Monthly Archives: January 2015

On RJMCMC and Adaptive PT …

I enjoyed reading two recent papers (one recently revised, the other new) from the Brummy astronomy group: one presenting an adaptive subdivision of the posterior to facilitate efficient moves in RJMCMC (Reversible Jump MCMC) and the other presenting an adaptive … Continue reading

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Mixture models for magnetars …

A Bayesian-heavy dump on astro ph today but I did manage to squeeze in a read of one paper over lunch while simultaneously supervising various scripts running to generate our groups’ latest malaria incidence maps.  That paper was Daniela Huppenkothen’s “Dissecting magnetar variability … Continue reading

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In press (chlamydia & ISBA Bulletin) …

For those readers not already subject to my self-publicity through Facebook here’s a quick dose! First of all I was happy to finally see in print my collaboration with Dr Hammad Ali & Prof David Wilson from the Kirby Institute … Continue reading

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Some unwitting pdBIL-MCMC …

What is pdBIL-MCMC, you ask? From Drovandi et al. (2014) it’s ‘parametric data Bayesian indirect likelihood Markov Chain Monte Carlo’; and the unwitting use of it was in a paper on the Milky Way’s Initial Mass Function (IMF) appearing in … Continue reading

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Using a sledgehammer to squash a grape …

I enjoyed a quirk in this paper by Ngo et al. (2015) on today’s astro ph: the authors use an affine invariant MCMC sampler to estimate a single parameter (the companion fraction) from a single parameter model for which (see … Continue reading

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