Archive for Bayesian conference

ISBA 2018 provisional program is now on!

Posted in Mountains, pictures, Statistics, Travel, University life with tags , , , , , , on April 26, 2018 by xi'an

The program of the incoming 2018 ISBA World Meeting in Edinburgh, Scotland, is now on line. Predicting a fairly intense week, from 9am till 7pm, with five parallel sessions at time, and a fairly dense poster session list from 20:30 till 23:00. (The Objective Bayes session I helped organise will take place on the Wednesday morn.)

another instance of a summer of Bayesian conferences

Posted in pictures, Statistics, Travel, University life with tags , , , , , , , , , on March 15, 2018 by xi'an

As it happens, the next MaxEnt conference will happens in London, on 2-6 July, at the Alan Turing Institute, which makes it another perfect continuation of the ISBA meeting in Edinburgh, or of the Computational Statistics summer school in Warwick the week after. But in competition with BAYsm in Warwick and MCqMC in Rennes. I once attended a MaxEnt meeting in Oxford. (Oxford, Mississippi!) Which was quite interesting in the audience it attracted and the focus of the discussions, some of which were exhilaratingly philosophical!

StanCon in Helsinki [29-31 Aug 2018]

Posted in Books, pictures, R, Statistics, Travel, University life with tags , , , , , , , , on March 7, 2018 by xi'an

As emailed to me by Aki Vehtari, the next StanCon will take place this summer in the wonderful city of Helsinki, at the end of August. On Aalto University Töölö Campus precisely. The list of speakers and tutorial teachers is available on the webpage. (The only “negative point” is that the conference does not include a Tuesday, the night of the transcendence 2 miles race!) Somewhat concluding this never-ending summer of Bayesian conferences!

ISBA 2016

Posted in Kids, Statistics, Travel, University life, Wines with tags , , , , , , , , , , on June 14, 2016 by xi'an

non-tibetan flags in Pula, Sardinia, June 12, 2016I remember fondly the early Valencia meetings where we did not have to pick between sessions. Then one year there were two sessions and soon more. And we now have to pick among equally tantalising sessions. [Complaint of the super wealthy, I do realise.] After a morning trip to San’Antioco and the southern coast of Sardinia, I started my ISBA 2016 with an not [that Bayesian] high dimension session with Michael Jordan (who gave a talk related to his MCMski lecture), Isa Verdinelli and Larry Wasserman.

Larry gave a [non-Bayesian, what else?!] talk on the problem of data splitting versus double use of the same data. Or rather using a model index estimated from a given dataset to estimate the properties of the mean of the same data. As in model selection. While splitting the data avoids all sorts of problem, not splitting the data but using a different loss function could avoid the issue. (And the infinite regress that if we keep conducting inference, we may have to split further and further the data.) Namely, if we were looking only at quantities that do not vary across models. So it is surprising that prediction get affected by this.

In a second session around Bayesian tests and model choice, Sarah Filippi presented the Bayesian non-parametric test she devised with Chris Holmes, using Polya trees. And mentioned our testing-by-mixture approach as a valuable alternative! Veronika Rockova talked about her new approach to efficient variable selection by spike-and-slab priors, through a mix of particle MCMC and EM, plus some variational Bayes motivations. (She also mentioned extensions by repulsive sampling through the pinball sampler, of which her recent AISTATS paper reminded me.)

Later in the evening, I figured out that the poster sessions that make the ISBA/Valencia meetings so unique are alas out of reach for me as the level of noise and my reduced hearing capacities (!) make impossible any prolonged discussion on any serious notion. No poster session for ‘Og’s men!, then, even though I can hang out at the fringe and chat with friends!

next BayesComp conference planned for Jan 2018, any volunteer?

Posted in Kids, Mountains, Statistics, Travel, University life with tags , , , , , , , , , , , , , , , , , on February 25, 2016 by xi'an

MCMSki III poster, 2010 (C.) IMS[A call from the BayesComp section of ISBA for the next Bayesian computation meeting! As suggested in an earlier post, the label MCMski is discontinued to allow for any location amenable to organise a 200 plus meeting in good and hopefully reasonably priced conditions.]

The Bayesian Computation Section of ISBA is soliciting proposals to host its flagship meeting: BayesComp 2018

The expectation is that the meeting will be held in January 2018, but the committee will consider proposals for other times through January 2019. This meeting is a continuation of the popular MCMSki on recent advances in the theory and application of Bayesian computational methods such as MCMC. The tradition was to hold MCMski meetings in ski resorts, but, as the name change suggests, we encourage applications from any venue that could support BC2018.

A three-day meeting is planned, perhaps with an additional day or two of satellite meetings and/or short courses. One page proposals should address feasibility of hosting the meeting including

1. Proposed dates.
2. Transportation for international participants (both the proximity of international airports and transportation to/from the venue).
3. The conference facilities.
4. The availability and cost of hotels, including low cost options.
5. The proposed local organizing committee and their collective experience organizing international meetings.
6. Expected or promised contributions from the host organization, host country, or industrial partners towards the cost of running the meetings.

Proposals should be submitted to Nicolas Chopin (Program Chair) no later than May 31, 2016. The Board of Bayesian Computing Section will evaluate the proposals, choose a venue, and appoint the Program Committee for BayesComp 2018.