Archive for Chamonix-Mont-Blanc

MCMSki IV [mistakes and regrets]

Posted in Books, Mountains, pictures, R, Statistics, Travel, University life, Wines with tags , , , , , , on January 13, 2014 by xi'an

ridge7Now that the conference and the Bayesian non-parametric satellite workshop (thanks to Judith!) are over, with (almost) everyone back home, and that the post-partum conference blues settles in (!), I can reflect on how things ran for those meetings and what I could have done to improve them… (Not yet considering to propose a second edition of MCMSki in Chamonix, obviously!)

Although this was clearly a side issue for most participants, the fact that the ski race did not take place still rattles me!  In retrospect, adding a mere 5€ amount to the registration fees for all participants would have been enough to cover the (fairly high) fares asked by the local ski school. Late planning for the ski race led to overlook this basic fact…

Since MCMSki is now the official conference of the BayesComp section of ISBA, I should have planned well in advance a section meeting within the program, if only to discuss the structure of the next meeting and how to keep the section alive. Waiting till the end of the last section of the final day was not the best idea!

Another thing I postponed for too long was seeking some sponsors: fortunately, the O’Bayes meeting in Duke woke me up to the potential of a poster prize and re-fortunately Academic Press, CRC Press, and Springer-Verlag reacted quickly enough to have plenty of books to hand to the winners. If we could have had another group of sponsors financing a beanie or something similar, it would have been an additional perk… Even though I gathered enough support from participants about the minimalist conference “package” made of a single A4 sheet.

Last, I did not advertise properly on the webpage and at all during the meeting for the special issue of Statistics and Computing open to all presenters at MCMSki IV! We now need to send a reminder to them…

moonrise over Chamonix

Posted in Mountains, pictures, Travel with tags , , , , , on January 12, 2014 by xi'an

moonrise

tramway du Mont-Blanc

Posted in Mountains, pictures, Travel with tags , , , , , , on January 10, 2014 by xi'an

IMG_2268

MCMSki IV [prizes]

Posted in Books, Mountains, pictures, Statistics, University life with tags , , , , , on January 10, 2014 by xi'an

ridge6Congratulations to the MCMSki IV poster prize winners:

who each received two books from those kindly sent by Academic Press, CRC Press, and Springer-Verlag. (Except one of the above who should contact me for delivering her/him the dedicated books!) And to the honourable mention winners:

And to the members of the jury who worked hard both evening to produce this set of winners… Congrats too to Mina Vekhala from Helsinki who left the banquet with a pair of Blossom skis, thanks to a random draw from U({1,…,188}) of a dinner participant. She was 154th on the list and this number came out first. (Renewed thanks to Blossom skis for their generosity!)

MCMSki IV [day 3]

Posted in Mountains, pictures, R, Statistics, Travel, University life with tags , , , , , , , , , , , , , , on January 9, 2014 by xi'an

ridge5Already on the final day..! And still this frustration in being unable to attend three sessions at once… Andrew Gelman started the day with a non-computational talk that broached on themes that are familiar to readers of his blog, on the misuse of significance tests and on recommendations for better practice. I then picked the Scaling and optimisation of MCMC algorithms session organised by Gareth Roberts, with optimal scaling talks by Tony Lelièvre, Alex Théry and Chris Sherlock, while Jochen Voss spoke about the convergence rate of ABC, a paper I already discussed on the blog. A fairly exciting session showing that MCMC’ory (name of a workshop I ran in Paris in the late 90’s!) is still well and alive!

After the break (sadly without the ski race!), the software round-table session was something I was looking for. The four softwares covered by this round-table were BUGS, JAGS, STAN, and BiiPS, each presented according to the same pattern. I would have like to see a “battle of the bands”, illustrating pros & cons for each language on a couple of models & datasets. STAN got the officious prize for cool tee-shirts (we should have asked the STAN team for poster prize tee-shirts). And I had to skip the final session for a flu-related doctor appointment…

I called for a BayesComp meeting at 7:30, hoping for current and future members to show up and discuss the format of the future MCMski meetings, maybe even proposing new locations on other “sides of the Italian Alps”! But (workshop fatigue syndrome?!), no-one showed up. So anyone interested in discussing this issue is welcome to contact me or David van Dyk, the new BayesComp program chair.