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ABC for COVID spread reconstruction

December 27, 2021

A recent Nature paper by Jessica Davis et al. (with an assessment by Simon Cauchemez and X from INSERM) reassessed the appearance of COVID in European and American States. Accounting for the massive under-reporting in the early days since there was no testing. The approach is based on a complex dynamic model whose parameters are […]

ABC by classification

December 21, 2021

As a(nother) coincidence, yesterday, we had a reading group discussion at Paris Dauphine a few days after Veronika Rockova presented the paper in person in Oaxaca. The idea in ABC by classification that she co-authored with Yuexi Wang and Tetsuya Kaj is to use the empirical Kullback-Leibler divergence as a substitute to the intractable likelihood […]

variational approximation to empirical likelihood ABC

October 1, 2021

Sanjay Chaudhuri and his colleagues from Singapore arXived last year a paper on a novel version of empirical likelihood ABC that I hadn’t yet found time to read. This proposal connects with our own, published with Kerrie Mengersen and Pierre Pudlo in 2013 in PNAS. It is presented as an attempt at approximating the posterior […]

One World ABC Seminar [3rd season] 

September 25, 2021

The third season of the [now monthly] One World ABC Seminar is starting! With talks by 30 September: Matias Quiroz 28 October: Michael Gutmann 25 November: Clara Grazian 27 January: Rafael Izbicki Thanks to Massimiliano Tamborino (Warwick) to running this seminar! (Register if you have not yet done so.)

Metropolis-Hastings via Classification [One World ABC seminar]

May 27, 2021

Today, Veronika Rockova is giving a webinar on her paper with Tetsuya Kaji Metropolis-Hastings via classification. at the One World ABC seminar, at 11.30am UK time. (Which was also presented at the Oxford Stats seminar last Feb.) Please register if not already a member of the 1W ABC mailing list.