Archive for sunset

ABC’ory in Banff [17w5025]

Posted in Books, Mountains, pictures, Statistics, Travel, University life with tags , , , , , , , , , , , on February 27, 2017 by xi'an

And another exciting and animated [last] day of ABC’ory [and practice]!  Kyle Cranmer exposed a density ratio density estimation approach I had not seen before [and will comment here soon]. Patrick Muchmore talked about unbiased estimators of Gaussian and non-Gaussian densities in elliptically contoured distributions which allows for running pseudo-MCMC than ABC. This reminded me of using the same tool [for those distributions can be expressed as mixtures of normals] in my PhD thesis, if for completely different purposes. In his talk, including a presentation of an ABC blackbox platform called ELFI, Samuel Kaski did translate statistical inference as inverse reinforcement learning: I hope this does not catch! In the afternoon, Dennis Prangle gave us the intuition behind his rare event ABC, which is not estimating rare events by ABC but rather using rare event simulation to improve ABC. [A paper I will a.s. comment here soon as well!] And Scott Sisson concluded the day and the week with his views on ABC for high dimensions.

While being obviously biased as the organiser of the workshop, I nonetheless feel it was a wonderful meeting with just the right number of participants to induce interactions and discussions during and around the talk, as well as preserve some time for pairwise interactions. Like all other workshops I contributed to in BIRS along the years

07w5079 2007-07-01 Bioinformatics, Genetics and Stochastic Computation: Bridging the Gap
10w2170 2010-09-10 Hierarchical Bayesian Methods in Ecology
14w5125 2014-03-02 Advances in Scalable Bayesian Computation

this is certainly a highly profitable one! For a [major] change, the next one [18w5023] will take place in Oaxaca, Mexico, and will see computational statistics meet molecular simulation. [As an aside, here are the first and last slides of Ewan Cameron’s talk, appropriately illustrating beginning and end, for both themes of his talk: epidemiology and astronomy!]

201702211013-cameron
img-20170221-wa0006

 

 

Ponte de Ca’ Marcello [jatp]

Posted in pictures, Running, Travel with tags , , , , , on November 2, 2016 by xi'an

tramonto a Venezia [jatp]

Posted in pictures, Travel with tags , , , , , , , on October 27, 2016 by xi'an

Caen hospital [jatp]

Posted in Kids, pictures, Travel with tags , , , , on October 9, 2016 by xi'an

Mount Shasta

Posted in Kids, Mountains, pictures, Travel with tags , , , , , on August 14, 2016 by xi'an

a sunset no one ever saw

Posted in pictures, Travel with tags , , on March 13, 2016 by xi'an

sunset from my office

Posted in pictures, University life with tags , , , , on November 10, 2015 by xi'an