501 search results - page 4 / 101 » Rough Sets and Approximation Schemes |
ACM
1995
13 years 11 months ago
1995
We study properties of rough sets, that is, approximations to sets of records in a database or, more formally, to subsets of the universe of an information system. A rough set is a...
ISMIS
2005
Springer
14 years 29 days ago
2005
Springer
Abstract. Subsystem based generalizations of rough set approximations are investigated. Instead of using an equivalence relation, an arbitrary binary relation is used to construct ...
RSCTC
2000
Springer
13 years 11 months ago
2000
Springer
Abstract. In spatial reasoning the qualitative description of relations between spatial regions is of practical importance and has been widely studied. Examples of such relations a...
TSDM
2000
13 years 11 months ago
2000
In this paper I define spatio-temporal regions as pairs consisting of a spatial and a temporal component and I define topological relations between them. Using the notion of rough ...
IAT
2006
IEEE
14 years 1 months ago
2006
IEEE