A meta-index for querying distributed moving object database servers

  • Authors:
  • Mauricio Marin;M. Andrea Rodríguez

  • Affiliations:
  • University of Santiago of Chile, Chile;University of Concepcion, Chile

  • Venue:
  • Information Systems
  • Year:
  • 2010

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Abstract

Distributed moving object database servers offer a feasible solution to the scalability problems of centralized database systems. In these potentially large-scale systems, querying about the time-varying location of specific moving objects can be particularly expensive in terms of running time. This work proposes a meta-index based strategy that can significantly speed up the processing of these queries. The meta-index acts as an entry point for spatio-temporal queries and quickly drives the search process to the database servers that contain solutions. It also enables very fast approximated solutions to queries such as top-k and spatio-temporal range queries.