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Integrated Variational Fourier Features for Fast Spatial Modelling with Gaussian Processes
April 15, 2024, 4:43 a.m. | Talay M Cheema, Carl Edward Rasmussen
cs.LG updates on arXiv.org arxiv.org
Abstract: Sparse variational approximations are popular methods for scaling up inference and learning in Gaussian processes to larger datasets. For $N$ training points, exact inference has $O(N^3)$ cost; with $M \ll N$ features, state of the art sparse variational methods have $O(NM^2)$ cost. Recently, methods have been proposed using more sophisticated features; these promise $O(M^3)$ cost, with good performance in low dimensional tasks such as spatial modelling, but they only work with a very limited class …
abstract art arxiv cost cs.lg datasets features fourier gaussian processes inference modelling popular processes scaling scaling up spatial state state of the art stat.ml training type
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