Archive for ISBA

news from ISBA

Posted in Kids, pictures, Statistics, University life with tags , , , , , , , , , , on March 31, 2021 by xi'an

Some news and reminders from the latest ISBA Bulletin (which also contains an obituary of Don Fraser by Christian Genest):

  • Remember that the registration for ISBA 2021 is free till 1 May! The conference is fully online, from 28 June to 2 July
  • the Bayesian young statisticians meeting BAYSM 21 will take place online, 1-3 September
  • the useR! 2021 conference will also take place online, July 5-9
  • the MHC2021 (Mixtures, Hidden Markov models, Clustering) conference will take place physically and online at Orsay, France, 2-4 June

[o-l] ISBA 2021 [百花齊放,百家爭鳴]

Posted in pictures, Statistics, Travel, University life with tags , , , , , , , , , , , , , , on January 20, 2021 by xi'an

As usual, when looking for our ISBA World conference, ISBA [now] 2021, many alternative realities emerge, ISBA being such a popular acronym! The actual dates for the (true and only) ISBA 2021 conference are 28 June – 02 July and the location is no longer Kunming, China, since there is a pandemic going on!!! The conference is now on-line, which forces a complete rethinking of its organisation, away from a sheer replica on Zoom of the traditional conference. And with no registration fees!! I have agreed to join other ISBA members to contribute (with limited abilities) to this switch and obviously welcome comments towards it! Having greatly learned from the earlier experience with the One World Bernoulli+IMS conference last summer, thanks to the dedication and imagination of Leif Döring!, here are some line of thought:

  • Keep in mind days are 24 hours long and attention span much smaller, towards keeping the offer manageable for a fully engaged participant
  • Account and take advantage of the multiple time zones available to virtual participants to stretch the schedule to cover as many participants as possible, with a potential multiplication of (plenary) talks and posters
  • Avoid filling the on-line schedule with live talks but have them pre-registered, possibly with several levels of length and depth, including a one-slide two-minute version
  • Exploit on-line abilities to focus solely (?) on interactions, which is the main point of conferences, meaning participants joining for a thematic session over a reasonable duration to discuss talks or posters they had attended on their own before, with a catalyst leading the show with prepared questions
  • Preregister poster presentations as well, so that live poster sessions involve only questions and discussions, and group poster by theme (an attempt of mine at the earlier ISBA conferences) so that presenters and visitors can interact at the theme level rather than being stuck in an empty room with one’s poster
  • Create local mirrors when people could physically (safely!) gather to attend the conference, from watching videos and poster together to engage into a local plus virtual discussion during interaction sessions. I certainly plan to hold one such session in Paris [if there and not in Eindhoven on 28 June – 02 July]
  • Find ways to engage participants to fully commit to the conference (see above), for instance by preparing a “I am away at ISBA 2021” card one could post on whatever social or asocial networks one favours (but maybe not as one’s vacation email automated reply, unless the card is a few bytes…)

Hélène Massam (1949-2020)

Posted in Statistics with tags , , , , , , , , , , , , , , , , , , , on November 1, 2020 by xi'an

I was much saddened to hear yesterday that our friend and fellow Bayesian Hélène Massam passed away on August 22, 2020, following a cerebrovascular accident. She was professor of Statistics at York University, in Toronto, and, as her field of excellence covered [the geometry of] exponential families, Wishart distributions and graphical models, we met many times at both Bayesian and non-Bayesian conferences  (the first time may have been an IMS in Banff, years before BIRS was created). And always had enjoyable conversations on these occasions (in French since she was born in Marseille and only moved to Canada for her graduate studies in optimisation). Beyond her fundamental contributions to exponential families, especially Wishart distributions under different constraints [including the still opened 2007 Letac-Massam conjecture], and graphical models, where she produced conjugate priors for DAGs of all sorts, she served the community in many respects, including in the initial editorial board of Bayesian Analysis. I can also personally testify of her dedication as a referee as she helped with many papers along the years. She was also a wonderful person, with a great sense of humor and a love for hiking and mountains. Her demise is a true loss for the entire community and I can only wish her to keep hiking on new planes and cones in a different dimension. [Last month, Christian Genest (McGill University) and Xin Gao (York University) wrote a moving obituary including a complete biography of Hélène for the Statistical Society of Canada.]

Savage Award session today at JSM

Posted in Kids, Statistics, Travel, University life with tags , , , , , , , , , , on August 3, 2020 by xi'an

Pleased to broadcast the JSM session dedicated to the 2020 Savage Award, taking place today at 13:00 ET (17:00 GMT), with two of the Savage nominees being former OxWaSP students (and Warwick PhD students). For those who have not registered for JSM, the talks are also available on Bayeslab. (As it happens, I was also a member of the committee this year, but do not think this could be deemed a CoI!)

112 Mon, 8/3/2020, 1:00 PM – 2:50 PM Virtual
Savage Award Session — Invited Papers
International Society for Bayesian Analysis (ISBA)
Organizer(s): Maria De Iorio, University College London
Chair(s): Maria De Iorio, University College London
1:05 PM Bayesian Dynamic Modeling and Forecasting of Count Time Series
Lindsay Berry, Berry Consultants
1:30 PM Machine Learning Using Approximate Inference: Variational and Sequential Monte Carlo Methods
Christian Andersson Naesseth, Columbia University
1:55 PM Recent Advances in Bayesian Probabilistic Numerical Integration
Francois-Xavier Briol, University College London
2:20 PM Factor regression for dimensionality reduction and data integration techniques with applications to cancer data
Alejandra Avalos Pacheco, Harvard Medical School
2:45 PM Floor Discussion

ABC in Svalbard [news #1]

Posted in Mountains, pictures, Running, Statistics, Travel, University life with tags , , , , , , , , , , , , , , , , , , , , on March 23, 2020 by xi'an

We [Julien and myself] are quite pleased to announce that

  • the scientific committee for the workshop has been gathered
  • the webpage for the workshop is now on-line (with a wonderful walrus picture whose author we alas cannot identify)
  • the workshop is now endorsed by both IMS and ISBA, which will handle registration (to open soon)
  • the reservation of hotel rooms will be handled by Hurtigruten Svalbard through the above webpage (this is important as we already paid deposit for a certain number of rooms)
  • we are definitely seeking both sponsors and organisers of mirror workshops in more populated locations

As an item of trivia, let me recall that Svalbard stands for the archipelago, while Spitsbergen is the name of the main island, where Longyearbyen is located. (In Icelandic, Svalbarði means cold rim or cold coast.)