Title :
Attribute characters of formal contexts under homomorphisms
Author :
Hong-Zhi Yang ; Ming-Wen Shao
Author_Institution :
Fac. of Sci., Xi´an Jiaotong Univ., Shaan´xi
Abstract :
In the paper, we introduce the notion of an formal contexts homomorphisms, which is a powerful tool to study the relation between two formal contexts. Based on the notion of homomorphisms of formal contexts, we discuss the invariant characters of formal contexts under homomorphisms, and reveal the relation of attributes characters and formal concepts between two formal contexts under homomorphisms and isomorphisms.
Keywords :
data mining; formal logic; formal contexts; homomorphisms; isomorphisms; Application software; Data analysis; Database systems; Finance; Information retrieval; Information technology; Knowledge representation; Lattices; Logic; Power generation economics;
Conference_Titel :
Granular Computing, 2008. GrC 2008. IEEE International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-2512-9
Electronic_ISBN :
978-1-4244-2513-6
DOI :
10.1109/GRC.2008.4664756
