Võrdle meetodeid

	Keskmine absoluutviga (MAE)	Ruutkeskmine viga (MSE)
Valdkond	Mudelite hindamine	Mudelite hindamine
Perekond	MCDM	MCDM
Tekkeaasta	1799	1809
Looja	Pierre-Simon Laplace	Carl Friedrich Gauss
Tüüp	Robust distance-based metric	Squared-error loss function
Algallikas	Laplace, P. S. (1799). Traité de Mécanique Céleste. Paris: J.B.M. Duprat.	Gauss, C. F. (1809). Theoria Motus Corporum Coelestium in Sectionibus Conicis Solem Ambientium. Hamburg: Perthes and Besser.
Rööpnimetused	MAE, L1 error, mean absolute deviation	MSE, L2 error, quadratic error
Seotud	3	4
Kokkuvõte	Mean Absolute Error is a robust metric that measures the average absolute magnitude of prediction errors in regression models. Dating back to Pierre-Simon Laplace's work on observational errors (1799), MAE quantifies typical prediction deviation by averaging the absolute differences between observed and predicted values.	Mean Squared Error is the foundational loss function for regression models, measuring the average squared deviation between predictions and observations. Originating from Gauss and Legendre's method of least squares (1805-1809), MSE is the basis for ordinary least squares regression and remains central to modern machine learning optimization.