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http://hdl.handle.net/1942/7901
Title: | Trajectory databases: data models, uncertainty and complete query languages | Authors: | KUIJPERS, Bart OTHMAN, Walied |
Issue Date: | 2007 | Publisher: | Springer-Verlag | Source: | Proceedings of 11th International Conference on Database Theory (ICDT'07). p. 224-238 | Series/Report: | Lecture Notes in Computer Science | Series/Report no.: | 4353 | Abstract: | Moving ob jects produce tra jectories. We describe a data model for tra jectories and tra jectory samples and an efficient way of mod- eling uncertainty via beads for tra jectory samples. We study transfor- mations for which important physical properties of tra jectories, such as speed, are invariant. We also determine which transformations preserve beads. We give conceptually easy first-order complete query languages and computationally complete query languages for tra jectory databases, which allow to talk directly about speed and beads. The queries express- ible in these languages are invariant under speed- and bead-preserving transformations. | Keywords: | moving object databases, constraint databases | Document URI: | http://hdl.handle.net/1942/7901 | ISBN: | 3-540-69269-X | DOI: | 10.1007/11965893_16 | ISI #: | 000244800500016 | Category: | C1 | Type: | Proceedings Paper |
Appears in Collections: | Research publications |
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07-ICDT.pdf | 216.36 kB | Adobe PDF | View/Open |
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