Topological Relations Model of Fuzzy Regions Based on Interval Valued Fuzzy Sets
Jihong Ouyang · Dianzi xuebao · 2005
In the applications of GIS,the attribute data of sample point isn't often precise value,but an interval range.The modeling,analyzing and reasoning of this kind of data has gained more and more attention from researchers.The method describes the fuzzy regions determined by indeterminate attribute value using interval valued fuzzy sets.Based on the operation property of interval value and interval valued fuzzy sets,the analyzing model of topological relations between fuzzy regions is proposed.It improves the original topological relations model that use traditional fuzzy set and cut-set.The analysis result accords with the cognitive principle of people and can be used to reasoning and make decision.It can efficiently judge the topological relations between fuzzy regions determined by interval-valued attribute and it is valuable in the fields such as GIS,geography and spatial databases.