Category Archives: Computing

Retiring this blog

The other day I bought a domain name for my website, which was fun, and has motivated me to continue simplifying my internet life in a few ways. Over the last year or so I’ve successfully reduced my social media … Continue reading

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More efficient than Nested Sampling!

This paper nicely illustrates a genre I’ve seen a few times before. Pick a problem where there’s some symmetry or feature you can exploit to speed up the calculation, do so, and then compare it to Nested Sampling which doesn’t assume … Continue reading

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LBRY whitepaper released

https://lbry.io/news/lbrytech  

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New favourite software

I’ve been into “alternative” computer software since I started using Linux as my main operating system in about 2005. The main reason has been convenience, as I got in the habit of developing on Linux and it would be hard … Continue reading

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R-based model specification for DNest4

Last night, I decided to bite the bullet and add yet another method to implement models in DNest4, this time using R. Statisticians know R, so it’s probably a good idea to support their language in some form. This brings … Continue reading

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Types and Jaynes’s ‘Mind Projection Fallacy’

Ed Jaynes frequently criticised what he called the mind projection fallacy. This is the implicit assumption that our concepts of, say, gaussianity, randomness, and so on, reflect properties of to be found “out there in nature”, whereas they often reside … Continue reading

Posted in Computing, Inference, Mathematics | 1 Comment

Some software I’ve been working on

Hi everyone. I’ve recently been expanding my computational horizons and it has helped me to put some of my trans-dimensional Bayesian inference codes for astronomy into a more usable state for others, with configuration files in YAML, nonzero documentation (though … Continue reading

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DNest4 version 0.2.0

G’day everyone. This post is to update you on some work I’ve been doing (along with some collaborators, notably João Faria) on DNest4. So, you’ll likely only care if you’re a user of that package. There have been enough additions … Continue reading

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News and updates

Just a quick post to let you all know about some recent goings-on in my research over the last couple of months. Former MSc student and current PhD student Oliver (Ollie) Stevenson was profiled on our department’s homepage. Ollie is … Continue reading

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A Rosenbrock challenge for MCMC folks…

Note: After I posted this the first time, I started to distrust my own results. I am confident the properties of the problem are probably something like what my figures show, but perhaps different in a couple of details. I … Continue reading

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