Adaptive Replication Method Based on Peer Behavior Pattern in Unstructured Peer-to-Peer Systems

In this paper, we propose replication methods to perform effective document sharing on a peer-to-peer(P2P) system where peers frequently join and leave the system. The proposed method uses the relevancy and usefulness of peers to determine how many replications should be made, and where to locate these replications. This paper shows empirically that the proposed method improves the efficiency of query processing.