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Home > Archive>Volume 3, Issue 1, 1992 >49-54
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PROPAGATIONAL HEURISTIC GRAPH SEARCH ALGORITHMS PRA AND PRA
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    Abstract:

    In this paper, two new propagational heuristic graph search algorithms PRA and PRA* are presented, based on the concept of propagation. Algorithm PRA* is admissible, and it has an advantage over algorithm RA* on run time. Based on the concept of tie-resolution, the relation theorem between RA s run time and PRA s run time is investigated.

    Reference
    [1] 王士同，随机产生式系统的启发式图搜索算法RA*A*的推广，计算机学报，1988．5．
    [2] A．Martelli，On the Complexity of Admissible Search Algorithms，Artificial Intelligence，No．8，1977．
    [3] 王士同，启发式算法RA*的改进算法IRA*及IRA'，计算机学报，1991．3．
    [4] 王士同，AND/OR图的新的启发式图搜索算法NAO*，计算机学报，1991．1．
    [5] N．J．Nilsson，Principles of Artificial Intelligence，Tioge Publishing Co．1980．
    [6] J．Pearl，HEURISTICS，Intelligent Search Strategies for Computer Problem Solving，Addison-Wesley Press，1984．
    [7] 王士同等，模糊数学在人工智能中的应用，机械工业出版社，1990年.
    [8] 王士同著，人工智能中的模糊启发式搜索技术，机械工业出版社，1992．
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王士同.传播式启发式图搜索算法PRA及PRA.软件学报,1992,3(1):49-54

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History
  • Received:February 21,1990
  • Revised:June 29,1990
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