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“on a besoin d’un candidat qui dise au Conseil d’Etat qu’il fait fausse route. C’est un mensonge de répéter qu’on peut baisser les impôts tout en maintenant les prestations. Et Christelle Luisier se trompe en disant que le canton n’a pas de problème de recettes: on a besoin d’une réponse quant aux millions perdus du bouclier fiscal et on a besoin d’un système de solidarité financière”
https://www.letemps.ch/suisse/vaud/vaud-canton-recherche-ministre-bonne-resistance-au-stress-pour-ramener-le-calme?shouldPreventPurchase=true&inAppView=3.19.0&didomiConfig.user.externalConsent.value={"purposes":{"consent":{"enabled":["abtesting-p6FL2BYL","audiencem-hJxaeGrR","cookies","create_ads_profile","create_content_profile","device_characteristics","geolocation_data","improve_products","market_research","measure_ad_performance","measure_content_performance","parselyne-Ya2EC4dG","select_basic_ads","select_personalized_ads","select_personalized_content","use_limited_data_to_select_content"],"disabled":[]},"legitimate_interest":{"enabled":[],"disabled":[]}},"vendors":{"consent":{"enabled":["amazon","c:aws-cloudfront","c:bannerwise-EeHwBjLT","c:chartbeat","c:cloudflare","c:echobox-GqD96L9K","c:forecast-ZRJPAUT7","c:googleana-4TXnJigR","c:hotjar","c:jsdelivr-xdD77X6w","c:jw-player","c:kameleoon-experiment","c:kameleoon-personalization","c:keycdn","c:linkedin","c:magnitein-ePEpbCQ7","c:meta-43HDmFRa","c:microsoft","c:nonli-jnWf8kqD","c:pianohybr-R3VKC2r4","c:pinterest","c:spyri-XAtBPx3i","c:tapadinc-VDTUUcKw","c:tiktok-KZAUQLZ9","c:unrulygro-nKyLqdKi","c:youtube","facebook","google","twitter",1,10,1020,1021,1028,1046,1069,108,109,11,1126,12,120,1269,128,13,130,131,1310,132,136,137,138,142,143,1449,154,156,16,164,202,209,21,211,23,238,24,241,243,25,253,264,28,284,290,30,301,32,36,39,4,412,422,45,469,475,493,50,519,52,559,58,61,612,617,68,684,69,73,76,77,783,790,793,80,81,811,84,85,855,898,91,92,95,965,98],"disabled":[]},"legitimate_interest":{"enabled":[],"disabled":[]}},"user_id":"36B03261-8BC8-4FB4-A026-0543FF748710","created":"2025-05-28T08:36:56.058Z","updated":"2025-11-08T21:05:15.048Z","source":{"type":"app","domain":"ch.letemps.LT"},"action":"webview"}

Convergence Guarantees for Federated SARSA with Local Training and Heterogeneous Agents
Paul Mangold, Elo\"ise Berthier, Eric Moulines
https://arxiv.org/abs/2512.17688 https://arxiv.org/pdf/2512.17688 https://arxiv.org/html/2512.17688
arXiv:2512.17688v1 Announce Type: new
Abstract: We present a novel theoretical analysis of Federated SARSA (FedSARSA) with linear function approximation and local training. We establish convergence guarantees for FedSARSA in the presence of heterogeneity, both in local transitions and rewards, providing the first sample and communication complexity bounds in this setting. At the core of our analysis is a new, exact multi-step error expansion for single-agent SARSA, which is of independent interest. Our analysis precisely quantifies the impact of heterogeneity, demonstrating the convergence of FedSARSA with multiple local updates. Crucially, we show that FedSARSA achieves linear speed-up with respect to the number of agents, up to higher-order terms due to Markovian sampling. Numerical experiments support our theoretical findings.
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Improved Dark Photon Sensitivity from the Dark SRF Experiment
Saarik Kalia, Zhen Liu, Bianca Giaccone, Oleksandr Melnychuk, Roman Pilipenko, Asher Berlin, Anson Hook, Sergey Belomestnykh, Crispin Contreras-Martinez, Daniil Frolov, Timergali Khabiboulline, Yuriy Pischalnikov, Sam Posen, Oleg Pronitchev, Vyacheslav Yakovlev, Anna Grassellino, Roni Harnik, Alexander Romanenko

Improved Dark Photon Sensitivity from the Dark SRF Experiment
We report the refined dark-photon exclusion bound from Dark SRF's pathfinder run. Our new result is driven by improved theoretical modeling of frequency instability in high-quality resonant experiments. Our analysis leads to a constraint that is an order of magnitude stronger than previously reported (corresponding to a signal-to-noise ratio that is four orders of magnitude larger). This result represents the world-leading constraint on non-dark-matter dark photons over a wide range of masses b…

Generative AI and Firm Productivity: Field Experiments in Online Retail
Lu Fang, Zhe Yuan, Kaifu Zhang, Dante Donati, Miklos Sarvary
https://arxiv.org/abs/2510.12049 https://

Generative AI and Firm Productivity: Field Experiments in Online Retail
We quantify the impact of Generative Artificial Intelligence (GenAI) on firm productivity through a series of large-scale randomized field experiments involving millions of users and products at a leading cross-border online retail platform. Over six months in 2023-2024, GenAI-based enhancements were integrated into seven consumer-facing business workflows. We find that GenAI adoption significantly increases sales, with treatment effects ranging from 0\% to 16.3\%, depending on GenAI's marginal…

Increase in packing density during multi-layer powder spreading: An experimental and numerical study
Olivier Gaboriault, Anatolie Timercan, Roger Pelletier, Louis-Philippe Lefebvre, David Melancon, Bruno Blais
https://arxiv.org/abs/2509.26402

Increase in packing density during multi-layer powder spreading: An experimental and numerical study
A custom apparatus designed to isolate and replicate the spreading process of metal powder in additive manufacturing demonstrates a sudden and unexplained increase in packing density beyond layers 5 to 10. We replicate the experiments that lead to densification with the discrete element method (DEM) using \lethe{}, an open-source software framework. We show that large-scale multi-layer DEM simulations are able to reproduce the densification observed experimentally. Using the Lagrangian simulati…

Good Morning #Canada
Canadians should reflect back on the glorious past few weeks and the excitement provided by the Toronto #BlueJays. A team not expected to contend for any title when the season began, they surprised the experts, the fans, and the teams that stood in their way. Some Canadians had flashbacks to previous World's Series Championships, some younger fans built their own memories, and millions jumped on board the bandwagon. We celebrated every pitch, every swing of the bat, every win that brought us closer to a championship, and each other. If you can't change the situation you're in - or the final score in a game 7 - you can always change your perspective. Don't be sad for our Blue Jays. Remember the joy they brought us individually and collectively.
#CanadaIsAwesome #LetsGoBlueJays
https://youtu.be/ENBX_v1Po1Y?si=lSY-cNmBiNozxOvM