手法を比較

	Evolutionary Strategy (CMA-ES)	遺伝的アルゴリズム	ニューラルアーキテクチャ探索
分野	最適化	最適化	深層学習
系統	Process / pipeline	Process / pipeline	Machine learning
提唱年	2001	1975	2017
提唱者	Nikolaus Hansen & Andreas Ostermeier	John Henry Holland	Zoph, B. & Le, Q.V.
種類	Derivative-free continuous black-box optimizer	Population-based metaheuristic	Automated architecture optimization (deep learning)
原典	Hansen, N. & Ostermeier, A. (2001). Completely Derandomized Self-Adaptation in Evolutionary Strategies. Evolutionary Computation, 9(2), 159-195.	Holland, J.H. (1975). Adaptation in Natural and Artificial Systems. University of Michigan Press.	Zoph, B. & Le, Q.V. (2017). Neural Architecture Search with Reinforcement Learning. ICLR.
別名	CMA-ES, Evolution Strategy, Evrimsel Strateji (CMA-ES), self-adapting evolution strategy	GA, evolutionary algorithm, Genetik Algoritma — Evrimsel Optimizasyon	Nöral Mimari Arama (NAS), NAS, automated architecture design, differentiable architecture search
関連	5	5	5
概要	CMA-ES, short for Covariance Matrix Adaptation Evolution Strategy, is a modern derivative-free optimizer for continuous black-box functions introduced by Hansen and Ostermeier in 2001. It maintains a population of candidate solutions drawn from a multivariate normal distribution and iteratively updates the distribution's mean, step size, and full covariance matrix to steer the search toward better regions of the parameter space. It has become the de-facto standard for continuous black-box optimization and is widely used in neural architecture search and reinforcement-learning policy optimization.	A genetic algorithm (GA) is a population-based metaheuristic optimization method introduced by John Henry Holland (1975) that mimics the principles of natural selection. It maintains a population of candidate solutions and iteratively improves them through selection, crossover, and mutation operators, making it especially powerful on discontinuous, non-convex, and multi-modal search spaces where classical gradient-based methods fail.	Neural Architecture Search (NAS), introduced by Zoph and Le in 2017, automatically optimizes architectural decisions such as a network's depth, width, and connection structure instead of hand-designing them. Leading methods in the field include DARTS, ENAS, and Once-for-All.