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FUZZIEEE
2007
IEEE
13 years 10 months ago
Metrics for Vague Spatial Objects Based on the Concept of Mass
Abstract— Many spatial phenomena exhibit vagueness. Representation of such phenomena requires vague objects. In previous work, we provided definitions for vague objects: vague p...
Arta Dilo, Rolf A. de By, Alfred Stein
SSD
2005
Springer
108views Database» more  SSD 2005»
13 years 9 months ago
Topological Predicates Between Vague Spatial Objects
Topological predicates are an important element of database systems that allow manipulation of spatial data. Based on the necessity for such systems to handle uncertainty, we intro...
Alejandro Pauly, Markus Schneider
AI
2004
Springer
13 years 9 months ago
Spatio-temporal Reasoning for Vague Regions
Abstract. This paper extends a mereotopological theory of spatiotemporal reasoning to vague ”egg-yolk” regions. In this extension, the egg and its yolk are allowed to move and ...
Zina M. Ibrahim, Ahmed Y. Tawfik
RSFDGRC
2005
Springer
126views Data Mining» more  RSFDGRC 2005»
13 years 9 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
SSD
1997
Springer
103views Database» more  SSD 1997»
13 years 8 months ago
Vague Regions
Abstract: In many geographical applications there is a need to model spatial phenomena not simply by sharp objects but rather through indeterminate or vague concepts. To support su...
Martin Erwig, Markus Schneider