Archive for hallucinations

SEINE AI

Posted in pictures, Statistics, University life with tags , , , , , , , , , , , , , , , , , , , , , , on March 23, 2026 by xi'an

Ten days ago I took part in the SEINE AI 2026 workshop in Jouy-en-Josas, near Paris (homestead of HEC), organised by the Huawei Paris Research Center.. In which I was invited to speak, even though I felt sort of an outlier given the deeply machine-learning, entreprenarial orientation of the meeting, with its theme being Building the Agentic Future of ICT, given that I chose to present our most recent Bayesian adversarial privacy paper. Hence, I stood within a game-theoretic, Bayesian, formal landscape, presumably loosing most of the audience and keeping them away from their lunch!

Other speakers included Simon Lucas from Queen Mary London on Simulation-based AI, which I had trouble distinguishing from building a statistical model by goodness of fit (and using bandits used for update), while focussing on competing on some computer game challenges. And Volker Tresp from LMU München on a tensor brain model that he opposes to a Bayesian brain (with a related paper entitled Bayes or Heisenberg: Who(se) rules? which we discussed in general terms over lunch, namely Bayesian learning vs. quantum updating. And Michal Valko from INRIA Paris (and other companies), who went full blast against the Bradley-Terry model!, with a title of Nash and Nemirovski walk into a bar! With a half-time technique approximating Nash equilibria that reminded me of leapfrog. Much entertaining talk that further provided a game-theoretic transition to mine’s.

As an aside, I played yesterday with ChatGPT composing my talk slides out of our arXiv document and it proved a disaster, with hallucinations of results and concepts not in the paper and a complete mess of handling graphs, first creating generic, fake, unrelated pictures, then inserting actual graphs haphazardly throughout the slides. The sorry result I obviously did not use as the workshop did not seem the ideal place for this sort of prank! The actual version only recycles a few of its summarising slides. (With ye Norse farce proper colour choice!)

 

Nature tidbits [Jan 2025]

Posted in Statistics with tags , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , on April 13, 2025 by xi'an

Entries of these two January issues on

– yet another 100th anniversary!, namely the founding paper of Heisenberg’s quantum mechanics paper in Zeitschrift für Physik, written on the Instagrammable island of Heligoland. With celebrations at the UNESCO in Paris, Anaheim (CA), Kumasi (Ghana), and Salvador de Bahia (Brazil)!;

– some bird species decorating their nest with shed snakeskins, to frighten predators;

– climate predictions for Trump 2.0, albeit the only certainty being it will get worse and worse (and only the beginning of a flow of articles on the Trumpian attacks on science and scientists);

– the curious plight of the open access journal elife loosing its impact factor after getting too open for Clarivate and then seeing submission from China falter;

– the first European cities from 6000 years ago being found in Ukraine (and Romania) within the Cucuteni-Trypillia culture, with apparently an equalitarian structure with no temple or elite, although the lack of written documents (besides beautiful clay figures whose style evolved over the period);

  • an AI tool that interprets spreadsheets (which I would find most useful, given my distaste of said spreadsheets!);

and how to help lab workers facing substance disorders. And break the attached taboos. Which reminded me of a colleague in that situation when I was head of a lab, years and years ago. And of the difficulty of handling the case all by myself…

Also

– a quick report on a Physics Review Letters paper about simulating elections results to spot whether or not margins of victory were properly distributed, having a distribution (for the scaled margins) mostly depending on voter turnout, with a universal shape! The concept behind this analysis is one of universality borrowed from statistical physics. (The fit does not work for the Ethiopian election of 2010 and the Belarus elections during 2004–2019, no wonder!);

– another book review of David Spiegelhalter’s Art of Uncertainty, by Yongyi Min, a statistician from the UN Statistics Division;

  • creating a DNA base for identifying children kidnapped during a conflict, as for the 20,000 Ukrainian children forcibly deported to Russia over the past three years;

  • a substantial survey article on neuromorphic computing (submitted in 2023!), about new forms of computing based on hardware/software co-design;

  • with more technologies to watch in 2025, and another long article (and the cover) on the strong impact of small-scale fisheries on sustainable development.