Today, I am travelling to Vienna for a few days, primarily for assessing a grant renewal for a research consortium federating most Austrian research groups on a topic for which Austria is a world-leader. (Sorry for being cryptic but I am unsure how much I can disclose about this assessment!) And taking advantage on being in Vienna, for a two-day editing session with Sylvia Früwirth-Schnatter and Gilles Celeux on our Handbook of mixtures analysis project. Which started a few years ago with another meeting in Vienna. And taking further advantage on being in Vienna, for an evening at the Volksoper, conveniently playing Die Zauberflöte!
Archive for Vienna
zurück nach Wien
Posted in pictures, Running, Statistics, Travel, University life, Wines with tags Austria, Book, Die Zauberflöte, mixtures of distributions, opera, Vienna, Volksoper Wien, Wolfgang Amadeus Mozart, WU Wirtschaftsuniversität Wien on September 16, 2017 by xi'anLeopold Museum, Wien
Posted in pictures, Travel with tags Egon Schiele, expressionism, Gustav Klimt, Leopold Museum, Spanish flu, Vienna on March 27, 2016 by xi'an
While in Vienna last December, we visited the Leopold Museum, which contains a large collection of paintings of Gustav Klimt and even more of Egon Schiele. This was a fantastic opportunity, not only to discover many paintings I did not know, but also to set both painters within their time and within Vienna. And to realise the magnitude of the tragic destiny of Schiele, who died three days after his wife from the Spanish flu (and from living in a damp apartment) but also who was sent to jail a few
weeks in 1912 for pornography and abduction, who saw his father die early from syphilis, and who abandoned his devoted lover Wally to marry “
advantageously”… The exhibit also puts his life and work in perspective with the final years of imperial Vienna and of a doomed way of life. (Klimt, who was Schiele’s mentor and most admirative of his talent, also died from the Spanish flu in early 1918. The museum contains some of his most famous “Golden phase” paintings as well as some less known countryside paintings that reminded me of Seurat.) Although this is a rather rhetorical interrogation, one wonders what could have happened to Schiele and his unique style, had he survived the Spanish flu. Maybe he would not have survived that long, given that his name was included into the “degenerate artists” list made twenty years later by the Nazis…
view from my office, circa 1905
Posted in Books, pictures, Travel with tags Austria, Emilie Louise Flöge, France, Gustav Klimt, Paris, Porte Dauphine, postcard, Université Paris Dauphine, Vienna on December 13, 2015 by xi'anzurück in Wien
Posted in Books, pictures, Statistics, Travel, University life, Wines with tags ABC, Austria, Bayesian model choice, finite mixtures, handbook of mixture analysis, Monte Carlo Statistical Methods, random forests, Vienna, WU Wien on December 7, 2015 by xi'an
Back in Vienna after a little bit more than a year! The opportunity was a working meeting on a CRC Handbook of mixture analysis, Sylvia Früwirth-Schnatter, Gilles Celeux and myself are editing together, along with about twenty authors, half of which also came to Vienna for the weekend. Great opportunity to all work together, towards a more coherent and comprehensive volume, as well as to enjoy the earliest stages of the Viennese winter. Very mild winter so far. I also gave a seminar Friday morning, thinking until I saw the attached poster that I was going to speak on mixtures for testing..! Except for a few seconds of uncertainty on the second version of the random forest approach, I still managed to survive the switch (in a fabulous seminar room, overlooking the Prater…) The two days meeting was very rewarding, with major changes in the contents and the goals of many chapters, including those I am contributing to.
astronomical evidence
Posted in pictures, Statistics, University life with tags ABC, ABC-MCMC, arXiv, astrostatistics, Bayes factor, Bayesian model selection, BAYSM 2014, dark energy, evidence, Ewan Cameron, falsification, reversible jump MCMC, Vienna on July 24, 2015 by xi'an
As I have a huge arXiv backlog and an even higher non-arXiv backlog, I cannot be certain I will find time to comment on those three recent and quite exciting postings connecting ABC with astro- and cosmo-statistics [thanks to Ewan for pointing out those to me!]:
- Weighted ABC: a new strategy for cluster strong lensing cosmology with simulations, by Madhura Killedar et al. [Madhura won one of the three prizes at the BAYESM meeting last year]:
“We investigate the uncertainty in the calculated likelihood,and consequential ability to compare competing cosmologies…”
- Inflation, evidence and falsifiability, by Giulia Gubitosi et al.:
“By considering toy models we illustrate how unfalsifiable models and paradigms are always favoured by the Bayes factor…”
- Bayesian model selection without evidences: application to the dark energy equation-of-state, by Sonke Hee et al.:
“A method is presented for Bayesian model selection without explicitly computing evidences … without the need for reversible jump MCMC techniques.”
![When visiting the Leopold Museum in Wien, I came across this postcard sent by Gustav Klimt to his friend Emilie Louise Flöge, with a very different view of [not yet!] Avenue Foch. My office and the whole university building did not yet exist at the time](https://i0.wp.com/xianblog.fr/wp-content/uploads/2015/12/portedaup-e1449495008714.jpg?resize=450%2C364&ssl=1)