Reverse nearest neighbor search in peer-to-peer systems

Abstract

Given a query point Q, a Reverse Nearest Neighbor (RNN) Query returns all points in the database having Q as their nearest neighbor. The problem of RNN query has received much attention in a centralized database. However, not so much work has been done on this topic in the context of Peer-to-Peer (P2P) systems. In this paper, we shall do pioneering work on supporting distributed RNN query in large distributed and dynamic P2P networks. Our proposed RNN query algorithms are based on a distributed multi-dimensional index structure, called P2PRdNN-tree, which is relying on a super-peer-based P2P overlay. The results of our performance evaluation with real spatial data sets show that our proposed algorithms are indeed practically feasible for answering distributed RNN query in P2P systems. " Springer-Verlag Berlin Heidelberg 2006.