Encyclopedia of Database Systems

2018 Edition
| Editors: Ling Liu, M. Tamer Özsu

Moving Object

  • Ralf Hartmut Güting
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-8265-9_1361

Synonyms

Time dependent geometry

Definition

A moving object is essentially a time dependent geometry. Moving objects are the entities represented and queried in moving objects databases.

Key Points

The term emphasizes the fact that geometries may change continuously (whereas earlier work on spatio-temporal databases allowed only discrete changes, e.g., of land parcels). One can distinguish between moving objects for which only the time dependent position is of interest and those for which also shape and extent are relevant and may change over time. The first can be characterized as moving points, the second as moving regions. For example, moving points could represent people, vehicles (such as cars, trucks, ships or air planes), or animals. Moving regions could be hurricanes, forest fires, spread of epidemic diseases etc. Moving point data may be captured by GPS devices or RFID tags; moving region data may result from processing sequences of satellite images, for example. Moving...

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Recommended Reading

  1. 1.
    Güting RH, Böhlen MH, Erwig M, Jensen CS, Lorentzos NA, Schneider M, Vazirgiannis M. A foundation for representing and querying moving objects in databases. ACM Trans Database Syst. 2000;25(1):1–42.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Fakultät für Mathematik und InformatikFernuniversität HagenHagenGermany
  2. 2.Computer ScienceUniversity of HagenHagenGermany

Section editors and affiliations

  • Ouri Wolfson
    • 1
  1. 1.Mobile Information Systems Center (MOBIS)The University of Illinois at ChicagoChicagoUSA