ABC in Roma (#2)

Just a few more words written on my return home from Roma (on an uneventful and sunny trip). On a personal side (that readers can skip!), it was a pleasure as always to be two days in Roma, from running in the early morning, beating the rain and the traffic (and with no map nor […]

accurate ABC: comments by Oliver Ratman [guest post]

Here are comments by Olli following my post: I think we found a general means to obtain accurate ABC in the sense of matching the posterior mean or MAP exactly, and then minimising the KL distance between the true posterior and its ABC approximation subject to this condition. The construction works on an auxiliary probability […]

ABC in Roma

Back in Roma after my ABC week last year, for the ABC in Rome workshop! The attendance is quite in par with the sizes of the previous audiences and the program is close to my own interests—unsurprisingly since I took part to the scientific committee! Hence talks on papers that have already been discussed on […]

accurate ABC?

As posted in the previous entry, Olli Ratman, Anton Camacho, Adam Meijer, and Gé Donker arXived their paper on accurate ABC. A paper which [not whose!] avatars I was privy to in the past six months! While I acknowledge the cleverness of the reformulation of the core ABC accept/reject step as a statistical test, and […]

re-re-relevant statistics for ABC model choice

After a very, very long delay, we eventually re-revised our paper about necessary and sufficient conditions on summary statistics to be relevant for model choice (i.e. to lead to consistent tests). Reasons, both good and bad, abound for this delay! Some (rather bad) were driven by the completion of a certain new edition… Some (fairly […]