Supporting Direction Relations in Spatial Database Systems

Theodoridis, Y; Papadias, D; Stefanakis, E

dc.contributor.author	Theodoridis, Y	en
dc.contributor.author	Papadias, D	en
dc.contributor.author	Stefanakis, E	en
dc.date.accessioned	2014-03-01T01:43:32Z
dc.date.available	2014-03-01T01:43:32Z
dc.date.issued	1995	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/24135
dc.relation.uri	http://reference.kfupm.edu.sa/content/s/u/supporting_direction_relations_in_spatia_1201462.pdf	en
dc.subject	Geographic Information System	en
dc.subject	Indexing Method	en
dc.subject	Query Processing	en
dc.subject	Spatial Database	en
dc.title	Supporting Direction Relations in Spatial Database Systems	en
heal.type	journalArticle	en
heal.publicationDate	1995	en
heal.abstract	Direction relations (e.g., north, northeast) constitute an important class of user queries in Spatial Databases and Geographic Information Systems. However, little work has been done on the formalization and efficient processing of such relations. In this paper we define direction relations between two-dimensional objects and we show how they can be efficiently retrieved in existing DBMSs using alternative indexing methods.	en