On the optimality of Bellman-Ford-Moore shortest path algorithm
On the optimality of Bellman-Ford-Moore shortest path algorithm
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DOI:
10.1016/j.tcs.2016.03.014
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发表时间:
2016-05-16
影响因子:
1.1
通讯作者:
Schnitger, Georg
中科院分区:
文献类型:
--
作者:
Jukna, Stasys;Schnitger, Georg
We prove a general lower bound on the size of switching-and-rectifier networks over any semiring of zero characteristic, including the (min, +) semiring. Using it, we show that the classical dynamic programming algorithm of Bellman, Ford and Moore for the shortest s-t path problem is optimal, if only Min and Sum operations are allowed. (C) 2016 Elsevier B.V. All rights reserved.