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A Parallel Shortest Path Algorithm Based on Graph-Partitioning and Iterative Correcting

In this paper, we focus on satisfying the actual demands of quickly finding the shortest paths over real-road networks in an intelligent transportation system. A parallel shortest path algorithm based on graph partitioning and iterative correcting is proposed. After evaluating the algorithm using three real road networks, we conclude that our graph-partitioning and iterative correcting based parallel algorithm has good performance. In addition, it achieves more than a 15-fold speedup on 16 processors in an IBM cluster over these real road networks.