قارن الطرق

	الانحدار المحلي LOESS / LOWESS	نموذج الجمع المعمم (GAM)
المجال	تعلم الآلة	تعلم الآلة
العائلة	Machine learning	Machine learning
سنة النشأة	1979	1986
صاحب الطريقة	William S. Cleveland	Trevor Hastie & Robert Tibshirani
النوع	Local nonparametric regression smoother	Semi-parametric additive regression model
المصدر التأسيسي	Cleveland, W. S. (1979). Robust locally weighted regression and smoothing scatterplots. Journal of the American Statistical Association, 74(368), 829–836.	Hastie, T., & Tibshirani, R. (1986). Generalized additive models. Statistical Science, 1(3), 297–310.
الأسماء البديلة	LOWESS, local regression, locally weighted scatterplot smoothing, yerel regresyon	GAM, additive model, spline-based additive regression, Genelleştirilmiş toplamsal model
ذات صلة	3	4
الملخص	LOESS (locally estimated scatterplot smoothing), introduced by William Cleveland in 1979 and extended with Susan Devlin in 1988, fits a smooth curve through data by performing a separate weighted polynomial regression in the neighbourhood of each point. Nearby observations count more than distant ones, so the method follows local structure without assuming any global functional form, making it a popular exploratory smoother for scatterplots.	A generalized additive model, introduced by Trevor Hastie and Robert Tibshirani in 1986, extends the generalized linear model by replacing each linear term with a smooth, data-driven function of the predictor. This lets the model capture nonlinear relationships while preserving the additive, term-by-term interpretability of regression: each predictor contributes its own estimated curve, and the curves simply add up (on a link scale) to predict the response.