Archive for Holy Grail

a journal of the elderberry father

Posted in Books, Kids, Mountains, pictures, Travel, Wines with tags , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , on August 15, 2025 by xi'an

Read The Thousand Autumns of Jacob de Zoet by David Mitchell, which takes place in 1799 at the Dutch East India Company trading post Dejima in Nagasaki, with Jacob de Zoet being a young Dutch trader. There are a lot of threads, from the Tokugawa closure of Japan to foreigners (called sakoku), to the hidden Christians, to the mutual xenophobia of Dutch and Japanese officials, to the emergence of a global commercial system (with de Zoet carrying Adam Smith in his travel box), to supernatural powers of zen monks, &tc., &tc… As The Guardian puts it,  “the final effect is confused. The main problem seems to be that Mitchell hasn’t decided if he’s writing a straight historical novel, a grandly themed fable or a cheerfully trashy romp.” Also read a BD taking on Animal Farm, called Animal Castle where the dictator is a massive bull and the enforcers Dobermanns. With a modern twist and both humour and resistance in the face of tyranny.

Made more rhubarb preserve, more galettes and more almond butter. Of which the later may have costed me dear since a parking car presumably damaged my most useful bike to a point of no repair, while I was purchasing those almonds. (I ended up find a used and cheap version of my light city bike to be cannibalised for parts.) I also tried to make the galettes on a traditional cast iron billig (pancake pan), but could not keep the galettes from sticking. And became a Holy Grail father by making a jar of elderberry jelly out of the berries growing from an old elder in our garden, a first attempt if the last type of berry I made use of! It proved rather time-consuming from collecting the berries on high branches to combing them from the stems, to cleaning them and to finally press them into a juice (that need be well-boiled to avoid poisonous cyanide effects!). Also made a few jars of blackberry jam out of invading vines from a deceased neighbour’s garden, which took about a tenth of the time necessary for the elderberry jelly.

Watched Old Guard 2, irremediably terrible (in The Guardian‘s terms, “this delayed Netflix sequel is an incomplete mess”). And the 2009 Japanese series Jin, another time-trap scenario when a character gets sucked into an earlier era (1860’s Edo Japan in this case) and brings changes while trying to avoid impacting the current era. As a neurosurgeon having to fight cholera with no drugs. Enjoyable enough, with a crazy samurai reminding me of Mifune Toshirō.  Apart the soapy parts and the long periods when the surgeon stares at the sun (without turning blind). But not as funny as the South Korean Mr. Queen. However it made me aware of the time when the Tokugawa shogunate ended and the Meiji Imperial Government took over. The characters include historical figures like Katsu Kaishū and Sakamoto Ryōma. I also discovered how much France and Britain were involved in this transition.

MCMskv #3 [town with a view]

Posted in Statistics with tags , , , , , , , , , , , , , on January 8, 2016 by xi'an

Third day at MCMskv, where I took advantage of the gap left by the elimination of the Tweedie Race [second time in a row!] to complete and submit our mixture paper. Despite the nice weather. The rest of the day was quite busy with David Dunson giving a plenary talk on various approaches to approximate MCMC solutions, with a broad overview of the potential methods and of the need for better solutions. (On a personal basis, great line from David: “five minutes or four minutes?”. It almost beat David’s question on the previous day, about the weight of a finch that sounded suspiciously close to the question about the air-speed velocity of an unladen swallow. I was quite surprised the speaker did not reply with the Arthurian “An African or an European finch?”) In particular, I appreciated the notion that some problems were calling for a reduction in the number of parameters, rather than the number of observations. At which point I wrote down “multiscale approximations required” in my black pad,  a requirement David made a few minutes later. (The talk conditions were also much better than during Michael’s talk, in that the man standing between the screen and myself was David rather than the cameraman! Joke apart, it did not really prevent me from reading them, except for most of the jokes in small prints!)

The first session of the morning involved a talk by Marc Suchard, who used continued fractions to find a closed form likelihood for the SIR epidemiology model (I love continued fractions!), and a talk by Donatello Telesca who studied non-local priors to build a regression tree. While I am somewhat skeptical about non-local testing priors, I found this approach to the construction of a tree quite interesting! In the afternoon, I obviously went to the intractable likelihood session, with talks by Chris Oates on a control variate method for doubly intractable models, Brenda Vo on mixing sequential ABC with Bayesian bootstrap, and Gael Martin on our consistency paper. I was not aware of the Bayesian bootstrap proposal and need to read through the paper, as I fail to see the appeal of the bootstrap part! I later attended a session on exact Monte Carlo methods that was pleasantly homogeneous. With talks by Paul Jenkins (Warwick) on the exact simulation of the Wright-Fisher diffusion, Anthony Lee (Warwick) on designing perfect samplers for chains with atoms, Chang-han Rhee and Sebastian Vollmer on extensions of the Glynn-Rhee debiasing technique I previously discussed on the blog. (Once again, I regretted having to make a choice between the parallel sessions!)

The poster session (after a quick home-made pasta dish with an exceptional Valpolicella!) was almost universally great and with just the right number of posters to go around all of them in the allotted time. With in particular the Breaking News! posters of Giacomo Zanella (Warwick), Beka Steorts and Alexander Terenin. A high quality session that made me regret not touring the previous one due to my own poster presentation.