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Sparse Variational Contaminated Noise Gaussian Process Regression for Forecasting Geomagnetic Perturbations
Feb. 28, 2024, 5:42 a.m. | Daniel Iong, Matthew McAnear, Yuezhou Qu, Shasha Zou, Gabor Toth Yang Chen
cs.LG updates on arXiv.org arxiv.org
Abstract: Gaussian Processes (GP) have become popular machine learning methods for kernel based learning on datasets with complicated covariance structures. In this paper, we present a novel extension to the GP framework using a contaminated normal likelihood function to better account for heteroscedastic variance and outlier noise. We propose a scalable inference algorithm based on the Sparse Variational Gaussian Process (SVGP) method for fitting sparse Gaussian process regression models with contaminated normal noise on large datasets. …
abstract arxiv become covariance cs.lg datasets extension forecasting framework function gaussian processes kernel likelihood machine machine learning noise normal novel paper popular process processes regression stat.ap stat.me type variance
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