Query answering in peer-to-peer data exchange systems

  • Authors:
  • Leopoldo Bertossi;Loreto Bravo

  • Affiliations:
  • School of Computer Science, Carleton University, Ottawa, Canada;School of Computer Science, Carleton University, Ottawa, Canada

  • Venue:
  • EDBT'04 Proceedings of the 2004 international conference on Current Trends in Database Technology
  • Year:
  • 2004

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Abstract

The problem of answering queries posed to a peer who is a member of a peer-to-peer data exchange system is studied The answers have to be consistent wrt to both the local semantic constraints and the data exchange constraints with other peers; and must also respect certain trust relationships between peers A semantics for peer consistent answers under exchange constraints and trust relationships is introduced and some techniques for obtaining those answers are presented.