Archive for the Travel Category

Bacon in the Library [jatp]

Posted in Books, Kids, pictures, Travel, University life with tags , , , , , , , on May 23, 2017 by xi'an

The Riddle of the Sands [not a book review]

Posted in Books, Kids, pictures, Travel with tags , , , , , on May 22, 2017 by xi'an

Visiting Dublin last weekend led me to learn of the sad end of the author of The Riddle of the Sands, (Robert) Erskine Childers.  To my surprise, I indeed found out when reading about the Irish Civil War of the early 20’s that he was executed by a firing squad as a member of the anti-Treaty Sinn Féin. What could have led the author of the role model of classical spy novels, The Riddle of the Sands, to this tragical ending?! While his book was immensely popular in Britain, to the point of impacting the preparations for war in the years before WWI, and while he served as instructor of pilots towards a possible attack of Germany through the very Frisian islands appearing in the novel, he turned progressively towards Irish nationalism, smuggling weapons on his own boat, and opposing the treaty with Britain to  the point of joining the anti-treaty Sinn Féin. When a pistol was found at his home, he was sentenced to death and executed two days later.

Rundlestone Session

Posted in Mountains, pictures, Travel, Wines with tags , , , , , , , , , on May 20, 2017 by xi'an

art brut

Posted in Mountains, pictures, Running, Travel with tags , , , , , , , on May 20, 2017 by xi'an

dreamed a dream by the old canal [jatp]

Posted in Kids, pictures, Running, Travel with tags , , , , , , , , on May 17, 2017 by xi'an

ABCπ

Posted in Books, pictures, Statistics, Travel, University life with tags , , , , on May 17, 2017 by xi'an

Ritabrata Dutta, Marcel Schöengens, Jukka-Pekka Onnela, and Antonietta Mira recently put a new ABC software on-line, called ABCpy for ABC with Python. The software aims at  an automated parallelisation of ABC runs, requiring only code to generate from the (generative) model and the choice of summary statistics and of associated distance. Alternatively an approximate likelihood (as in synthetic likelihood) can be used. The tolerance ε is chosen as a percentile of the prior predictive distribution on the distance. The versions of ABC found in ABCpy are

  1. Population Monte Carlo for ABC (PMCABC);
  2. sequential Monte Carlo ABC (ABC-SMC);
  3. replenishment Sequential Monte Carlo ABC (RSMC-ABC);
  4. adaptive Population Monte Carlo ABC (APMCABC);
  5. ABC with subset simulation (ABCsubsim); and
  6. simulated annealing ABC (SABC)

Anto mentioned ABCpy to me while in Harvard last week and I have not tested the program (my only brush with Python being the occasional call to latex2wp for SeriesB’log). And obviously, writing a blog about Monte (Carlo and) Python makes a link to the Monty Pythons irresistible:

from William’s castle [jatp]

Posted in pictures, Travel with tags , , , , , , on May 16, 2017 by xi'an