a strong connection between the attribute characteristics in a combined context and those in the original contexts. Besides, some knowledge acquisition rules from the combined formal context are obtained by the rules from the original contexts. Furthermore, the relationships between the irreducible attributes of the combined context and those of the original contexts are studied.

Keywords

data mining; formal concept analysis; combined formal context; irreducible attribute; knowledge acquisition rule; Context; Educational institutions; Electronic mail; Information science; Knowledge representation; Lattices; Combined contexts; attribute characteristics; implications between attributes; irreducible attributes;

fLanguage

English

Publisher

ieee

Conference_Titel

Granular Computing (GrC), 2011 IEEE International Conference on

Conference_Location

Kaohsiung

Print_ISBN

978-1-4577-0372-0

Type

conf

DOI

10.1109/GRC.2011.6122627

Filename

6122627