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Hannes Nickisch

5 accepted papers

2017

Scalable Log Determinants for Gaussian Process Kernel Learning

NeurIPS 2017poster

For applications as varied as Bayesian neural networks, determinantal point processes, elliptical graphical models, and kernel learning for Gaussian processes (GPs), one must compute a log determinant of an n by n positive definite matrix, and its derivatives---leading to prohibitive O(n^3) computat…

2016

Scalable Gaussian Processes for Characterizing Multidimensional Change Surfaces

AISTATS 2016poster

We present a scalable Gaussian process model for identifying and characterizing smooth multidimensional changepoints, and automatically learning changes in expressive covariance structure. We use Random Kitchen Sink features to flexibly define a change surface in combination with expressive spectral…

Cited by 39SourcePDFScholar
2015

Fast Kronecker Inference in Gaussian Processes with non-Gaussian Likelihoods

ICML 2015poster

Gaussian processes (GPs) are a flexible class of methods with state of the art performance on spatial statistics applications. However, GPs require O(n^3) computations and O(n^2) storage, and popular GP kernels are typically limited to smoothing and interpolation. To address these difficulties, Kron…

Cited by 123SourcePDFScholar