Corcoran medal
Robin Ryder's blog | Statistics and other stuff
by Robin Ryder
2y ago
Two weeks ago, I had the great honour of receiving the 2012 Corcoran memorial medal and prize for my doctoral dissertation. It is awarded by Oxford’s Department of Statistics in memory of Stephen Corcoran, a student who died in 1996 before having time to complete his DPhil. Being a Statistics prize, there is smoothing in the award process: it is awarded every two years, to a DPhil which was completed in the last four years (i.e. between October 2008 and October 2012 in my case). The ceremony was part of the Department’s 25th anniversary celebrations. Nils Lid Hjort gave a lecture on his “confi ..read more
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Expect some blog posts in French
Robin Ryder's blog | Statistics and other stuff
by Robin Ryder
2y ago
This is just a warning that from now on, a small proportion of my blog posts will be in French. I’ll use French for posts which I think will appear primarily to French speakers: either posts for students of courses that I give in French, or posts on the French higher educational system which would be of little interest to people outside of France. I guess this is similar to what Arthur Charpentier does. In particular, I’ll keep posting in English for anything related to my research topics ..read more
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Uniforms summing to a uniform
Robin Ryder's blog | Statistics and other stuff
by Robin Ryder
3y ago
A code golf question by xnor led to the following nice problem: let and be 2 random variables such that marginally, and . Find a joint distribution of such that . You need and to be negatively correlated for this. I wrote the problem in the lab coffee room, leading to nice discussions (see also Xian’s blog post). Here are two solutions to the problem: 1. Let and .  Then: and are both , hence and hence 2. A second solution, found by my colleague Amic Frouvelle, is to sample uniformly from the black area: I quite like that the first solution is 1d but the second is 2d. &nbs ..read more
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On Unbiased MCMC with couplings
Robin Ryder's blog | Statistics and other stuff
by Robin Ryder
3y ago
Pierre Jacob, John O’Leary and Yves Atchadé’s excellent paper on Unbiased MCMC with couplings will be read at the Royal Statistical Society tomorrow; Pierre has already presented the paper on the Statisfaction blog. Although we won’t be present tomorrow, we have read it at length in our local reading group with Xian Robert and PhD students Grégoire Clarté, Adrien Hairault and Caroline Lawless, and have submitted the following discussion. We congratulate the authors for this excellent paper. In “traditional” MCMC, it is standard to check that stationarity has been attained by running a small nu ..read more
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Reproducing the kidney cancer example from BDA
Robin Ryder's blog | Statistics and other stuff
by Robin Ryder
3y ago
This is an attempt at reproducing the analysis of Section 2.7 of Bayesian Data Analysis, 3rd edition (Gelman et al.), on kidney cancer rates in the USA in the 1980s. I have done my best to clean the data from the original. Andrew wrote a blog post to “disillusion [us] about the reproducibility of textbook analysis”, in which he refers to this example. This might then be an attempt at reillusionment… The cleaner data are on GitHub, as is the RMarkDown of this analysis. library(usmap) library(ggplot2) d = read.csv("KidneyCancerClean.csv", skip=4) In the data, the columns dc and dc.2 correspo ..read more
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Black on black tooltips in Firefox with Kubuntu
Robin Ryder's blog | Statistics and other stuff
by Robin Ryder
3y ago
I use Firefox on Kubuntu, and for a long time I had an issue with the tooltips: the characters were printed in black on a black background (a slightly different shade of black, but still very difficult to read). I used to have a solution with Stylish, but it broke in Firefox 57 (Firefox Quantum). Here is a solution which works now, for anyone else with the same issue. Navigate to ~/.mozilla/firefox/ Find your Firefox profile: a folder with a name like 1rsnaite.default Navigate to ~/.mozilla/firefox/1rsnaite.default/chrome/ or whatnot (you might need to create the chrome/ folder) Using your fa ..read more
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Post-doctoral position in Paris: Statistical modelling for Historical Linguistics
Robin Ryder's blog | Statistics and other stuff
by Robin Ryder
3y ago
A postdoc position is open, to come work with me and several Linguists at École Normale Supérieure, on questions related to Statistical modelling for the history of human languages and for monkey communication systems. See the detailed announcement. Deadline for application is 23 August ..read more
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Lecturer position in Statistics at Dauphine
Robin Ryder's blog | Statistics and other stuff
by Robin Ryder
3y ago
An associate professor (“Maître de conférences”) position in Applied or Computational Statistics is expected to be open at Université Paris-Dauphine. The recruitment process will mostly take place during the spring, for an appointment date of 1 September 2017. However, candidates must first go through the national “qualification”. This process should not be problematic, but is held much earlier in the year: you need to sign up by 25 October (next week!), then send some documents by December. Unfortunately, the committee cannot consider applications from candidates who do not hold the “qualific ..read more
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David Cox is the inaugural recipient of the International Prize in Statistics
Robin Ryder's blog | Statistics and other stuff
by Robin Ryder
3y ago
David Cox was announced today as the inaugural recipient of the International Prize in Statistics. My first foray into Statistics was an analysis of Cox models I did for my undegraduate thesis at ENS in 2005. I had no idea back then that David Cox was still alive and active; in my mind, he was a historical figure, on par with other great mathematicians who gave their names to objects of study — Euler, Galois, Lebesgue… When I arrived at Oxford a few months later, I was amazed to meet him, and to see that he was still very active, both as a researcher and as the organizer of events for doctoral ..read more
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MCMSki 4
Robin Ryder's blog | Statistics and other stuff
by Robin Ryder
3y ago
I am attending the MCMSki 4 conference for the next 3 days; I guess I’ll see many of you there! I am organizing a session on Wednesday morning on Advances in Monte Carlo motivated by applications; I’m looking forward to hearing the talks of Alexis Muir-Watt, Simon Barthelmé, Lawrence Murray and Rémi Bardenet during that session, as well as the rest of the very strong programme. I’ll also be part of the jury for the best poster prize; there are many promising abstracts ..read more
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