Archive for discussions

workshop a Padua

Posted in pictures, Running, Statistics, Travel, University life with tags , , , , , , , , on October 5, 2012 by xi'an

I am invited to a (closed) workshop in Padua/Padova next March, “Recent advances in statistical inference: theory and case studies”, which is an exciting opportunity to discuss about recent advances in Bayesian methodology and likelihood inference, to meet with friends and to be back in this beautiful city where I met George Casella for the last time. (Keeping this vivid image of watching George running around the Prato della Valle as my bus was leaving the city towards Venezia airport.)

The workshop is organised in my favourite way, which is “to have a moderate number of invited talks at the workshop, to allow good time for presentation and discussion”. With discussants, which seems a vanishing structure in conferences where the length of the talks is getting shorter and shorter. When in Bristol last week, I realised how much I gained from a slower conference pace with fewer and longer talks, more time for discussion in between, and a well-scheduled poster session. Maybe old age speaking! Furthermore, part of the workshop takes place in the fabulous Caffè Pedrocchi, where we had dinner two years ago… Terrific (and exclusive, as the workshop is by invitation only!)

Particle learning [rejoinder]

Posted in R, Statistics, University life with tags , , , , , , , , , , on November 10, 2010 by xi'an

Following the posting on arXiv of the Statistical Science paper of Carvalho et al., and the publication by the same authors in Bayesian Analysis of Particle Learning for general mixtures I noticed on Hedibert Lopes’ website his rejoinder to the discussion of his Valencia 9 paper has been posted. Since the discussion involved several points made by members of the CREST statistics lab (and covered the mixture paper as much as the Valencia 9 paper), I was quite eager to read Hedie’s reply. Unsurprisingly, this rejoinder is however unlikely to modify my reservations about particle learning. The following is a detailed examination of the arguments found in the rejoinder but requires a preliminary reading of the above papers as well as our discussion.. Continue reading

Comments for València 9

Posted in Statistics, University life with tags , , , , on June 23, 2010 by xi'an

Following discussions at CREST, we have contributed comments on the following papers

Bernardo, José M. (Universitat de València, Spain)
Integrated objective Bayesian estimation and hypothesis testing. [discussion]

Consonni, Guido (Università di Pavia, Italy)
On moment priors for Bayesian model choice with applications to directed acyclic graphs. [discussion]

Frühwirth-Schnatter, Sylvia (Johannes Kepler Universität Linz, Austria)
Bayesian variable selection for random intercept modeling of Gaussian and non-Gaussian data. [discussion]

Huber, Mark (Claremont McKenna College, USA)
Using TPA for Bayesian inference. [discussion]

Lopes, Hedibert (University of Chicago, USA)
Particle learning for sequential Bayesian computation. [discussion]

Polson, Nicholas (University of Chicago, USA)
Shrink globally, act locally: Sparse Bayesian regularization and prediction. [discussion]

Wilkinson, Darren (University of Newcastle, UK)
Parameter inference for stochastic kinetic models of bacterial gene regulation: a Bayesian approach to systems biology. [discussion]

(with a possible incoming update on Mark Huber’s comments if we manage to get the simulations running in due time).

València 9 papers on line

Posted in Books, Statistics, University life with tags , , on June 11, 2010 by xi'an

Just received this email from José Bernardo:

The pdf files of the Valencia 9 invited papers are now available online at the conference webpage, as a link placed by the author name in the V9 invited program list. These are the  last version sent to me by the author, and will be substituted by more current ones as they become available.

I remind you that  you are encouraged to submit written contributions to the discussion of any of these 24 papers even if you could not attend the meeting. Your discussions should be directly emailed by June 28th  to the author(s) of the invited papers, with a copy to me. I will also need the LaTeX source and the eps files of any figures used. Contributions should not exceed six typeset pages (including figures) for invited discussions, and three pages for contributed discussions.

This means anyone can send discussions on the papers presented at the meeting, to be published soon in the Valencia 9 proceedings by Oxford University Press. We are just out of a post-conference meeting with our students and colleagues here at CREST, where we discussed the invited papers by Ickstadt, Nicholls (actually, sadly not open to written discussions!), Meek, and Wilkinson . (On Monday, we plan to cover Dunson, Früwirth-Schnatter, Lopes, Polson, and Vanucci.)