Vertaile menetelmiä

	Differentiaalikehitys – globaali stokastinen optimoija	Pääkomponenttianalyysi
Tieteenala	Optimointi	Koneoppiminen
Menetelmäperhe	Process / pipeline	Machine learning
Syntyvuosi	1997	2002
Kehittäjä	Rainer Storn & Kenneth Price	Jolliffe, I.T. (textbook); Pearson & Hotelling (origins)
Tyyppi	Population-based stochastic metaheuristic	Unsupervised dimensionality reduction
Alkuperäislähde	Storn, R. & Price, K. (1997). Differential Evolution – A Simple and Efficient Heuristic for Global Optimization over Continuous Spaces. Journal of Global Optimization, 11(4), 341–359.	Jolliffe, I.T. (2002). Principal Component Analysis (2nd ed.). Springer.
Rinnakkaisnimet	DE algorithm, Diferansiyel Evrim (DE), DE optimization	Temel Bileşenler Analizi (PCA), PCA, principal components analysis, Karhunen-Loève transform
Liittyvät	5	3
Tiivistelmä	Differential Evolution (DE), introduced by Rainer Storn and Kenneth Price in 1997, is a population-based stochastic optimisation algorithm designed for continuous parameter spaces. It generates candidate solutions by combining vector differences between existing population members, making it a powerful and parameter-lean alternative to Genetic Algorithms and Particle Swarm Optimisation when the search landscape is non-convex, multimodal, or poorly suited to gradient-based methods.	Principal Component Analysis (PCA) is an unsupervised dimensionality-reduction method — given its modern textbook treatment by Ian Jolliffe (2002) — that compresses high-dimensional data into fewer dimensions while preserving the maximum possible variance. It re-expresses correlated variables as a small set of uncorrelated principal components ordered by how much of the data's variation each one captures.