Monthly Archives: November 2016

More hyper parameters for softening likelihoods in cosmological inference …

I noticed this paper, “Determining with Bayesian hyper-parameters”, on astro ph today by Cardona et al. The problem is one that arises often in astronomy whereby the observed data are assumed to have a Normal likelihood function in which the … Continue reading

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Xtreme deconvolution …

A sociological observation segueing into a note on Drton & Plummer. I noticed on today’s astro ph a paper on ‘extreme deconvolution’, which is an astro-statistics term for fitting a Normal mixture model to noisy data; I’m not sure if the … Continue reading

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Sparsity round two …

I noticed on astro ph last week a new paper promoting a method of “Sparse Bayesian Inference” for probing the temperature structure of the solar corona by Warren et al.  In this case (as in many Bayesian problems) the model-prior-likelihood triple … Continue reading

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