Archive for AI

Choose France – CNRS AI Rising Talents Programme for exceptionally talented early-career AI researchers

Posted in pictures, Travel, University life with tags , , , , , , , , , on October 29, 2021 by xi'an

The French national scientific research institute, CNRS, is launching a one-shot call for hiring early-career  AI researchers on a 5 year 100% research position in any of the CNRS research units in France. Including ours in Paris Dauphine. The offer is quite generous in that the attached grant provides a full professor salary and support to hire postdocs and PhD students. Early career means two to seven years after PhD. The deadline is 30 November.

pr[AI]rie day

Posted in Statistics with tags , , , , , , on October 19, 2021 by xi'an

the mechanical [book review]

Posted in Books, pictures with tags , , , , , , , , , , , , on June 4, 2021 by xi'an

Read this 2015 book by Ian Tregillis with growing excitement as I was first unsure why I had ordered it. It is a mix of the Baroque Cycle and of the Difference engine, with Huygens playing the central role (rather than Newton). The postulate of the story is that he found [in the 1600’s] a way to create robots (or mechanicals, or yet Clakkers) with autonomy, prodigious strength, and unlimited “life” time. Endowing the Netherlands with such an advantage as to become the unique European power. Except for a small population of French people, living in exile in Montréal, renamed as Marseille-in-the-West, where the descendants of Louis XIV were desperately fighting the Dutch robots with their barely sufficient chemical skills… In addition to this appealing alternate history, where the French are arguing about the free will of the machines, and building underground railways to convey rogue mechanicals outside the Dutch empire, partly for being Catholics and hence following the Pope’s doctrine [and partly to try to produce their own robots], where the Pope is also a refugee in Québec, and where New Amsterdam has not turned into New York, but is a thriving colonial city in America, linked to the mother country by mechanical boats and Zeppelin-like airships, the machines are constrained to obey the humans, with the Queen’s wishes at the top of a hierarchy of constraints. And no Asimov’s law to prevent them from being used as weapons, to the French’s sorrow! But their degree of autonomous thought is such that a mere loosening of a component may remove the compulsion and turn them into rogues, i.e, free willed robots. On the converse side, a nefarious guild in charge of a Calvinist faith and of the maintenance of the robots is attempting to extend this control of the Dutch State over some humans. Which makes for a great setting discussing the blurry border between humans and AIs, with both humans and Clakkers bringing their arguments to the game… I am now eagely waiting for the second and third volumes in the series of The Alchemy Wars to arrive in the mail to continue the story!

Lorenz-eScience competition

Posted in pictures, Statistics, Travel, University life with tags , , , , , , , on May 7, 2021 by xi'an

the Ramanujan machine

Posted in Books, Kids, pictures, University life with tags , , , , , , , , , , , on February 18, 2021 by xi'an

Nature of 4 Feb. 2021 offers a rather long (Nature-like) paper on creating Ramanujan-like expressions using an automated process. Associated with a cover in the first pages. The purpose of the AI is to generate conjectures of Ramanujan-like formulas linking famous constants like π or e and algebraic formulas like the novel polynomial continued fraction of 8/π²:

\frac{8}{{{\rm{\pi }}}^{2}}=1-\frac{2\times {1}^{4}-{1}^{3}}{7-\frac{2\times {2}^{4}-{2}^{3}}{19-\frac{2\times {3}^{4}-{3}^{3}}{37-\frac{2\times {4}^{4}-{4}^{3}}{\ldots }}}}

which currently remains unproven. The authors of the “machine” provide Python code that one can run to try uncover new conjectures, possibly named after the discoverer! The article is spending a large proportion of its contents to justify the appeal of generating such conjectures, with several unsuspected formulas later proven for real, but I remain unconvinced of the deeper appeal of the machine (as well as unhappy about the association of Ramanujan and machine, since S. Ramanujan had a mystical and unexplained relation to numbers, defeating Hardy’s logic,  “a mathematician of the highest quality, a man of altogether exceptional originality and power”). The difficulty is in separating worthwhile from anecdotal (true) conjectures, not to mention wrng conjectures. This is certainly of much deeper interest than separating chihuahua faces from blueberry muffins, but does it really “help to create mathematical knowledge”?

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