Title :
Spatio-temporal geographical entity and a self-contained frame of spatio-temporal queries
Author :
Wang, Xiaodong ; Mao, Qizhi ; Gong, Jiawei
Author_Institution :
Inst. of Archit. & Urban Studies (IAUS), Tsinghua Univ., Beijing, China
Abstract :
Query functions decide the design of the TGIS data model to a certain extent. A self-contained frame of spatiotemporal queries (SCFSTQ) is needed to design a TGIS. A spatio-temporal geographical entity (STGE) is proposed, which includes absolute geographical entity (AGE), geographical state entity (GSE) and geographical event entity (GEE). A SCFSTQ is obtained based on Sintons´ research and STGE. Existing TGIS data models and system structures are analyzed from the point of view of the SCFSTQ and STGE. A basic methodology for designing TGIS is given. Using a dynamic monitoring land use database as an example, the basic idea of a comprehensive spatio-temporal data model (CSTDM) is described
Keywords :
data models; geographic information systems; query processing; temporal databases; visual databases; TGIS data model; absolute geographical entity; dynamic monitoring land use database; geographical event entity; geographical state entity; query functions; self-contained spatio-temporal query frame; spatio-temporal data model; spatio-temporal geographical entity; Data models; Databases; Electronic mail; Geographic Information Systems; Humans; Monitoring; Space technology; Spatiotemporal phenomena; Vehicle dynamics; Vehicles;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.977129
