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International Conference on Knowledge Based Computer Systems

KBCS 1989: Knowledge Based Computer Systems pp 439–450Cite as

Network search with inadmissible heuristics

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Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 444))

Abstract

A new arc-marking algorithm, namely MarkC is presented. MarkC uses the run-time heuristic modification scheme (due to Mero), and the node selection criterion of AlgorithmC (due to Bagchi and Mahanti). AlgorithmC, based on the node expansion scheme, has some important properties under general inadmissible heuristics. AlgorithmC always finds a least costly solution path of V (an implicitly defined set of nodes) and makes O(N2) node expansions at the worst. It is shown that MarkC retains all the merits of C, yet it does not iterate more number of times than C. But there are examples where C can make some more iterations than MarkC. Finally, a comparative study is presented by summarizing the results on Algorithms MarkA, C, and MarkC.

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References

  1. Bagchi A and Mahanti A. Search Algorithms Under Different Kinds of Heuristics — A Comparative Study, JACM 30(1), pp.1–21, 1983.

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  2. Bagchi A and Mahanti A. Three Approaches to Heuristic Search in Networks, JACM 32(1), pp.1–27, 1985.

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  5. Martelli A and Montanari U. Optimising Decision Trees Through Heuristically Guided Search, Comm. ACM, Vol.12, pp.1025–1039, 1978.

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Author information

Authors and Affiliations

  1. Indian Institute of Management Calcutta, Post Box No. 16757, Alipore Post Office, 700 027, Calcutta, India

    A. Mahanti

  2. Regional Computer Centre, Jadavput University Campus, 700 032, Calcutta, India

    K. Ray

Authors
  1. A. Mahanti
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  2. K. Ray
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Editor information

S. Ramani R. Chandrasekar K. S. R. Anjaneyulu

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© 1990 Springer-Verlag Berlin Heidelberg

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Mahanti, A., Ray, K. (1990). Network search with inadmissible heuristics. In: Ramani, S., Chandrasekar, R., Anjaneyulu, K.S.R. (eds) Knowledge Based Computer Systems. KBCS 1989. Lecture Notes in Computer Science, vol 444. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0018401

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  • DOI: https://doi.org/10.1007/BFb0018401

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-52850-0

  • Online ISBN: 978-3-540-47168-4

  • eBook Packages: Springer Book Archive

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