Author Archives: drewancameron

A Bayesian indirect inference for the binary fraction in Leo II …

A recent arXival by Spencer et al. presents a Bayesian analysis of radial velocity data for the binary fraction in (the ultra faint dwarf galaxy) Leo II in which the inference proceeds by comparison of mock datasets against the observed … Continue reading

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Modelling cluster profiles …

I spent last week in Paris visiting the Institut Pasteur for a Gates Foundation workshop organised to focus thinking around the problem of designing a Target Product Profile for a ‘commercial’ malaria serology test.  On my journey back I read … Continue reading

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Emulators and process convolutions …

I read two interesting papers recently: the first from astro ph was by Kern et al., entitled “Emulating Simulations of Cosmic Dawn for 21cm Power Spectrum Constraints on Cosmology, Reionization, and X-Ray Heating“.  The type of emulator approach described in … Continue reading

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Daleks vs MultiNest …

A recent paper on the arXiv that caught my attention was this one by entitled Accelerated Parameter Estimation with DALE by Daniel & Linder (2017), in which the authors present a code for determining confidence contours on model parameters for which … Continue reading

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Podcast …

I recently gave in to the conceit of trying to record a podcast; you can see/hear the results here as the first instalment of the Malaria Atlas Project podcast series. Otherwise I’ve been travelling a lot these past three weeks: … Continue reading

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A convexified mixture model …

Just a brief note to point out this recent arXival by Leistedt & Hogg in which the color-magnitude diagram is used to help refine (parallax) distance estimates from Gaia via a Bayesian hierarchical model.  The idea is that although a star’s … Continue reading

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ABC for Lyman forest studies …

I enjoyed reading this recent arXival by Davies et al. in which the authors present an ABC  (approximate Bayesian computation) analysis of the cosmological reionization history.  In particular, the idea is to use ABC to overcome intractability of the joint likelihood … Continue reading

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