A robust pre-fetching algorithm for scalable web contents and its performance evaluation

Zhou Su*, Jiro Katto, Yasuhiko Yasuda

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


In order to deliver multimedia contents to the end-users with low delay and acceptable quality, the pre-fetching technologies have been shown the efficiency if we can predict user's future requests and prefetch the data needed previously. However, because both the network topology and Web access are changed dynamically, whether the prefetching can get the stable performance under dynamic environment becomes an important issue. Therefore, this paper talks about the robustness of the prefetching algorithm, which has been proposed by us to deliver layered image contents over the Internet. Based on the web access distribution, the request pattern in the scalable imaging delivering system is analyzed in this paper. Furthermore, we check the robustness of our proposal by changing related parameters. Simulation results show that our proposal is stable against variable conditions even if access patterns are dynamically changed.

Original languageEnglish
Pages (from-to)4275-4282
Number of pages8
JournalInternational Journal of Innovative Computing, Information and Control
Issue number11
Publication statusPublished - 2009 Nov


  • Contents delivery
  • Hierarchical image coding
  • Pre-fetching
  • Web caching

ASJC Scopus subject areas

  • Software
  • Theoretical Computer Science
  • Information Systems
  • Computational Theory and Mathematics


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