Efficient Query Processing in Large Traffic Networks

Abstract-- We present an original graph embedding to speedup distance-range and k-nearest neighbor queries on static and/or dynamic objects located on a (weighted) graph. Our method is used to compute a lower and upper bounding filter distance which approximates the true shortest path distance significantly better than traditional filters. In addition, we discuss how the computation of the exact shortest path distance in the refinement step can be boosted by using the embedded graph.

• Type: Conference
• Year: 2008
• Where: ICDE
• Authors: Hans-Peter Kriegel, Matthias Renz, Peer Kröger, Peter Kunath, Tim Schmidt
• Keywords: Database, Exact Shortest Path, ICDE 2008, Shortest Path Distance, True Shortest Path