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Scalable Semantic Overlay Generation for P2P-Based Digital Libraries

  • Christos Doulkeridis
  • Kjetil Nørvåg
  • Michalis Vazirgiannis
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4172)

Abstract

The advent of digital libraries along with the tremendous growth of digital content call for distributed and scalable approaches for managing vast data collections. Peer-to-peer (P2P) networks emerge as a promising solution to delve with these challenges. However, the lack of global content/topology knowledge in an unstructured P2P system demands unsupervised methods for content organization and necessitates efficient and high quality search mechanisms. Towards this end, Semantic Overlay Networks (SONs) have been proposed in the literature, and in this paper, an unsupervised method for decentralized and distributed generation of SONs, called DESENT, is proposed. We prove the feasibility of our approach through analytical cost models and we show through simulations that, when compared to flooding, our approach improves recall by more than 3-10 times, depending on the network topology.

Keywords

Feature Vector Digital Library Zone Size Overlay Network Cluster Quality 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Christos Doulkeridis
    • 1
  • Kjetil Nørvåg
    • 2
  • Michalis Vazirgiannis
    • 1
  1. 1.Dept. of InformaticsAUEBAthensGreece
  2. 2.Dept. of Computer ScienceNTNUTrondheimNorway

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