Complexity analysis and optimization of the shortest path tour problem

被引:16
作者
Festa, Paola [1 ]
机构
[1] Univ Napoli FEDERICO II Compl MSA, Dept Math & Applicat, I-80126 Naples, Italy
关键词
Shortest path problems; Network flowproblems; Network optimization; Combinatorial optimization; ROUTE METHODS; ALGORITHMS; BUCKETS;
D O I
10.1007/s11590-010-0258-y
中图分类号
C93 [管理学]; O22 [运筹学];
学科分类号
070105 ; 12 ; 1201 ; 1202 ; 120202 ;
摘要
The shortest path tour problem (SPTP) consists in finding a shortest path from a given origination node s to a given destination node d in a directed graph with nonnegative arc lengths with the constraint that the optimal path P should successively and sequentially pass through at least one node from given node subsets T (1), T (2), . . . , T (N) , where T(i)boolean AND T(j)=empty set, (sic) i, j = 1, ..., N, i not equal j. In this paper, it will proved that the SPTP belongs to the complexity class P and several alternative techniques will be presented to solve it.
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页码:163 / 175
页数:13
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