Local optima networks for continuous fitness landscapes
Local optima networks for continuous fitness landscapes
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连续健身景观的局部最优网络
DOI:
10.1145/3319619.3326852
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Adair J
中科院分区:
文献类型:
--
作者:
Adair J
Local Optima Networks (LONs) have been proposed as a coarsegrained model of discrete (combinatorial) fitness landscapes, where nodes are local optima and edges are search transitions based on an exploration search operator. This paper presents one of the first complex network analysis of continuous fitness landscapes. We use benchmark functions with well-known global structure, and an existing implementation of a Basin-Hopping algorithm to extract the networks. We also explore the impact of varying the Basin-Hopping perturbation step-size. Our results suggest that the landscape's connectivity pattern (global structure) strongly varies with the perturbation step-size, with extreme values of this parameter being detrimental to search and fragmenting the global structure. Our LON visualisations strikingly illustrate the landscape's global (funnel) structure, indicating that LONs serve as a tool for visualising high-dimensional functions.
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DOI:
10.1145/1389095.1389204
发表时间:
2008-07
期刊:
--
影响因子:
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通讯作者:
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DOI:
--
发表时间:
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期刊:
EvoCOP
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期刊:
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作者:
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影响因子:
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DOI:
--
发表时间:
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期刊:
Annual Conference on Genetic and Evolutionary Computation
影响因子:
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作者:
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通讯作者:
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