An optimized two-tier P2P architecture for contextualized keyword searches

  • Authors:
  • James Salter;Nick Antonopoulos

  • Affiliations:
  • Department of Computing, University of Surrey, Guildford, Surrey, United Kingdom;Department of Computing, University of Surrey, Guildford, Surrey, United Kingdom

  • Venue:
  • Future Generation Computer Systems - Special section: Information engineering and enterprise architecture in distributed computing environments
  • Year:
  • 2007

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Abstract

We describe a two-tiered P2P network for efficient lookup of contextualized data, utilizing an alternative strategy for building the network overlay designed to reduce the hops required to route lookups and improve fault tolerance by allowing the selection of nodes to build subrings. We show how the method is used to support context-keyword queries. Our calculations indicate that the technique yields improvements in the average query hop count while reducing the amount of state stored on each node. The use of Preference Lists can further reduce the average hop count through bypassing previously traversed segments of the structures