Houssam Zenati

136 posts

Houssam Zenati banner
Houssam Zenati

Houssam Zenati

@HoussamZenati

Machine learning, causal inference research. Research Fellow @GatsbyUCL. Previously @INRIA, @CriteoAILab

London, UK Katılım Kasım 2018
314 Takip Edilen242 Takipçiler
Houssam Zenati retweetledi
Bally Bagayoko
Bally Bagayoko@BallyBagayoko·
Monsieur Hervouet, J’ai entendu vos propos sur CNEWS : « La France a perdu le Mali, et nous on a Bally Bagayoko, un maire malien en France. » Je veux vous répondre avec calme, mais avec clarté. Je suis un élu de la République française. Je suis Français. Né de l’histoire de l’immigration, certes, fier de mes origines familiales, évidemment, mais pleinement Français et pleinement légitime dans les responsabilités que les citoyens m’ont confiées par le suffrage universel. En me qualifiant de « maire malien en France », vous ne parlez pas seulement de moi. Vous dites à des millions de Français issus de l’immigration qu’ils resteraient éternellement renvoyés à une origine, quelle que soit leur place dans la société, leur engagement ou leur attachement à la République. Ce qui est également préoccupant, c’est que ce type de propos est devenu si fréquent sur CNEWS qu’il est désormais difficile de parler de simple « dérapage ». Un dérapage suppose l’exception. Or lorsque des amalgames identitaires, des sous-entendus sur la légitimité de certains Français ou des oppositions permanentes entre origines et appartenance nationale deviennent récurrents, cela révèle une ligne éditoriale et un climat idéologique plus profonds. Cette banalisation est dangereuse pour le débat public. Elle nourrit la suspicion, fracture la communauté nationale et installe l’idée qu’il existerait des Français plus légitimes que d’autres. Cette vision est une impasse. Elle l’est aussi dans notre rapport à l’Afrique. Depuis plusieurs années, les peuples africains expriment une aspiration profonde à être respectés comme des partenaires souverains, traités d’égal à égal, et non plus comme d’anciennes colonies sur lesquelles la France conserverait une forme de tutelle politique, militaire ou culturelle. La France doit entendre ce message. Notre pays ne peut plus penser sa relation avec le continent africain à travers les réflexes d’une autre époque. Le temps du paternalisme et des logiques postcoloniales est révolu. Une nouvelle doctrine diplomatique doit émerger : fondée sur le respect mutuel, la coopération équilibrée et la reconnaissance pleine des souverainetés africaines. Le Mali n’a pas été « perdu » comme on perdrait un territoire ou une possession. Le Mali est un État souverain. Et si les relations entre nos deux pays traversent aujourd’hui une crise profonde, cela doit nous conduire à réfléchir avec lucidité sur les erreurs commises et sur la nécessité de reconstruire des liens plus justes. Faire le parallèle entre cette situation géopolitique et mon élection comme maire en France révèle précisément le problème : l’idée persistante que des Français comme moi seraient toujours perçus à travers le regard de l’ancienne relation coloniale. Je refuse cette assignation. Je suis un élu français. Je sers la République française. Et je continuerai à défendre une France fidèle à ses principes : l’égalité, la citoyenneté et le respect de la dignité de chacun.
Français
2.6K
8.7K
27.3K
816.3K
Houssam Zenati retweetledi
Advances on Adaptive Experimentation Workshop
Speaker spotlight #3: Kelly Zhang, Imperial College London. Can we build valid confidence intervals for the average reward of adaptive bandit algorithms? Kelly will present Bandit Simulation for Inference, a framework for inference with on-policy or off-policy bandit data.
Advances on Adaptive Experimentation Workshop tweet media
English
1
2
5
569
Houssam Zenati retweetledi
Advances on Adaptive Experimentation Workshop
Speaker spotlight #1: Tor Lattimore (@LattimoreTor), DeepMind. What can continuous-time diffusions teach us about RL, ML, and adaptive experimentation? Tor will explore this at AAE through sequential design and policy gradients for stochastic bandits.
Advances on Adaptive Experimentation Workshop tweet media
English
1
4
6
756
Houssam Zenati
Houssam Zenati@HoussamZenati·
DR-ME finds where distributions differ, stays calibrated under confounding, and detects effects missed by averages. We use doubly robust kernel scores, finite-location canonical-gradient covariance normalization, and held-out testing for valid p-values, interpretable evidence.
English
0
0
1
179
Houssam Zenati
Houssam Zenati@HoussamZenati·
New preprint with @ArthurGretton 📄 Most causal tests ask: did the mean change? 📊 Global kernel tests ask: did the distribution change? 🌐 We ask: did the distribution change, and where? 📍 arxiv.org/pdf/2605.08034
Houssam Zenati tweet media
English
1
4
13
5.6K
Houssam Zenati
Houssam Zenati@HoussamZenati·
Join us and apply for this workshop at @GatsbyUCL this summer, June 18th-19th to talk about adaptive experimentation in London with an amazing line of speakers!! 🚀🚀🚀
Advances on Adaptive Experimentation Workshop@aaeworkshop

🚀 Excited to announce the Advances in Adaptive Experimentation (AAE) Workshop! 📅 June 18–19 🔗 aae-workshop.github.io/info/ Join us at @GatsbyUCL in London for two days at the frontier of causal inference 🧩, adaptive experiments 🔁, and bandits/RL 🤖!

English
0
3
3
511
Houssam Zenati retweetledi
Christophe Boutry
Christophe Boutry@Ced_haurus·
Palantir vient de publier son manifeste. Lisez-le. Pas pour ce qu'il dit sur la tech. Pour ce qu'il dit sur le politique. Sur l'idéologie de Karp et Thiel. Sur la guerre. Sur vous. Quand une entreprise privée se donne pour mission de définir qui doit être surveillé, ciblé, prédit, neutralisé, et qu'elle publie simultanément un texte expliquant pourquoi contester cela serait de la faiblesse civilisationnelle, on n'est plus dans la stratégie d'entreprise. On est dans la privatisation du souverain. Le droit de décider de l'ennemi, qui fut toujours le geste politique fondateur des États, est en train d'être racheté par une entreprise cotée au Nasdaq. Ce manifeste repose sur un seul tour de passe-passe, répété sous vingt formes différentes : rendre l'inévitable ce qui est en réalité un choix. Les armes à IA ? Elles seront construites de toute façon, alors autant que ce soit nous. La surveillance algorithmique ? La réalité géopolitique l'exige. Le réarmement de l'Occident, la hiérarchie des cultures, la disqualification du pluralisme comme naïveté dangereuse ? Simple lucidité face au monde tel qu'il est. C'est le geste idéologique par excellence : ne pas interdire la question, mais la rendre indécente. Ce que Palantir appelle réalisme est en fait une décision philosophique radicale : le conflit est la vérité permanente du monde, la délibération démocratique est une fragilité que l'adversaire exploitera, et une élite technologique privée est mieux placée qu'un peuple pour tirer les conséquences de cette vérité. C'est du schmittisme en hoodie. C'est littéralement la structure de leur pensée. Le danger n'est pas qu'ils soient fous. Le danger est qu'ils soient riches, cohérents, et déjà à l'intérieur des États. Palantir ne frappe pas à la porte des gouvernements pour vendre un outil. Elle arrive avec une cosmologie complète : voici comment fonctionne le monde, voici vos ennemis, voici pourquoi vous ne pouvez pas vous permettre de débattre, et voici notre contrat. Palantir est l'ennemie des peuples et de la démocratie. Ce qu'ils construisent, c'est un pouvoir technocratique que personne n'a élu et que personne ne pourra destituer.
Palantir@PalantirTech

Because we get asked a lot. The Technological Republic, in brief. 1. Silicon Valley owes a moral debt to the country that made its rise possible. The engineering elite of Silicon Valley has an affirmative obligation to participate in the defense of the nation. 2. We must rebel against the tyranny of the apps. Is the iPhone our greatest creative if not crowning achievement as a civilization? The object has changed our lives, but it may also now be limiting and constraining our sense of the possible. 3. Free email is not enough. The decadence of a culture or civilization, and indeed its ruling class, will be forgiven only if that culture is capable of delivering economic growth and security for the public. 4. The limits of soft power, of soaring rhetoric alone, have been exposed. The ability of free and democratic societies to prevail requires something more than moral appeal. It requires hard power, and hard power in this century will be built on software. 5. The question is not whether A.I. weapons will be built; it is who will build them and for what purpose. Our adversaries will not pause to indulge in theatrical debates about the merits of developing technologies with critical military and national security applications. They will proceed. 6. National service should be a universal duty. We should, as a society, seriously consider moving away from an all-volunteer force and only fight the next war if everyone shares in the risk and the cost. 7. If a U.S. Marine asks for a better rifle, we should build it; and the same goes for software. We should as a country be capable of continuing a debate about the appropriateness of military action abroad while remaining unflinching in our commitment to those we have asked to step into harm’s way. 8. Public servants need not be our priests. Any business that compensated its employees in the way that the federal government compensates public servants would struggle to survive. 9. We should show far more grace towards those who have subjected themselves to public life. The eradication of any space for forgiveness—a jettisoning of any tolerance for the complexities and contradictions of the human psyche—may leave us with a cast of characters at the helm we will grow to regret. 10. The psychologization of modern politics is leading us astray. Those who look to the political arena to nourish their soul and sense of self, who rely too heavily on their internal life finding expression in people they may never meet, will be left disappointed. 11. Our society has grown too eager to hasten, and is often gleeful at, the demise of its enemies. The vanquishing of an opponent is a moment to pause, not rejoice. 12. The atomic age is ending. One age of deterrence, the atomic age, is ending, and a new era of deterrence built on A.I. is set to begin. 13. No other country in the history of the world has advanced progressive values more than this one. The United States is far from perfect. But it is easy to forget how much more opportunity exists in this country for those who are not hereditary elites than in any other nation on the planet. 14. American power has made possible an extraordinarily long peace. Too many have forgotten or perhaps take for granted that nearly a century of some version of peace has prevailed in the world without a great power military conflict. At least three generations — billions of people and their children and now grandchildren — have never known a world war. 15. The postwar neutering of Germany and Japan must be undone. The defanging of Germany was an overcorrection for which Europe is now paying a heavy price. A similar and highly theatrical commitment to Japanese pacifism will, if maintained, also threaten to shift the balance of power in Asia. 16. We should applaud those who attempt to build where the market has failed to act. The culture almost snickers at Musk’s interest in grand narrative, as if billionaires ought to simply stay in their lane of enriching themselves . . . . Any curiosity or genuine interest in the value of what he has created is essentially dismissed, or perhaps lurks from beneath a thinly veiled scorn. 17. Silicon Valley must play a role in addressing violent crime. Many politicians across the United States have essentially shrugged when it comes to violent crime, abandoning any serious efforts to address the problem or take on any risk with their constituencies or donors in coming up with solutions and experiments in what should be a desperate bid to save lives. 18. The ruthless exposure of the private lives of public figures drives far too much talent away from government service. The public arena—and the shallow and petty assaults against those who dare to do something other than enrich themselves—has become so unforgiving that the republic is left with a significant roster of ineffectual, empty vessels whose ambition one would forgive if there were any genuine belief structure lurking within. 19. The caution in public life that we unwittingly encourage is corrosive. Those who say nothing wrong often say nothing much at all. 20. The pervasive intolerance of religious belief in certain circles must be resisted. The elite’s intolerance of religious belief is perhaps one of the most telling signs that its political project constitutes a less open intellectual movement than many within it would claim. 21. Some cultures have produced vital advances; others remain dysfunctional and regressive. All cultures are now equal. Criticism and value judgments are forbidden. Yet this new dogma glosses over the fact that certain cultures and indeed subcultures . . . have produced wonders. Others have proven middling, and worse, regressive and harmful. 22. We must resist the shallow temptation of a vacant and hollow pluralism. We, in America and more broadly the West, have for the past half century resisted defining national cultures in the name of inclusivity. But inclusion into what? Excerpts from the #1 New York Times Bestseller The Technological Republic: Hard Power, Soft Belief, and the Future of the West, by Alexander C. Karp & Nicholas W. Zamiska techrepublicbook.com

Français
440
10.2K
25.3K
3M
Houssam Zenati retweetledi
Arthur Gretton
Arthur Gretton@ArthurGretton·
Excited to be speaking at CLeaR 2026 on Monday 05 April, on Proxy Variables for Causal Effect Estimation with Hidden Confounding. I’ll cover treatment bridges, outcome bridges, and a doubly robust method combining both. cclear.cc/2026 Slides to follow!
English
1
4
33
2.3K
Houssam Zenati
Houssam Zenati@HoussamZenati·
@flymepegasus Everyone involved in this case, please beware of the fake account @complaints81307 that will ask you for personal information and try to scam you. This is serious. I can DM screenshots for proof if needed.
English
2
0
0
267
Pegasus Airlines
Pegasus Airlines@flymepegasus·
Dear Guests, Due to restrictions regarding the airspace in the Middle East; Our flights to Iran, Iraq, Jordan and Lebanon have been cancelled until 2 March 2026 (inclusive). Our flights scheduled for 28 February 2026 to the United Arab Emirates, Kuwait, Oman, Pakistan, Qatar, Bahrain and Riyadh have been cancelled. Developments regarding the airspace are being closely monitored and additional flight cancellations may occur. You can access the latest information regarding your flight via our website and mobile application. flypgs.com/en/press-room/…
English
48
3
14
13.7K
Houssam Zenati
Houssam Zenati@HoussamZenati·
This morning at 11am!
English
0
0
0
149
Houssam Zenati
Houssam Zenati@HoussamZenati·
If you are at #AISTATS2025 and are interested in causal inference, doubly robust methods, come and see my poster! 📄 Double Debiased Machine Learning for Mediation Analysis with Continuous Treatments 📷 Hall A-E 102 Joint work with J. Abecassis, J. Josse, B. Thirion
English
0
0
3
306
Houssam Zenati retweetledi
Julien Zhou
Julien Zhou@jlnzhou·
Glad to announce that my first paper got accepted to #NeurIPS24 ! Yay! "Towards Efficient and Optimal Covariance-Adaptive Algorithms for Combinatorial Semi-Bandits" (arxiv.org/abs/2402.15171) 1/4
English
8
14
108
13.5K
Houssam Zenati
Houssam Zenati@HoussamZenati·
@neu_rips Will there be a zoom link? Very much interested in this talk!!!
English
1
0
1
173
Gergely Neu
Gergely Neu@neu_rips·
people of London: i'll be giving a talk about this paper next monday (01/15) at UCL. details: "1.30pm in the Ground Floor Seminar Room of 25 Howland Street, London, W1T 4JG" come say hi!
Gergely Neu@neu_rips

importance-weighted estimators are a key tool in off-policy learning. they are known to have crazy heavy tails which can make them unreliable for policy optimization. in a new paper w/ @germanodev & @papinimat we address this issue with a simple trick. arxiv.org/abs/2309.15771 1/n

English
2
3
36
7.6K