Title :
Study of topological relations between vague regions in discrete space based on rough sets
Author :
Gao, Zhenji ; Liu, Yu ; Zhou, Yueyong ; Qin, Shi
Author_Institution :
Inst. of Remote Sensing & Geogr. Inf. Syst., Peking Univ., Beijing, China
Abstract :
Rough model is proposed to build vague regions based on rough sets theory after the definition of rough regions, lower approximation regions, upper approximation regions and boundary regions is given. Then the constraints of lower and upper approximate regions are studied to minimize the research scope. With the combination of rough model and RCC-D-5, 73 topological relations are got between simple vague regions in raster regions and described by the 4×4 intersection and inclusion matrix.
Keywords :
geographic information systems; geophysical techniques; rough set theory; topology; boundary regions; discrete space; inclusion matrix; lower approximation regions; raster region; rough sets theory; topological relation; upper approximation regions; vague regions; Calculus; Data models; Fuzzy sets; Geographic Information Systems; Information science; Information systems; Pressing; Region 10; Remote sensing; Rough sets;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2005. IGARSS '05. Proceedings. 2005 IEEE International
Print_ISBN :
0-7803-9050-4
DOI :
10.1109/IGARSS.2005.1526247
