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Multimedia Tools and Applications

, Volume 22, Issue 3, pp 235–262 | Cite as

Heuristics for Optimizing Multi-Clip Queries in Video Databases

  • Harald Kosch
  • Ahmed Mostefaoui
  • László Böszörményi
  • Lionel Brunie
Article

Abstract

In this paper we address the multi-clip query optimization problem where a multi-clip query requests multiple video clips. We propose a new heuristics called Restricted Search Interval that maximizes clip sharing between queries and consequently reduces the network bandwidth of a video server for a multicast system. An adaptation of our heuristics for optimizing the response time of the query is also presented. The experimental results show that the suggested heuristics reduces the server workload by about 28% on the average in comparison to a classical heuristic approach.

video databases video server multi-clip queries piggypacking 

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Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Harald Kosch
    • 1
  • Ahmed Mostefaoui
    • 2
  • László Böszörményi
    • 3
  • Lionel Brunie
    • 4
  1. 1.Institute of Information TechnologyUniversity KlagenfurtAustria
  2. 2.Computer Science Lab Franche-ComtéUniversity of MontbéliardFrance
  3. 3.Institute of Information TechnologyUniversity KlagenfurtAustria
  4. 4.Information Systems Engineering Laboratory, National Institute of Applied SciencesLyonFrance

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