Abdolreza Mohammadi, Hélène Massam, and Gérard Letac arXived last week a paper on a new approximation of the ratio of two normalising constants associated with two G-Wishart densities associated with different graphs G. The G-Wishart is the generalisation of the Wishart distribution by Alberto Roverato to the case when some entries of the matrix are […]

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## normalising constants of G-Wishart densities

June 28, 2017## estimating normalising constants [mea culpa?!]

May 28, 2014“The basic idea is to estimate the parameters by learning to discriminate between the data x and some artificially generated noise y.” In the sequel of this popular earlier post of mine on [not] estimating normalising constants, Simon Barthelmé and Nicolas Chopin pointed me to recent papers by Michael Gutmann and Aapo Hyvaärinen on this […]

## estimating constants [survey]

February 2, 2017A new survey on Bayesian inference with intractable normalising constants was posted on arXiv yesterday by Jaewoo Park and Murali Haran. A rather massive work of 58 pages, almost handy for a short course on the topic! In particular, it goes through the most common MCMC methods with a detailed description, followed by comments on […]