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On the Complexity of Local Search for the Traveling Salesman Problem

Published: 01 March 1977 Publication History
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  • Abstract

    It is shown that, unless $P = NP$, local search algorithms for the traveling salesman problem having polynomial time complexity per iteration will generate solutions arbitrarily far from the optimal.

    References

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    Alfred V. Aho, John E. Hopcroft, Jeffrey D. Ullman, The design and analysis of computer algorithms, Addison-Wesley Publishing Co., Reading, Mass.-London-Amsterdam, 1975x+470
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    N. Christofides, 1976, Private communication, March
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    Shen Lin, Computer solutions of the traveling salesman problem, Bell System Tech. J., 44 (1965), 2245–2269
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    S. Lin, B. W. Kernighan, An effective heuristic algorithm for the traveling-salesman problem, Operations Res., 21 (1973), 498–516
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    C. H. Papadimitriou, The complexity of the local structure of certain convex polytopes, Proc. 1976 Conf. on Information Systems and Sci., Johns Hopkins Univ., Baltimore, Md., 1976, 47–51, March 31–April 2
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    D. J. Rosenkrantz, R. E. Stearns, P. M. Lewis, Approximate algorithms for the traveling salesperson problem, 15th Annual Symposium on Switching and Automata Theory (1974), IEEE Comput. Soc., Long Beach, Calif., 1974, 33–42, Oct. 14–16
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    Sartaj Sahni, Teofilo Gonzalez, P-complete approximation problems, J. Assoc. Comput. Mach., 23 (1976), 555–565
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    S. L. Savage, P. Weiner, M. J. Krone, Convergent local search, RR #14, Dept. of Comput. Sci., Yale Univ., New Haven, Conn., 1973
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    Stanley Reiter, Gordon Sherman, Discrete optimizing, J. Soc. Indust. Appl. Math., 13 (1965), 864–889
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    K. Steiglitz, P. Weiner, Some improved algorithms for computer solution of the traveling salesman problem, Proc. 6th Ann. Allerton Conf. on Circuit and System Theory, Univ. of Ill., Urbana, Ill., 1968, 814–821, Oct.
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    Sam Savage, Peter Weiner, A. Bagchi, Neighborhood search algorithms for guaranteeing optimal traveling salesman tours must be inefficient, J. Comput. System Sci., 12 (1976), 25–35

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    Published In

    cover image SIAM Journal on Computing
    SIAM Journal on Computing  Volume 6, Issue 1
    Mar 1977
    199 pages
    ISSN:0097-5397
    DOI:10.1137/smjcat.1977.6.issue-1
    Issue’s Table of Contents

    Publisher

    Society for Industrial and Applied Mathematics

    United States

    Publication History

    Published: 01 March 1977

    Author Tags

    1. traveling salesman problem
    2. local search
    3. complexity
    4. NP-complete

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