Archive for ISBA

off to Austin!

Posted in Books, Kids, Statistics, Travel, University life, Wines with tags , , , , , , , , , on December 9, 2017 by xi'an

Today I am flying to Austin, Texas, on the occasion of the O’Bayes 2017 conference, the 12th meeting in the series. In complete objectivity (I am a member of the scientific committee!), the scientific program looks quite exciting, with new themes and new faces. (And Peter Müller concocted a special social program as well!) As indicated above [with an innovative spelling of my first name!] I will give my “traditional” tutorial on O’Bayes testing and model choice tomorrow, flying back to Paris on Wednesday (and alas missing the final talks, including Better together by Pierre!). A nice pun is that the conference centre is located on Robert De[a]dman Drive, which I hope is not premonitory of a fatal ending to my talk there..!

A of A

Posted in Books, Kids, Statistics, Travel, University life with tags , , , , , , , , , , , , , , on November 30, 2017 by xi'an

Next June, at the same time as the ISBA meeting in Edinburgh, which is slowly taking shape, there will be an Analysis of Algorithms (AofA) meeting in Uppsala (Sweden) with Luc Devroye as the plenary Flajolet Award speaker. The full name of the conference is the 29th International Conference on Probabilistic, Combinatorial and Asymptotic Methods for the Analysis of Algorithms. While it is unfortunate the two conferences take place at the same time (and not in the same location), this also provides a continuity of conferences with the following week MCqMC in Rennes and the subsequent week summer school in simulation in Warwick (with Art Owen as the LMS Lecturer).

About our summer school, I want to point out that, thanks to several sponsors, we will be able to provide a consequent number of bursaries for junior researchers. This should be an additional incentive for attendees of the previous week Young Bayesian meeting (BAYSM) to remain the extra days nearby Warwick and attend this fantastic opportunity. Other instructors are Nicolas Chopin, Mark Huber and Jeff Rosenthal!

OBayes 17 travel support

Posted in Statistics with tags , , , , , , , , , on September 1, 2017 by xi'an

The OBayes 17 conference in Austin, Texas, next December is getting nearer! This post is to advertise for the availability of a dozen travel grants for junior investigators, as detailed on the webpage of the conference. One of those grants will even become an ISBA New Researchers Travel Award for the event! This comes on top of registration and accommodation being quite reasonable, thanks to Peter Mueller’s efforts, and hence makes this conference most affordable and attractive for young researchers. Apply now!!!

O’Bayes17, next December in Austin

Posted in pictures, Statistics, Travel, University life with tags , , , , , , , , , , , on April 5, 2017 by xi'an

The next edition of the OBayes meetings is taking place this December in Austin, Texas! On the campus of the University of Texas (UT), organised by Carlos Carvalho, Peter Mueller,  James Scott, and Tom Shively. On December 10-13. Following a tradition of more than 20 years—I went to most meetings although I missed the very first conference in West Lafayette, Indiana, and only stayed 27 hours in Shanghai!, plus adopted the O’Bayes logo for the Aussois meeting, even though I meant the number of the year rather than for the edition!!—, this meeting brings together researchers interested in objective Bayes theory, methodology, and applications, and related topics, to provide opportunities for young researchers, and to establish new collaborations and partnerships. (The meeting is the biennial meeting of the Objective Bayes section of the International Society for Bayesian Analysis, of which I happen to be the current president.)

The list of speakers and discussants this year is quite impressive and far reaching, and everyone is more than welcome to present a poster at the workshop. The first (Sun)day will see a series of tutorials, given by members of the scientific committee (myself included), followed by three days of invited talks with discussions,  plus a poster session on Monday night. And possibly a desert excursion on Thursday! It should be a great meeting and I most warmly invite all ‘Og’s readers to join us in Texas!

Jubilee at the University of Calcutta

Posted in Books, pictures, Statistics, Travel, University life with tags , , , , , , , , , on January 2, 2017 by xi'an

The main reason for my trip to India was taking part in the celebrations of the 75th anniversary of the Department of Statistics at the University of Calcutta and of the 100th anniversary of the birth of P.K. Bose (whom I did not know before visiting Kolkata). The Department of Statistics was created in 1941 by Mahalanobis, the very first statistics department in Asia. (Mahalanobis was also instrumental in creating the ISI in 1932. And Sankhyā in 1933.)  Fisher visited Calcutta very often and was very supportive of Mahalanobis’ efforts: in the corridor, the above picture of Fisher is displayed, with him surrounded by faculties and graduates from the Department when he came in 1941.

Although I missed the first two days of the conference (!), I enjoyed very much the exchanges I had with graduate students there, about my talk on folded MCMC and other MCMC and Bayesian issues. (With The Bayesian Choice being an easy conversational bridge-way between us as it is their Bayesian textbook.) The setting reminded me of the ISBA conference in Varanasi four years ago, with the graduate students being strongly involved and providing heavy support in the organisation, as well as eager to discuss academic and non-academic issue. (Plus offering us one evening an amazing cultural show of songs and dances.) Continue reading

ISBA 2016 [#7]

Posted in Mountains, pictures, Running, Statistics, Travel, Wines with tags , , , , , , , , , , , , , on June 20, 2016 by xi'an

This series of posts is most probably getting by now an imposition on the ‘Og readership, which either attended ISBA 2016 and does (do?) not need my impressions or did not attend and hence does (do?) not need vague impressions about talks they (it?) did not see, but indulge me in reminiscing about this last ISBA meeting (or more reasonably ignore this post altogether). Now that I am back home (with most of my Sard wine bottles intact!, and a good array of Sard cheeses).

This meeting seems to be the largest ISBA meeting ever, with hundreds of young statisticians taking part in it (despite my early misgivings about the deterrent represented by the overall cost of attending the meeting. I presume holding the meeting in Europe made it easier and cheaper for most Europeans to attend (and hopefully the same will happen in Edinburgh in 2018!), as was the (somewhat unsuspected) wide availability of rental alternatives in the close vicinity of the conference resort. I also presume the same travel opportunities would not have been true in Banff, although local costs would have been lower. It was fantastic to see so many new researchers interested in Bayesian statistics and to meet some of them. And to have more sessions run by the j-Bayes section of ISBA (although I found it counterproductive that such sessions do not focus on a thematically coherent theme). As a result, the meeting was more intense than ever and I found it truly exhausting, despite skipping most poster sessions. Maybe also because I did not skip a single session thanks to the availability of an interesting theme for each block in the schedule. (And because I attended more [great] Sard dinners than I originally intended.) Having five sessions in parallel indeed means there is a fabulous offer of themes for every taste. It also means there are inevitably conflicts when picking one’s session.

Back to poster sessions, I feel I missed an essential part of the meeting, which made ISBA meetings so unique, but it also seems to me the organisation of those sessions should be reconsidered against the rise in attendance. (And my growing inability to stay up late!) One solution suggested by my recent AISTATS experience is to select posters towards lowering the number of posters in the four poster sessions. The success rate for the Cadiz meeting was 35%.) The obvious downsizes are the selection process (but this was done quite efficiently for AISTATS) and the potential reduction in the number of participants. A medium ground could see a smaller fraction of posters to be selected by this process (and published one way or another as in machine-learning conferences) and presented during the evening poster sessions, with other posters being given during the coffee breaks [which certainly does not help in reducing the intensity of the schedule]. Another and altogether solution is to extend the parallelism of oral sessions to poster sessions, by regrouping them into five or six themes or keywords chosen by the presenters and having those presented in different rooms to split the attendance down to human level and tolerable decibels. Nothing preventing participants to visit several rooms in a given evening. Or to keep posters for several nights in a row if the number of rooms allows.

It may also be that this edition of ISBA 2016 sees the end of the resort-style meeting in the spirit of the early Valencia meetings. Edinburgh 2018 will certainly be an open-space conference in that meals and lodgings will be “on” the participants who may choose where and how much. I have heard many times the argument that conferences held in single hotels or resorts facilitated the contacts between young and senior researchers, but I fear this is not sustainable against the growth of the audience. Holding the meeting in a reasonably close and compact location, as a University building, should allow for a sufficient degree of interaction, as was the case at ISBA 2016. (Kerrie Mengersen also suggested that a few restaurants nearby could be designated as “favourites” for participants to interact at dinner time.) Another suggestion to reinforce networking and interacting would be to hold more satellite workshops before the main conference. It seems there could be a young Bayesian workshop in England the prior week as well as a summer short course on simulation methods.

Organising meetings is getting increasingly complex and provides few rewards at the academic level, so I am grateful to the organisers of ISBA 2016 to have agreed to carry the burden this year. And to the scientific committee for setting the quality bar that high. (A special thought too for my friend Walter Racugno who had the ultimate bad luck of having an accident the very week of the meeting he had contributed to organise!)

[Even though I predict this is my last post on ISBA 2016 I would be delighted to have guest posts on others’ impressions on the meeting. Feel free to send me entries!]

O’Bayes 2017 in Austin, Texas

Posted in pictures, Statistics, Travel, University life with tags , , , , , , , on March 30, 2016 by xi'an

The next edition of the O’Bayes conference, O’Bayes 2017, will take place at the University of Texas in Austin, with the tentative dates of Dec. 10-13. Somehow making the connection with the previous O’Bayes in Valencià thanks to its Spanish history (even though, technically, Texas was French from 1684 till 1689!!!). With a local committee made of Lizhen Lin, Tom Shively, Carlos Carvalho & Peter Müller. Further details should emerge in the coming months, but keep this objective date in your calendars! (Note that NIPS 2017 will take place in Long Beach, CA, the week before.)