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1.中国科学院成都计算机应用研究所,四川成都 610299
2.西南民族大学计算机科学与工程学院,四川成都 610225
3.中国科学院大学计算机科学与技术学院,北京 101408
Received:01 September 2023,
Revised:2024-01-06,
Published:25 April 2024
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杨国松,王鹏,尹鑫钰.一种模拟绝热量子计算的适应度地形探索算法[J].电子学报,2024,52(04):1330-1336.
YANG Guo-song, WANG Peng, YIN Xin-yu.A Fitness Landscape Exploration Algorithm Simulating Adiabatic Quantum Computation[J].Acta Electronica Sinica, 2024, 52(04): 1330-1336.
杨国松,王鹏,尹鑫钰.一种模拟绝热量子计算的适应度地形探索算法[J].电子学报,2024,52(04):1330-1336. DOI:10.12263/DZXB.20230832
YANG Guo-song, WANG Peng, YIN Xin-yu.A Fitness Landscape Exploration Algorithm Simulating Adiabatic Quantum Computation[J].Acta Electronica Sinica, 2024, 52(04): 1330-1336. DOI:10.12263/DZXB.20230832
将优化问题抽象成目标函数后,目标函数和启发式优化算法的匹配程度决定了优化求解的效率.为反映目标函数的优化特征并指导优化算法及其参数的选择,本文模拟绝热量子计算中的多基态演化,提出了一种适应度地形探索算法.根据基态波函数倾向于向势能较小处收敛且收敛程度受量子效应强度影响的特性,用目标函数编码势能场后算法引入了一个量子效应递减的多基态演化过程,用其持续收敛的基态波函数簇反映目标函数的适应度地形.根据量子路径积分,算法由尺度递减的扩散蒙特卡罗(diffusion Monte Carlo,DMC)实现.实验表明算法综合直观地反映了适应度地形的众多特征,所得信息能直接指导后续优化,其计算模式和启发式优化相似,无需引入其他计算,这为适应度地形研究引入了新的视角.
After transforming an optimization problem into an objective function
the degree of matching between the objective function and the chosen heuristic optimization algorithm determines the efficiency of the following optimization. By simulating multi-ground states evolution in adiabatic quantum computation
a fitness landscape exploration algorithm is proposed to reflect the optimization characteristics of the objective function and guide the selection of optimization algorithms and their parameters. In quantum ground state evolution
the ground state wave function of a particle tends to converge towards regions with lower potential energy
and the extent of convergence is influenced by the quantum effect strength. Using these features
we encode the potential energy field by the objective function in a multi-ground states evolution with diminishing quantum effect
and consequently the fitness landscape of the objective function is reflected by the distributions of a set of converging ground state wave function in this adiabatic evolution. Based on the quantum path integral
the algorithm is implemented using a downscaling diffusion Monte Carlo (DMC). Experiments illustrated that the algorithm comprehensively and intuitively reflected numerous features of the fitness landscape
and the obtained information could directly guide optimization thereafter. Its computational mode resembles that of heuristic optimization
as it does not introduce other computations during optimization. These features introduce a novel perspective to the study of fitness landscape.
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