Jämför metoder

	Maximum Likelihood Estimation	EM-algoritmen
Ämnesområde	Statistik	Statistik
Familj	Regression model	Machine learning
Ursprungsår	1922	1977
Upphovsperson	R. A. Fisher	Dempster, Laird & Rubin
Typ	Parametric point estimator	Iterative optimization algorithm
Ursprungskälla	Fisher, R. A. (1922). On the mathematical foundations of theoretical statistics. Philosophical Transactions of the Royal Society of London, Series A, 222, 309–368.	Dempster, A. P., Laird, N. M., & Rubin, D. B. (1977). Maximum likelihood from incomplete data via the EM algorithm. Journal of the Royal Statistical Society: Series B, 39(1), 1–38.
Alias	MLE, maximum-likelihood estimator, ML estimation, Fisher's method of maximum likelihood	EM, Expectation-Maximization, Maximum Likelihood via Incomplete Data, BM Algoritması
Närliggande	4	2
Sammanfattning	Maximum Likelihood Estimation (MLE) is a general-purpose parametric method for estimating the unknown parameters of a statistical model by finding the parameter values that make the observed data most probable. Formalized by R. A. Fisher in his landmark 1922 paper in the Philosophical Transactions of the Royal Society, MLE has become the dominant parameter-estimation paradigm in modern statistics and is the foundational engine behind logistic regression, generalized linear models, structural equation modeling, and virtually all parametric inference procedures.	The Expectation-Maximization (EM) algorithm is an iterative optimization procedure for finding maximum likelihood or maximum a posteriori estimates of parameters in statistical models with latent variables or missing data. Introduced by Dempster, Laird, and Rubin in their landmark 1977 paper, EM alternates between computing the expected complete-data log-likelihood (E-step) and maximizing it with respect to the parameters (M-step), guaranteeing monotone non-decreasing likelihood at each iteration.