M. Oliphant, "Evolving cooperation in the non-iterated Prisoner's Dilemma: The importance of spatial organization," in R. A. Brooks and P. Maes (eds.), Artificial Life IV, MIT Press, Cambridge, pp. 349-352, 1994.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....more interesting behaviour to occur. Work by Epstein [14] into spatial zones indicate that more interesting behaviour (e.g mutual cooperation) can emerge and exist in the non iterated version of the game. Similar work on the effect of spatial organisation of strategies was undertaken by Oliphant[34] who showed, via a series of simulations, that in the absence of spatial constraints, the population quickly fell into defection. However with spatially constrained populations, it was possible to evolve and maintain cooperative behaviour. 7 Related Dilemmas and problems 7.1 Lift dilemma ....

M. Oliphant. Evolving cooperation in the non-iterated prisoner's dilemma. Artificial Life IV, 1994.

....so tend to interact with relatives, provide such a situation. However, in these same populations, there is a potential force opposing the operation of kin selection, namely competition among relatives for finite resources. Kin selection has previously been examined through computer simulation by (Oliphant 1994). Oliphant s model used genetic algorithms in a one dimensional spatial environment to model individuals playing the noniterated PD with their neighbours, and producing offspring within the same neighbourhoods. The results from the model showed that cooperation could emerge in such an environment ....

....The results from the model showed that cooperation could emerge in such an environment through kin selection. This paper presents a multi agent evolutionary model with the PD as the model of social interaction. The model allows for the evolution of cooperation through kin selection as in (Oliphant 1994) as well as through iterated interaction. A mathematical investigation of the influence of repeated interaction and kin selection in the model is presented, and conclusions are drawn on empirical results in the light of these investigations. The Model The model described in this paper was ....

Oliphant, M. 1994. Evolving Cooperation in the NonIterated Prisoner's Dilemma: The Importance of Spatial Organisation. In Proceedings of the Fourth Artificial Life Workshop, 349-352.

....it also helps to establish habitats that are composed of kin. These habitats are resistant to invasion of enemies that is, of non kin. We study the hypothesis with the Iterated Prisoner s Dilemma (IPD) game [1] At least two models of the IPD game, the tag based [6] model and the space based [5] model, use the idea of kin preference, but both interpret their experiment results in entirely different manners from each other; and neither of the papers uses the idea of kin preference in analyzing the results. We consider these two seemingly different research efforts with a common ....

....of kin preference in analyzing the results. We consider these two seemingly different research efforts with a common perspective the kinship perspective. We present a new model of cooperation in the IPD game that uses the kinship bias in a more precise way. Previous IPD research such as [6] and [5] use only one parent in producing offspring; however, in the new model, two parents are used. 1 This sexual reproduction, contrasting with the single parent methods of the earlier models, creates several complications that will be discussed later. This paper is organized as follows. Section 2 ....

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Michael Oliphant. Evolving cooperation in the noniterated prisoner's dilemma: The importance of spatial organization. In Christopher G. Langton, editor, Artificial Life IV, pages 349--352, Reading MA, 1994. AddisonWesley.

....do not extensively looked for new strategies, thus good strategies and new characteristics have perhaps been missed. ffl they study variations of the IPD, because they think the original model is too simple. Those variations offer more proximity to real life. Here are examples of such studies: [9, 6, 7, 16, 21, 23, 28, 20, 31]. ffl they seldom call into question classical results about tit for tat, which are often considered as definitive. An exception is the paper of Boyd and Loberbaum [8] showing that no pure strategy is evolutionarily stable in the IPD. To avoid confusion with works quoted in the second point, let ....

M. Oliphant. Evolving cooperation in the noniterated prisoner's dilemma. In R. A. Brooks and P. Maes, editors, Artificial Life, Proc. 4th International Workshop on the Synthesis and Simulation of Living Systems, volume 4, pages 350--352. MIT Press, 1994.

....etc. including the evolution of action coordination even in the presence of individual costs against it. It is apparent that spatial structures can provide a very strong influence on the outcome of an evolutionary process, resulting sometimes in far from intuitive characteristics (see also [5, 18]) A broad analogy can be drawn between the position of an agent in a cluster in our model, and the degree of participation in a social organization for a natural organism. For instance, animals spending more time in social activities as a consequence of their developmental stage, or their social ....

M. Oliphant. Evolving cooperation in the noniterated Prisoner's Dilemma: the importance of spatial organization. In R. Brooks and P. Maes, editors, Proceedings of Artificial Life IV. MIT Press., 1994.

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M. Oliphant, "Evolving cooperation in the non-iterated Prisoner's Dilemma: The importance of spatial organization," in R. A. Brooks and P. Maes (eds.), Artificial Life IV, MIT Press, Cambridge, pp. 349-352, 1994.

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Nature 355, 250--252. Oliphant, M. (1994). Evolving cooperation in the non-iterated prisoner's dilemma: The importance of spatial organization. In R. Brooks and P. Maes (Eds.), Proceedings of the fourth artificial life workshop, Cambridge, MA, pp.

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