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Combating Coevolutionary Disengagement by Reducing Parasite Virulence
2004
Evolutionary Computation
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Inspired by studies of natural host-parasite systems, we show that disengagement can be avoided by selecting for individuals that exhibit reduced levels of "virulence", rather than maximum ability to defeat ...
While standard evolutionary algorithms employ a static, absolute fitness metric, coevolutionary algorithms assess individuals by their performance relative to populations of opponents that are themselves ...
Reduced Parasite Virulence In this section we introduce a novel technique for combating disengagement, inspired by the effects of parasite virulence upon the dynamics of naturally occurring hostparasite ...
doi:10.1162/106365604773955148
pmid:15157374
fatcat:nf7i6vytxzbjlae6nznhcg3rae
Caring versus Sharing: How to Maintain Engagement and Diversity in Coevolving Populations
[chapter]
2003
Lecture Notes in Computer Science
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We demonstrate that moderating parasite virulence differs signiÞcantly from resource sharing, and that its tendency to prevent disengagement can also reduce the likelihood of coevolutionary optimisation ...
Here we explore the extent to which encouraging moderation in one coevolving population (termed parasites) can alleviate the problem of coevolutionary disengagement. ...
In this paper we present a biologically inspired method for combating coevolutionary disengagement by moderating parasite virulence. ...
doi:10.1007/978-3-540-39432-7_32
fatcat:nzwam4coa5h5nidxfj7af2zpie
Substitution of the Fittest: A Novel Approach for Mitigating Disengagement in Coevolutionary Genetic Algorithms
[article]
2021
arXiv
pre-print
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We propose substitution of the fittest (SF), a novel technique designed to counteract the problem of disengagement in two-population competitive coevolutionary genetic algorithms. ...
ACKNOWLEDGEMENTS Hugo Alcaraz-Herrera's PhD is supported by The Mexican Council of Science and Technology (Consejo Nacional de Ciencia y Tecnología -CONACyT). John Cartlidge is sponsored by Refinitiv. ...
Inspired by the behaviour of biological host-parasite systems, where the virulence of pathogens evolves over time, reduced virulence is the first domain-independent technique with tunable parameters that ...
arXiv:2108.03156v1
fatcat:s5xtnzpoynharbexcgje4fpksq
Autonomous Virulence Adaptation Improves Coevolutionary Optimization
2011
IEEE Transactions on Evolutionary Computation
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Previous work has demonstrated that setting an appropriate virulence, v, of populations accelerates coevolutionary optimization by avoiding detrimental periods of disengagement. ...
Further experiments, in more complex domains of sorting networks and maze navigation, demonstrate AVA's efficiency over reduced virulence and the layered Pareto coevolutionary archive. ...
Conclusion AVA, a novel technique designed to combat disengagement by adapting the virulence of coevolving populations during runtime, has been shown to automatically find target virulence values for the ...
doi:10.1109/tevc.2010.2073471
fatcat:2pi62jf7o5d7ba6mq3ns3bi4iq
The emergence of drug resistant HIV variants and novel anti–retroviral therapy
2013
Asian Pacific Journal of Tropical Biomedicine
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This article was supported by Tehran University of Medical Sciences (grant no. 55/10848). ...
Meanwhile, HIV also altered its infective and virulence features by means of genomic shifts and modifications. ...
Introduction In community ecology, the term "arms race" refers to coevolutionary processes observed in predatory or parasitic interactions in which the emergence of an adaptive feature in an organism results ...
doi:10.1016/s2221-1691(13)60106-9
pmid:23835806
pmcid:PMC3695575
fatcat:pfuauswhlbfjdaoj6wy7u3zbji
Abstract
2006
Journal of Ornithology = Journal fur Ornithologie
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., followed by Chugoku on 14 Sept., Kanto on 19 Sept., Tohoku on 26 Sept. and finally in Hokkaido on 10 Oct.; duration was longest in Kansai and shortest in Hokkaido. ...
, and virulence. ...
There was no evidence of brood parasitism by females. ...
doi:10.1007/s10336-006-0093-1
fatcat:4rzbnoyibrbsrmtt5xzunqfzkq
The Coming age of scarcity: preventing mass death and genocide in the twenty-first century
1998
ChoiceReviews
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This would reduce the cost of food by 70 percent, especially by cutting its transport costs. ...
Sweden enjoyed a combination of low population, untapped for est reserves, and markets for its products among the combatants. ...
doi:10.5860/choice.36-2413
fatcat:j7m2hottlzbujjignptvxtieda