NDLI: Towards a spatio-temporal OQL for the four dimensional spatial database system Hawks

Content Provider	IEEE Xplore Digital Library
Author	Kuroki, S. Makinouchi, A. Ishizuka, K.
Copyright Year	1997
Description	Author affiliation: Dept. of Intelligent Syst., Kyushu Univ., Fukuoka, Japan (Kuroki, S.)
Abstract	Discusses a spatio-temporal object query language (OQL), which treats spatial data and temporal data in the same way. We address spatial, temporal and spatio-temporal predicates and operators, and then show the queries in the spatio-temporal OQL and the ones in the internal expression of the spatio-temporal database system Hawks. This language is going to be implemented in INADA/ODMG, which is a database programming language based on C++ and which provides the C++ bindings of the ODMG-93 Object Database Standard. The expressions, in which spatio-temporal objects are defined as the figures of the 4D topological space resulting from the direct product of the 3D space and time, are used to retrieve those spatio-temporal objects which satisfy a condition.
Starting Page	142
Ending Page	147
File Size	490041
Page Count	6
File Format	PDF
ISBN	0818681470
DOI	10.1109/DEXA.1997.617256
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-09-01
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Database systems Spatial databases Object oriented modeling Information retrieval Object oriented databases Database languages Intelligent systems Deductive databases Information science Application software
Content Type	Text
Resource Type	Article

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