DocumentCode
1987744
Title
Interval-set algebra for qualitative knowledge representation
Author
Yao, Y.Y.
Author_Institution
Dept. of Math. Sci., Lakehead Univ., Thunder Bay, Ont., Canada
fYear
1993
fDate
27-29 May 1993
Firstpage
370
Lastpage
374
Abstract
The notion of interval sets is introduced as a new kind of sets, represented by a pair of sets, namely, the lower and upper bounds. The interval-set algebra may be regarded as a counterpart of the interval-number algebra. It provides a useful tool to represent qualitative information. Operations on interval sets are also defined, based on the corresponding set-theoretic operations on their members. In addition, basic properties of interval-set algebra are examined, and the relationships between interval sets, rough sets and fuzzy sets are analyzed
Keywords
fuzzy set theory; inference mechanisms; knowledge representation; fuzzy sets; interval-number algebra; interval-set algebra; lower bounds; pair of sets; qualitative knowledge representation; rough sets; set-theoretic operations; upper bounds; Algebra; Arithmetic; Error analysis; Fuzzy sets; Information analysis; Knowledge representation; Lakes; Marine vehicles; Rough sets; Upper bound;
fLanguage
English
Publisher
ieee
Conference_Titel
Computing and Information, 1993. Proceedings ICCI '93., Fifth International Conference on
Conference_Location
Sudbury, Ont.
Print_ISBN
0-8186-4212-2
Type
conf
DOI
10.1109/ICCI.1993.315346
Filename
315346
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