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sofdem.bsky.social

@sofdem.bsky.social
43 followers 120 following 14 posts

Math optimization for environment and climate sofdem.github.io

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Canadian Dimension @canadiandimension.bsky.social · 02/09/2026
"The university is not just in crisis. The university is the crisis." Rinaldo Walcott (@blacklikewho.bsky.social) argues that Jason Arday's death lays bare a broken academic system built on unequal power, gatekeeping, and the grinding machinery of institutional recognition.
canadiandimension.com
The university is the crisis
The crisis of the university is its inability to be honest about the nature of its self-induced crisis. Its leaders or senior managers often share the perspectives of those who wish the university to ...
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sofdem.bsky.social @sofdem.bsky.social · 01/09/2026
Il quattrocento = XVe siècle
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Stephanie Lamy @stephlamy.bsky.social · 18/08/2026
So don't get distracted by the neonazis eg Cofnas. It's the politely ✌️concerned academics✌️ and a barrage of apologetic emails that organise this assault.
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Jennifer Ouellette @jenlucpiquant.bsky.social · 06/07/2026
Wordle, but for art history—Anthropeum turns the Met Museum into an online game www.scientificamerican.com/article/word...
scientificamerican.com
Wordle, but for art history—Anthropeum turns the Met Museum into an online game
Anthropeum is a daily game that uses the Met’s open-access data to showcase underrepresented art and artifacts
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arxiv math.OC @arxiv-math-oc.bsky.social · 08/07/2026
Antonio Sasaki (CMA), Sophie Demassey (CMA), Valentina Sessa (CMA) Spectral-gauge cuts for semidefinite programming arxiv.org/abs/2607.05935
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Ketan Joshi @ketanjoshi.co · 19/06/2026
A quick reaction to this amazing Politico story in which the head of Europe's biggest data centre lobby group just.............................................admits it www.politico.eu/article/euro... Longer version here w/ reckons on why GenAI ❤️ fossi lfuels so much youtu.be/FjfTm5NoOUY
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Nina Markl 🏳️‍⚧️🏳️‍🌈 @ninamarkl.bsky.social · 29/06/2026
i love being an ethics reviewer for computer science papers. sometimes you just gotta say ‘have you considered… not doing any of this?’
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Ben Recht @beenwrekt.bsky.social · 23/06/2026
My teacher and friend Dimitri Bertsekas passed away earlier this month. I wrote about his broad contributions to the field of numerical optimization and his deep impact on my writing and research.
argmin.net
A Tribute to Dimitri Bertsekas
My teacher and friend Dimitri Bertsekas passed away earlier this month.
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Elaine Burke @elaineburke.bsky.social · 23/06/2026
While you're cooking in the heat this week, do bear this in mind.
Screenshot from Politico.
Headline: Europe must choose between AI and climate goals, data center lobby says
Standfirst: Tech sector says only carbon-emitting gas plants are reliable enough today to power the EU’s AI goals.
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Blackavar @blackavar-inle.bsky.social · 09/06/2026
Hah, you literally beat me by a few seconds. I just checked my email and yes, that's the book. Here's a link to it: www.ucpress.edu/books/on-the...
ucpress.edu
On the Wrong Side by Nicole Bedera - Hardcover
Scholarship is a powerful tool for changing how people think, plan, and govern. By giving voice to bright minds and bold ideas, we seek to foster understanding and drive progressive change.
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Olivia Guest · Ολίβια Γκεστ @olivia.science · 06/09/2025
Finally! 🤩 Our position piece: Against the Uncritical Adoption of 'AI' Technologies in Academia: doi.org/10.5281/zeno... We unpick the tech industry’s marketing, hype, & harm; and we argue for safeguarding higher education, critical thinking, expertise, academic freedom, & scientific integrity. 1/n
Abstract: Under the banner of progress, products have been uncritically adopted or
even imposed on users — in past centuries with tobacco and combustion engines, and in
the 21st with social media. For these collective blunders, we now regret our involvement or
apathy as scientists, and society struggles to put the genie back in the bottle. Currently, we
are similarly entangled with artificial intelligence (AI) technology. For example, software updates are rolled out seamlessly and non-consensually, Microsoft Office is bundled with chatbots, and we, our students, and our employers have had no say, as it is not
considered a valid position to reject AI technologies in our teaching and research. This
is why in June 2025, we co-authored an Open Letter calling on our employers to reverse
and rethink their stance on uncritically adopting AI technologies. In this position piece,
we expound on why universities must take their role seriously toa) counter the technology
industry’s marketing, hype, and harm; and to b) safeguard higher education, critical
thinking, expertise, academic freedom, and scientific integrity. We include pointers to
relevant work to further inform our colleagues.Figure 1. A cartoon set theoretic view on various terms (see Table 1) used when discussing the superset AI
(black outline, hatched background): LLMs are in orange; ANNs are in magenta; generative models are
in blue; and finally, chatbots are in green. Where these intersect, the colours reflect that, e.g. generative adversarial network (GAN) and Boltzmann machine (BM) models are in the purple subset because they are
both generative and ANNs. In the case of proprietary closed source models, e.g. OpenAI’s ChatGPT and
Apple’s Siri, we cannot verify their implementation and so academics can only make educated guesses (cf.
Dingemanse 2025). Undefined terms used above: BERT (Devlin et al. 2019); AlexNet (Krizhevsky et al.
2017); A.L.I.C.E. (Wallace 2009); ELIZA (Weizenbaum 1966); Jabberwacky (Twist 2003); linear discriminant analysis (LDA); quadratic discriminant analysis (QDA).Table 1. Below some of the typical terminological disarray is untangled. Importantly, none of these terms
are orthogonal nor do they exclusively pick out the types of products we may wish to critique or proscribe.Protecting the Ecosystem of Human Knowledge: Five Principles
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Michael Barany @mjb.mathstodon.xyz.ap.brid.gy · 02/06/2026
Since September I've been working with an international group to develop what we hope can be a response from the mathematics community to artificial intelligence in maths. The Leiden Declaration is now posted and open for signatures: leidendeclaration.ai #LeidenDeclaration
leidendeclaration.ai
Leiden Declaration on Artificial Intelligence and Mathematics
This declaration calls for action to address the challenges posed by the use of artificial intelligence within mathematics research.
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Mathilde Saliou @mathildesaliou.com · 26/05/2026
Nouvelle page web fav' isaiprofitable.com
"Is AI profitable yet ? No. Everyones's broke." (sauf Nvidia)
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Iris van Rooij 💭 @irisvanrooij.bsky.social · 28/02/2026
📚 Now reading 📚 Mary Everest Boole (1909). Philosophy and Fun of Algebra. archive.org/details/phil... (h/t @olivia.science) 1/🧵
PHILOSOPHY & FUN OF ALGEBRA

BY

MARY EVEREST BOOLE

AUTHOR OF

“PREPARATION OF THE CHILD FOR SCIENCE,” ETC.
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Dr. Serge Zaka @sergezaka.bsky.social · 23/05/2026
@infoclimat.fr et @dataforgoodfr.bsky.social lancent l’un des portails les plus complets jamais réalisés en France sur l’évolution du climat : dataclimat.fr ➡️Notre objectif ? Combattre la désinformation climatique par la science et par les faits. ➡️Notre devise ? Les faits, rien que les faits. 2/4
dataclimat.fr
DataClimat - Dashboard
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Dr Mel T @drmel.bsky.social · 20/05/2026
‘Male professors ‘excuse’ gender disparities in academia by referring to women's preferences or ‘justify’ them by appealing to meritocratic standards.’ onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
The Silent Standpoint: How Professors Explain Gender Disparities in Academia
Based on 77 qualitative interviews with professors in higher education, this article explores the interviewees' opinions on how gender disparities in academia should be explained. We show that male p...
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Dr. Holly Walters @manigarm.bsky.social · 17/05/2026
I'm sorry, what? In writing my first monograph, I spent six weeks trying to track down a citation in TWO languages I didn't know. And good thing too, because the citation was wrong. That's scholarship. That's research. You know, the thing we're trained to do?!?
The reactions of some researchers on Twitter finally being held responsible for not having read the very paper they submitted are... something. Mainly, they don't think they should have to check every citation or make sure the data is real and accurate. Because it's too hard, I guess.
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Mathias Girel @mathiasg.bsky.social · 09/11/2025
Guide intéressant: The Anti-Autocracy Handbook: A Scholars' Guide to Navigating Democratic Backsliding zenodo.org/records/1569...
zenodo.org
The Anti-Autocracy Handbook: A Scholars' Guide to Navigating Democratic Backsliding
The Anti-Autocracy Handbook is a call to action, resilience, and collective defence of democracy, truth, and academic freedom in the face of mounting authoritarianism. It tries to provide guidance to ...
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sofdem.bsky.social @sofdem.bsky.social · 24/03/2026
Merci pour le partage. Visualiser aussi l’abstention serait il pertinent ?
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Sophie Huiberts @sophie.huiberts.me · 20/03/2026
MIP European Workshop 2 October 19-21, Rome This is my favorite event in the world. Save the date
mixedinteger.org
Mixed Integer Programming European Workshop 2026
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404 Media @404media.co · 12/03/2026
This is Nathan Cavanaugh, another DOGE staffer explaining how he flagged grants at NEH for "DEI" which would be reviewed for termination. 404 Media has reviewed hours of this footage and we'll have more soon. Part of a lawsuit by @acls1919.bsky.social, @modernlanguage.bsky.social + @historians.org
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ArXiv math.OC Optimization and Control @optb0t.bsky.social · 23/01/2026
📚 New Arxiv Paper Title: Localization of complementarity eigenvalues Authors: Antonio Sasaki (CMA, PSL), Sophie Demassey (CMA, PSL), Valentina Sessa (CMA, PSL) Read more: arxiv.org/abs/2601.15789
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Marco Lübbecke @mluebbecke.bsky.social · 10/02/2026
our #openaccess book on "branch-and-price" is finally published; you can download it here link.springer.com/book/10.1007... #orms @springernature.com
Springer advertisement for the "Branch-and-Price" book
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Arnaud Bontemps @arnaudbontemps.bsky.social · 28/01/2026
Derrière notre rapport à la hiérarchie, c'est tout un système bureaucratique qui est en jeu. C’est une logique qui fait qu'on regarde "vers en haut", vers l'approbation de nos chef.fe.s, plutôt qu'en face de nous, là où se trouvent les citoyennes et citoyens. 4/10
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Max-Planck-Gesellschaft @maxplanck.de · 22/01/2026
Female scientists have to wait longer for their articles to be reviewed than their male colleagues. An analysis of 36.5 million papers in the life sciences shows that for females it took 115 days to reach a decision, compared to 101 days for men journals.plos.org/plosbiology/... @plosbiology.org
Median time under review (time intervened from submission to acceptance) of articles indexed in PubMed with a female first author (n = 2,562,262), a male first author (n = 3,405,821), a female corresponding author (n = 975,010), a male corresponding author (n = 1,946,469), a female first author and a female corresponding author (n = 757,878), a male first author and a male corresponding author (n = 1,357,835), all-female authors (n = 650,280), and all-male authors (n = 2,146,799)
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Joh Peccadille @peccadille.bsky.social · 18/01/2026
Je viens de tomber sur un truc fascinant. En 1970, la FNAC et Paris ont organisé un concours photo basé sur un découpage géométrique de Paris. Ce site permet de visionner 30 000 des photos produites à cette occasion paris1970.jeantho.eu/index.html
paris1970.jeantho.eu
C'était Paris en 1970
Photographies numérisées du fonds C'était Paris en 1970
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Dr. Aaron Thierry @thierryaaron.bsky.social · 17/01/2026
This one by @ferracimo.bsky.social ... "If you're a researcher & want to have real-world impact, this is essential reading"- @charliejgardner.bsky.social "A vital read for academic relevance in our century of climate, ecological & political crises'- @jksteinberger.bsky.social
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Jack @jackinpogform.bsky.social · 12/01/2026
I'll say again: The easiest way to radicalise someone is to ask them their favourite hobby and demonstrate how capitalism has fucked it up.
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Paper Skygest Team @paper-feed.bsky.social · 19/08/2025
**Please repost** If you're enjoying Paper Skygest -- our personalized feed of academic content on Bluesky -- we'd appreciate you reposting this! We’ve found that the most effective way for us to reach new users and communities is through users sharing it with their network
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Ambroise Garel @ambroisegarel.com · 09/01/2026
Tiens, les "Oblique Strategies" de Brian Eno sont disponibles sous forme de site web : ob-strat.netlify.app C'est bien amusant à utiliser pour écrire, je suppose que ça le sera encore plus pour la team zicos (cc @artuandelierree.com @zus.bsky.social) Wiki : en.wikipedia.org/wiki/Oblique...
ob-strat.netlify.app
Brian Eno's Oblique Strategies
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Dr. Aaron Thierry @thierryaaron.bsky.social · 30/11/2025
I recall @philipcball.bsky.social wrote a book about this...
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sofdem.bsky.social @sofdem.bsky.social · 28/11/2025
Et merci de ne pas reporter plus encore la charge (rapporteuses et jurys) sur les rangs B à défaut de femmes rang A :)
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sofdem.bsky.social @sofdem.bsky.social · 19/11/2025
Yes you’re totally right, just they sound a bit too anthropomorphic to me
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sofdem.bsky.social @sofdem.bsky.social · 19/11/2025
+1 (for column generation) for Benders I use the bilevel terms: upper/lower level
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sofdem.bsky.social @sofdem.bsky.social · 31/10/2025
Parce qu’une partie des Mines PSL est implantée à Sophia depuis plus de 50 ans.
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sofdem.bsky.social @sofdem.bsky.social · 17/10/2025
mais ces formations (sérieuses) là ne sont pas trop touchées car toutes les entreprises ne sont pas prêtes à renoncer à ces compétences. La situation des sciences humaines et fondamentales est plus préoccupante, et ce n’est pas le problème de chatgpt. Je crois.
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sofdem.bsky.social @sofdem.bsky.social · 17/10/2025
Non c’est juste faux: ni le contributeur de l’article ni ChatGPT ne sauraient expliquer aujourd’hui la “supply chain optimization” ni même plagier correctement un livre sur le sujet
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Sophie Huiberts @sophie.huiberts.me · 27/07/2025
This story of the discovery of Alison Doig the person is wild pursuit.unimelb.edu.au/articles/cel...
The first author of that paper was his own supervisor, Ailsa Land, who was still at the London School of Economics. But he did not know what had become of the second author. “All I know is that she was Australian and that she shares your name,” Gilbert said to me.

Many years later, I started teaching optimisation (and her own branch-and-bound method) at the University of Melbourne. I always mentioned the mystery of this Australian woman who was my namesake and who had disappeared after publishing such an influential paper.

After one of these classes, a student approached me and said, “Professor, there’s a tutor here named Alison. Maybe it’s her.”

With little hope, I looked into it, and to my surprise, the tutor was indeed Alison Doig, now Alison Harcourt. My desire was to run, knock on each one of my colleagues’ doors and ask: “Do you know who that woman is?”.
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Guillaume D. @gdeleur.bsky.social · 24/07/2025
Les abonnés de @politis.fr ont libéré le formidable entretien réalisé par @elsagambin.bsky.social avec la pédopsychiatre Fanny Gollier-Briant sur la santé mentale des adolescents et des jeunes adultes . A lire absolument, ici ⤵️ www.politis.fr/articles/202...
politis.fr
Fanny Gollier-Briant : « Il faut absolument repolitiser la souffrance des jeunes »
La pédopsychiatre au CHU de Nantes considère le « plan psychiatrie » présenté en juin par le gouvernement largement insuffisant, alors que les chiffres sur la santé mentale des adolescents et des jeun...
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Sophie Huiberts @sophie.huiberts.me · 01/07/2025
Marouane is live tweeting all #EuroMIP25 talks, follow him to stay up to date
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Marouane Felloussi @marouanefl.bsky.social · 03/07/2025
Sophie Demassey @sofdem.bsky.social kicks off the third and final day of #EuroMIP25 with a talk on Block Coordination of Nonlinear Network and Discrete Optimization. She focuses on scheduling nonlinear flow networks, with an application to load shifting in drinking water systems. #EuroMIP25 #orms
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sofdem.bsky.social @sofdem.bsky.social · 03/07/2025
Thank you Marouane for your amazing commitment to synthesize the talks and especially this one :) I would not have been able to summarize it with more precision! Thank you
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Max Kennerly @maxkennerly.bsky.social · 18/06/2025
Like I've said before, if you have any doubts about climate change, just go to a super-boring insurance conference and listen to the super-boring panels where they dryly talk about the growing threat of disasters so catastrophic and unpredictable in scope they simply cannot be insured at any price.
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sofdem.bsky.social @sofdem.bsky.social · 07/06/2025
Thank you Thiago for your synthesis of the talks. Much appreciated!
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sittingbisontin.bsky.social @sittingbisontin.bsky.social · 06/06/2025
Trump banned important words from research - 350 of them. So we said 🛑Touche pas à mon pote!✊ and stuffed as many of them as we could into the abstract of our new math paper. 🫵You can do the same!🫵Join the cause with your next abstract - they will have no choice but to hear us. #AdoptCensoredWords
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Thiago Serra @thserra.bsky.social · 24/04/2025
Bill Cook strikes again: shortest tour of 81,998 bars in South Korea is the top story tonight at Hacker News www.math.uwaterloo.ca/tsp/korea/in...
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The New Yorker @newyorker.com · 20/04/2025
Hitler’s rise to power shows how a country with a functional, if flawed, democratic machinery handed absolute power over to someone whom the conservative political class regarded as a chaotic clown with a violent following.
nyer.cm
The Forgotten History of Hitler’s Establishment Enablers
The Nazi leader didn’t seize power; he was given it.
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Stephanie M. Lee @stephaniemlee.bsky.social · 21/03/2025
"On October 8, 1931, a law went into effect requiring every Italian university professor to sign an oath pledging their loyalty to the government of Benito Mussolini. Out of over 1,200 professors in the country, only 12 refused. All of them were immediately fired." www.chronicle.com/article/what...
chronicle.com
Opinion | What Autocrats Want From Academics: Servility
In 1931, Italian scholars were made to take loyalty oaths. Will that happen to us?
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Thiago Serra @thserra.bsky.social · 08/03/2025
More summer schools added to the list today! thiagoserra.com/2025/02/04/s...
thiagoserra.com
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sofdem.bsky.social @sofdem.bsky.social · 02/03/2025
Still there exist well documented use cases for the second category, like lagrangian relaxation applied to electricity power production planning at short mid and long term
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