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A search game with one object and two searchers

Published online by Cambridge University Press:  14 July 2016

Teruhisa Nakai*
Affiliation:
Osaka University
*
Postal address: Department of Applied Mathematics, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka 560, Japan.

Abstract

We consider a non-zero-sum game in which two searchers (player I and II) compete with each other for quicker detection of an object hidden in one of n boxes. Let p (q) be the prior location distribution of the object for player I (II). Exponential detection functions are assumed for both players. Each player wishes to maximize the probability that he detects the object before the opponent detects it. In the general case, a Nash equilibrium point is obtained in the form of a solution of simultaneous differential equations. In the case of p = q, we obtain an explicit solution showing the surprising result that both players have the same equilibrium strategy even though the detection rates are different.

Type
Research Paper
Copyright
Copyright © Applied Probability Trust 1986 

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References

[1] Corwin, T. L. (1981) Search for a moving target under minimax estimation. J. Appl. Prob. 18, 167180.Google Scholar
[2] Croucher, J. S. (1975) Application of the fundamental theorem of games to an example concerning antiballistic missile defense. Naval Res. Logist. Quart. 22, 197203.CrossRefGoogle Scholar
[3] Gal, S. (1978) A stochastic search game. SIAM J. Appl. Math. 34, 205210.Google Scholar
[4] Gittins, J. C. and Roberts, D. M. (1979) The search for an intelligent evader concealed in one of an arbitrary number of regions. Naval Res. Logist. Quart. 26, 651666.Google Scholar
[5] Lee, K. T. (1983) A firing game with time lag. J. Optim. Theory Appl. 41, 547558.Google Scholar
[6] Nakai, T. (1983) A sequential evasion-search game. Math. Japonica 28, 315326.Google Scholar
[7] Nakai, T. (1984) A sequential evasion-search game with a goal. Unpublished.Google Scholar
[8] Nash, J. F. (1951) Non-cooperative games. Ann. Math. 54, 286295.Google Scholar
[9] Neuts, M. F. (1963) A multistage search game. J. SIAM 11, 502507.Google Scholar
[10] Norris, R. C. (1962) Studies in search for a conscious evader. MIT Lincoln Lab. Tech. Rpt. No. 279.Google Scholar
[11] Roberts, D. M. and Gittins, J. C. (1978) The search for an intelligent evader: strategies for searcher and evader in the two-region problem. Naval Res. Logist. Quart. 25, 95106.Google Scholar
[12] Ruckle, W. H. (1979) On the constructability of solution to a pair of two person search games. Int. J. Game Theory 8, 235240.Google Scholar
[13] Ruckle, W. H. (1981) Pursuit on a cyclic graph — the symmetric stochastic case. Int. J. Game Theory 10, 9199.CrossRefGoogle Scholar
[14] Sakaguchi, M. (1973) Two-sided search games. J. Operat. Res. Soc. Japan 16, 207225.Google Scholar
[15] Stewart, T. J. (1981) A two-cell model of search for an evading target. European J. Operat. Res. 8, 369378.Google Scholar
[16] Suberman, E. J. (1981) A hide-search game. J. Appl. Prob. 18, 628640.Google Scholar
[17] Washburn, A. R. (1980) Search-evasion game in a fixed region. Operat. Res. 28, 12901298.CrossRefGoogle Scholar