Generalized best-first search strategies and the optimality of A*

@article{Dechter1985GeneralizedBS,
  title={Generalized best-first search strategies and the optimality of A*},
  author={R. Dechter and J. Pearl},
  journal={J. ACM},
  year={1985},
  volume={32},
  pages={505-536}
}
This paper reports several properties of heuristic best-first search strategies whose scoring functions ƒ depend on all the information available from each candidate path, not merely on the current cost g and the estimated completion cost h. It is shown that several known properties of A* retain their form (with the minmax of f playing the role of the optimal cost), which helps establish general tests of admissibility and general conditions for node expansion for these strategies. On the basis… Expand
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