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» Rough Sets and Approximation Schemes
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RSCTC
2004
Springer
116views Fuzzy Logic» more  RSCTC 2004»
14 years 3 months ago
Constrained Sums of Information Systems
We study properties of infomorphisms between information systems. In particular, we interpret infomorphisms between information systems in terms of sums with constraints (constrain...
Andrzej Skowron, Jaroslaw Stepaniuk
RSCTC
2004
Springer
144views Fuzzy Logic» more  RSCTC 2004»
14 years 3 months ago
Approximation Spaces and Information Granulation
Abstract. In this paper, we discuss approximation spaces in a granular computing framework. Such approximation spaces generalise the approaches to concept approximation existing in...
Andrzej Skowron, Roman W. Swiniarski, Piotr Synak
TIP
2002
133views more  TIP 2002»
13 years 9 months ago
Wavelet-based rotational invariant roughness features for texture classification and segmentation
In this paper, we introduce a rotational invariant feature set for texture segmentation and classification, based on an extension of fractal dimension (FD) features. The FD extract...
Dimitrios Charalampidis, Takis Kasparis
ICCBR
2001
Springer
14 years 2 months ago
A Fuzzy-Rough Approach for Case Base Maintenance
Abstract. This paper proposes a fuzzy-rough method of maintaining CaseBased Reasoning (CBR) systems. The methodology is mainly based on the idea that a large case library can be tr...
Guoqing Cao, Simon C. K. Shiu, Xizhao Wang
FUIN
2006
88views more  FUIN 2006»
13 years 9 months ago
Calculi of Approximation Spaces
This paper considers the problem of how to establish calculi of approximation spaces. Approximation spaces considered in the context of rough sets were introduced by Zdzislaw Pawla...
Andrzej Skowron, Jaroslaw Stepaniuk, James F. Pete...