Franconi, Enrico and Kuper, Gabriel and Lopatenko, Andrei and Serafini, Luciano (2003) A Robust Logical and Computational Characterisation of Peer-to-Peer Database Systems. UNSPECIFIED.
In this paper we give a robust logical and computational characterisation of peer-to-peer (p2p) database systems. We first define a precise model-theoretic semantics of a p2p system, which allows for local inconsistency handling. We then characterise the general computational properties for the problem of answering queries to such a p2p system. Finally, we devise tight complexity bounds and distributed procedures for the problem of answering queries in few relevant special cases.
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