Vertaile menetelmiä

	Regularized k-Nearest Neighbors	Regularisoitu Gaussinen prosessi
Tieteenala	Koneoppiminen	Koneoppiminen
Menetelmäperhe	Machine learning	Machine learning
Syntyvuosi	1967–2000s	2006 (canonical formulation); kernel regularization roots 1990s
Kehittäjä	Extends Cover & Hart (1967); regularization formulations developed through kernel smoothing literature	Rasmussen, C. E. & Williams, C. K. I.
Tyyppi	Instance-based / lazy learner with regularization	Probabilistic kernel model with regularization
Alkuperäislähde	Cover, T. & Hart, P. (1967). Nearest neighbor pattern classification. IEEE Transactions on Information Theory, 13(1), 21–27.	Rasmussen, C. E., & Williams, C. K. I. (2006). Gaussian Processes for Machine Learning. MIT Press. ISBN: 978-0-262-18253-9
Rinnakkaisnimet	regularized kNN, kernel-weighted kNN, distance-regularized nearest neighbors, kNN with regularization	Regularized GP, GP with noise regularization, sparse regularized Gaussian process, regularized Gaussian process regression
Liittyvät	4	4
Tiivistelmä	Regularized k-Nearest Neighbors (kNN) extends the classical nearest-neighbor algorithm by incorporating regularization mechanisms — most commonly kernel-based distance weighting or bandwidth control — that smooth predictions, reduce sensitivity to the choice of k, and lower variance. The result is a more stable and better-calibrated instance-based learner for classification and regression tasks on tabular data.	A Regularized Gaussian Process (GP) is a probabilistic kernel-based model that places a prior over functions and explicitly controls overfitting through a noise regularization parameter — the observation noise variance — that prevents the model from memorizing training labels. It produces calibrated uncertainty estimates alongside predictions, making it uniquely suited to small or expensive datasets where knowing how confident the model is matters as much as the prediction itself.