Archive for Huawei

what the hell..?!

Posted in Books, Kids, pictures with tags , , , , , , , , , , , , , on June 28, 2025 by xi'an

When seeing that Jorge Bergoglio’s autobiography, Hope, was part of the weekly book review in Nature, I was at the end of my Latin [customary French expression for it’s all Greek to me] as I could not get the point since the brief stint of his as a chemical technician did not sound like a convincing argument. Despite his more benevolent approach to Science than the one enforced by his predecessor Maffeo Barberini (aka Urban VIII) who banned Galileo’s book, and declared him into an heretic, the Church cannot but balk at scientific research that imperils its irrational beliefs, to wit Angelo Roncalli (aka John XXIII) statement that “no real disagreement can exist between the theologian and the scientist provided each keeps within his own limits.”

The Guardian on [and on and on] Grothendieck

Posted in Books, Kids, Mountains, University life with tags , , , , , , , , , , , , , on September 11, 2024 by xi'an

A very looong piece in The Guardian of 31 August relates the life and achievements of Grothendieck in a highly romanticized way, hinting at hidden secrets contained in the tens of thousands of pages he wrote during his 26 years of retirement in Lasserre, Pyrénées… (Even when acknowledging that Grothendieck’s life and personality are providing enough fodder for a whole series of novels!)

“Grothendieck’s genius defied his attempts at erasing his own renown. He lurks in the background of one of Cormac McCarthy’s final novels, Stella Maris, as an éminence grise who leads on its psychically disturbed mathematician protagonist.”

With very little about maths, apart the mumbo-jumbo usually associated with non-specialists trying to convey the unique ability of a researcher with images and allegories aplenty! The only factual information is that Huawei sees worth in Grothendieck’s concept of topos (within his general theory of categories) toward future AIs and that they hired French 2002 Fields medalist Laurent Lafforgue to explore this subject (besides not mentioning Huawei creating an algebraic geometry chair at the IHÉS, the very place Grothendieck resigned from due to IHÉS receiving military funds).

“Applied to AI, toposes could allow computers to move beyond the data associated with, say, an apple; the geometric coordinates of how it appears in images, for example, or tagging metadata. Then AI could begin to identify objects more like we do – through a deeper “semantic” understanding of what an apple is. But practical application to create the next generation of “thinking” AI is, according to Lafforgue, some way off.”

The author of the Guardian piece, Phil Hoad, is also very reserved about the ultimate purpose of Huawei in funding this research (and the new Centre Lagrange in the centre of Paris), for its obscure links with the Chinese Government and the Chinese military, a concern also expressed by some French mathematicians who signed a tribune in 2021 calling for a boycott of the Centre… But leaving open the door open on whether or not the unexplored thousands of pages blackened by Grothendieck could contain mathematical gems, rather than esoteric ramblings aggravated by his complete shunning of society. Which sounds quite unlikely.

stats postdoc in Barcelona

Posted in Statistics, Travel, University life with tags , , , , , , , , , , , , on April 5, 2022 by xi'an

Here is a call for exciting postdoc positions in high-dimensional statistics for network & graphical models analysis, Barcelona:

We have two post-doctoral positions to work on a range of topics related to high-dimensional statistics for networks, ultra high-dimensional graphical models, frameworks linking networks and graphical models, multivariate structural learning and time series analysis. The positions are for 1 year, with a potential for extension to 18 months, with a gross yearly salary of 40,000€. The scope is ample and allows for sub-projects related to mathematical statistics and statistical learning theory, data analysis methodology in penalized likelihood and Bayesian statistics, and computational methods. The positions are related to a Huawei grant, which also offers opportunities to explore applications of the developed theory & methods.

The project is primarily hosted by the Statistics group at UPF and the BSE Data Science Center in Barcelona (Spain), and is in collaboration with Luc Devroye at McGill University in Montreal (Canada) and Piotr Zwiernik at the University of Toronto (Canada). The primary supervisors are Christian Brownlees, Luc Devroye, Gábor Lugosi, David Rossell and Piotr Zwiernik, although collaborations with other professors of these research groups are also possible.

Interested candidates should send an updated CV and a short research statement to David Rossell (david.rossell AT upf.edu). They should ask 3 referees to send a letter of reference on their behalf.

The deadline for applying for the first position is April 30 2022, the deadline for the second position is June 15 2022.

Nature tea[dbits]

Posted in Books, pictures, University life, Wines with tags , , , , , , , , , , , , , , , , on February 28, 2019 by xi'an

A very special issue of Nature (7 February 2019, vol. 556, no. 7742). With an outlook section on tea, plus a few research papers (and ads) on my principal beverage. News about the REF, Elsevier’s and Huawei’s woes with the University of California, the dangerous weakening of Title IX by the Trump administration, and a long report on the statistical analysis of Hurricane Maria deaths, involving mostly epidemiologists, but also Patrick Ball who took part in our Bayes for Good workshop at CIRM. Plus China’s food crisis and ways to reduce cropland losses and food waste. Concerning the tea part(y), a philogenetic study of different samples led to the theory that tea was domesticated thrice, twice in Yunnan (China) and once in Assam (India), with a divergence estimated at more than twenty thousand years ago. Another article on Pu-Ehr, with the potential impacts of climate change on this very unique tea. With a further remark that higher altitudes increase the anti-oxydant level of tea… And a fascinating description of agro-forestry where tea and vegetables are grown in a forest that regulates sun exposure, moisture evaporation, and soil nutrients.