Distributed robust Gaussian Process regression
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Authors
We study distributed and robust Gaussian Processes where robustness is introduced by a Gaussian Process prior on the function values combined with a Student-t likelihood. The posterior distribution is approximated by a Laplace Approximation, and together with concepts from Bayesian Committee Machines, we efficiently distribute the computations and render robust GPs on huge data sets feasible. We provide a detailed derivation and report on empirical results. Our findings on real and artificial data show that our approach outperforms existing baselines in the presence of outliers by using all available data.
Original language | English |
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Journal | Knowledge and Information Systems |
Volume | 55 |
Issue number | 2 |
Pages (from-to) | 415-435 |
Number of pages | 21 |
ISSN | 0219-1377 |
DOIs | |
Publication status | Published - 01.05.2018 |
- Business informatics - Distributed computation, Gaussian process regression, Laplace Approximation, Robust regression, Student-t likelihood