Abstract
In recent work we have developed a novel variational inference method for partially observed systems governed by stochastic differential equations. In this paper we provide a comparison of the Variational Gaussian Process Smoother with an exact solution computed using a Hybrid Monte Carlo approach to path sampling, applied to a stochastic double well potential model. It is demonstrated that the variational smoother provides us a very accurate estimate of mean path while conditional variance is slightly underestimated. We conclude with some remarks as to the advantages and disadvantages of the variational smoother. © 2008 Springer Science + Business Media LLC.
Original language | English |
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Pages (from-to) | 51-59 |
Number of pages | 9 |
Journal | Journal of Signal Processing Systems |
Volume | 61 |
Issue number | 1 |
Early online date | 11 Nov 2008 |
DOIs | |
Publication status | Published - Oct 2010 |
Event | IEEE International Workshop on Machine Learning for Signal Processing - Thessaloniki, Greece Duration: 27 Aug 2007 → 29 Aug 2007 |
Bibliographical note
The original publication is available at www.springerlink.comKeywords
- Bayesian computation
- data assimilation
- nonlinear smoothing
- signal processing
- variational approximation