—A new invention of satellite hyper spectral (HS) sensors can acquire very comprehensive shadowlike information directly related to land surface materials. Change Detection (CD) is the procedure that recognizes the changes occurred between more than two images based on the image assets. In case like tragedy management, the quick and accurate discovery of precious regions in images obtained at t...

Combining an open source Geographical Information System like GRASS-GIS, Mapserver, and the computer languages Perl and PHP it was developed a flexible Decision Support System (DSS) based on fuzzy logic. The DSS researched use data gathered from a current research and demonstration project, concerning the distribution of the Olive fruit fly (Bactrocera oleae) according to several environmental ...

Uncertainty management for geometric data is currently an important problem in spatial databases, image databases, and Geographic Information Systems (GIS). Spatial entities do not always have homogeneous interiors and sharply defined boundaries but frequently their interiors and boundaries are partially or totally indeterminate and vague. For an important kind of spatial vagueness called spati...

Since the early 1990s, the mathematical models have been developed and applied to landslide hazard mapping using GIS. Among various models, this paper discusses the effectiveness of fuzzy set theory for landslide hazard mapping. In this study, we collected several data sets related to landslide occurrences in Boeun, Korea, and then digitally represented as the fuzzy membership functions. To int...

Humans’ representation in nature language about geographic phenomena is usually qualitative rather than quantitative. Qualitative spatial reasoning provides an approach which is considered to be closer to the representation. Commercial GIS software are confronted with a challenge that the software should be equipped with artificial intelligent functions like qualitative spatial reasoning for mo...

Uncertainty management for geometric data is currently an important problem in spatial databases, image databases, and GIS. Spatial objects do not always have homogeneous interiors and sharply defined boundaries but frequently their interiors and boundaries are partially or totally indeterminate and vague. For an important kind of spatial vagueness called fuzziness this paper provides a concept...