Results 121 to 130 of about 148,450 (186)

Variable Consistency Model of Dominance-Based Rough Sets Approach

Information Sciences, 2001
Consideration of preference-orders requires the use of an extended rough set model called Dominance-based Rough Set Approach (DRSA). The rough approximations defined within DRSA are based on consistency in the sense of dominance principle. It requires that objects having not-worse evaluation with respect to a set of considered criteria than a referent ...
GRECO, Salvatore   +3 more
  +6 more sources

Generalizing Rough Set Theory Through Dominance-Based Rough Set Approach

2005
Ordinal properties of data related to preferences have been taken into account in the Dominance-based Rough Set Approach (DRSA). We show that DRSA is also relevant in case where preferences are not considered but a kind of monotonicity relating attribute values is meaningful for the analysis of data at hand.
GRECO, Salvatore   +2 more
openaire   +3 more sources

On Topological Dominance-based Rough Set Approach

2010
In this article, we characterize the Dominance-based Rough Set Approach (DRSA) from the point of view of its topological properties. Using the concept of a bitopological space, we extend to DRSA the classical results known for the original rough set approach. Moreover, we introduce a topological approach to ordinal classification.
GRECO, Salvatore   +2 more
openaire   +3 more sources

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