Study of several points on the action fuzzy region of sample value differential relay;

Description of topological relation within fuzzy region in GIS;

Mapkob model at thinking fuzzy region demonstrates that the latter is better than the former.

A fuzzy spatial region model was proposed based on flou set and the property of fuzzy regions was analyzed.

Also,we use fuzzy interval method and regression analysis method to rank auording to their levels,and the rationality of this rank is discussed.

In view of the characteristic that included both fuzzy interval data and qualitative variable in the index system,the model can synthesize the quantify attribute and the qualitative attribute as well.

With the aggregates of land resources as the object of study and based on the Fuzzy regional division of various types of productive forces, the potential land productivity,foodstructure and population Supporting capacity on Hainan Island are computed,with considering the input and transformation of material and energy of land resources.

Combinational reasoning based on spatial directional and topological relations in fuzzy regions;

Spatial description and reasoning of spatial objects of fuzzy regions are a hot issue in GIS in recent years.

The modeling of topological relations between fuzzy regions is getting more imperative and thus has attracted plenty of attentions from researchers.