A fast search strategy to optimise path founding in big data graph computing environments
by Wentian Qu; Dawei Sun
International Journal of Wireless and Mobile Computing (IJWMC), Vol. 13, No. 2, 2017

Abstract: In big data graph computing environments, the shortest path problem is very important and widely applied in various scenarios. But sometimes, in order to find the shortest path, it always entails a lot of cost. So, weighing the various aspects of the problems, it's a good choice to find optimal path. In this paper, an improved A-star algorithm is proposed to define the optimal path. A-star algorithm has two kinds of parameters named actual cost and estimated cost and the second one plays an important part in the algorithm. Based on the traditional A-star algorithm, this paper will propose new parameters and improved heuristic function to enhance the performance of the A-star algorithm. Compared with the traditional A-star algorithm, the simulation experiment shows that the improved A-star algorithm runs at high efficiency. Two factors which affect the best situation are also discussed in the end of this paper.

Online publication date: Mon, 20-Nov-2017

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