Sensible Priors for Sparse Bayesian Learning

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• Oliver Stegle (University of Cambridge)
• Monday 08 October 2007, 11:15-12:15
• TCM Seminar Room, Cavendish Laboratory, Department of Physics.

If you have a question about this talk, please contact Philip Sterne.

Journal Club on : “Sensible Priors for Sparse Bayesian Learning”.

Joaquin Quiñonero Candela; Edward Snelson come to present this and for discussion.

Sparse Bayesian learning suffers from impractical, overconfident predictions where the uncertainty tends to be maximal around the observations. We propose an alternative treatment that breaks the rigidity of the implied prior through decorrelation, and consequently gives reasonable and intuitive error bars. The attractive computational efficiency is retained; learning leads to sparse solutions. An interesting by-product is the ability to model non-stationarity and input-dependent noise.

——— http://research.microsoft.com/research/pubs/view.aspx?tr_id=1364

This talk is part of the Machine Learning Journal Club series.

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