Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/646
Title: Classes of Spatiotemporal Objects and Their Closure Properties
Authors: Chomicki, Jan
HAESEVOETS, Sofie 
KUIJPERS, Bart 
REVESZ, Peter
Issue Date: 2003
Publisher: Springer-Verlag
Source: Annals of Mathematics and Artificial Intelligence, 39(4). p. 431-461
Abstract: We present a data model for spatio-temporal databases. In this model spatiotemporal data is represented as a finite union of objects described by means of a spatial reference object, a temporal object and a geometric transformation function that determines the change or movement of the reference object in time. We define a number of practically relevant classes of spatio-temporal objects, and give complete results concerning closure under Boolean set operators for these classes. Since only few classes are closed under all set operators, we suggest an extension of the model, which leads to better closure properties, and therefore increased practical applicability. We also discuss a normal form for this extended data model.
Document URI: http://hdl.handle.net/1942/646
ISSN: 1012-2443
e-ISSN: 1573-7470
DOI: 10.1023/A:1026086723558
ISI #: 000185647100003
Category: A1
Type: Journal Contribution
Validations: ecoom 2004
Appears in Collections:Research publications

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