Representation and Manipulation of Geospatial Objects with Indeterminate Extents

Autor:	Vu Thi Hong Nhan, Keun Ho Ryu, Sang-Ho Kim
Rok vydání:	2005
Předmět:	Geospatial analysis Geographic information system Spatiotemporal database Computer science business.industry Fuzzy set Vagueness computer.software_genre Fuzzy logic ComputingMethodologies_GENERAL Data mining Data model (GIS) Representation (mathematics) business computer
Zdroj:	Web Technologies Research and Development-APWeb 2005 ISBN: 9783540252078 APWeb
DOI:	10.1007/978-3-540-31849-1_48
Popis:	A spatiotemporal database system manages data of geospatial objects whose geometry change over time and vagueness is their inherent nature. In this paper, we concentrate on the applications dealing with objects whose extents are indeterminate and change constantly. To support geographic information systems (GIS) in representing and handing such objects efficiently, we propose a fuzzy spatiotemporal data model called FSTDM based on fuzzy set theory. Also, we introduce algorithms for proceeding queries depending on whether the predicate is fuzzy spatial, temporal, or fuzzy spatiotemporal (FST). This work is applicable to many applications handling time-varying geospatial data, including global change (as in climate or land cover change), social (demographic, health, etc.) applications.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::739e5d2cacf9d24458548bda99ff4c3a https://doi.org/10.1007/978-3-540-31849-1_48 Zobrazit plný text záznamu