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GEOINFORMATICA
2002
100views more  GEOINFORMATICA 2002»
13 years 10 months ago
Vagueness and Rough Location
This paper deals with the representation and the processing of information about spatial objects with indeterminate location like valleys or dunes (objects subject to vagueness). ...
Thomas Bittner, John G. Stell
RSFDGRC
2005
Springer
126views Data Mining» more  RSFDGRC 2005»
14 years 3 months ago
Rough Sets and Higher Order Vagueness
Abstract. We present a rough set approach to vague concept approximation within the adaptive learning framework. In particular, the role of extensions of approximation spaces in se...
Andrzej Skowron, Roman W. Swiniarski
INFORMATICALT
2008
162views more  INFORMATICALT 2008»
13 years 10 months ago
Vague Rough Set Techniques for Uncertainty Processing in Relational Database Model
Abstract. The study of databases began with the design of efficient storage and data sharing techniques for large amount of data. This paper concerns the processing of imprecision ...
Karan Singh, Samajh Singh Thakur, Mangi Lal
DLOG
2010
13 years 8 months ago
On the feasibility of Description Logic knowledge bases with rough concepts and vague instances
Abstract. A usage scenario of bio-ontologies is hypothesis testing, such as finding relationships or new subconcepts in the data linked to the ontology. Whilst validating the hypot...
C. Maria Keet
RSKT
2007
Springer
14 years 4 months ago
ROSA: An Algebra for Rough Spatial Objects in Databases
Abstract. A fundamental data modeling problem in geographical information systems and spatial database systems refers to an appropriate treatment of the vagueness or indeterminacy ...
Markus Schneider, Alejandro Pauly