Fast non-elitist evolutionary algorithms with power-law ranking selection
Fast non-elitist evolutionary algorithms with power-law ranking selection
复制标题
具有幂律排序选择的快速非精英进化算法
DOI:
10.1145/3512290.3528873
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Dang D
中科院分区:
文献类型:
--
作者:
Dang D
Theoretical evidence suggests that non-elitist evolutionary algorithms (EAs) with non-linear selection mechanisms can efficiently overcome broad classes of local optima where elitist EAs fail. However, the analysis assumes a weak selective pressure and mutation rates carefully chosen close to the "error threshold", above which they cease to be efficient. On problems easier for hill-climbing, the populations may slow down these algorithms, leading to worse runtime compared with variants of the elitist (1+1) EA.Here, we show that a non-elitist EA with power-law ranking selection leads to fast runtime on easy benchmark problems, while maintaining the capability of escaping certain local optima where the elitist EAs spend exponential time in the expectation.We derive a variant of the level-based theorem which accounts for power-law distributions. For classical theoretical benchmarks, the expected runtime is stated with small leading constants. For complex, multi-modal fitness landscapes, we provide sufficient conditions for polynomial optimisation, formulated in terms of deceptive regions sparsity and fitness valleys density. We derive the error threshold and show extreme tolerance to high mutation rates. Experiments on NK-Landscape functions, generated according to the Kauffman's model, show that the algorithm outperforms the (1+1) EA and the univariate marginal distribution algorithm (UMDA).
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影响因子:
6.8
作者:
Ochoa, Gabriela
通讯作者:
Ochoa, Gabriela
DOI:
10.1145/3449639.3459312
发表时间:
2021-06
期刊:
Proceedings of the Genetic and Evolutionary Computation Conference
影响因子:
--
作者:
P. Lehre;Xiaoyu Qin
通讯作者:
P. Lehre;Xiaoyu Qin
影响因子:
1.1
作者:
D. Dang;P. Lehre
通讯作者:
P. Lehre
影响因子:
1.1
作者:
D. Dang;P. Lehre;P. Nguyen
通讯作者:
P. Nguyen
DOI:
--
发表时间:
2018
期刊:
Parallel Problem Solving from Nature
影响因子:
--
作者:
P. Lehre;P. Nguyen
通讯作者:
P. Nguyen