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@benb@osintua.eu
2026-01-31 15:25:46

'Russians are to blame' — Moldovans react to mass power outage after Moldova-Ukraine line malfunction: benborges.xyz/2026/01/31/russi

@xtaran@chaos.social
2026-02-27 23:12:18

Heute gab's trotz dem am Mittwoch kaputt gegangenen G-Line mehrere freudige Dinge in Sachen #Fahrrad: Hab's nach mehreren Monaten Abstinenz wegen Terminkonflikten endlich mal wieder zur #CriticalMass #Zürich

Ein Brompton-Faltrad mit eingefaltetem Hinterbau steht auf einem asphaltierten Platz. Links und rechts des Bromptons sieht man auf dem Asphalt zwei schmale rote Linien leuchten, die per Laser von einem Rücklicht an der Sattelstange dorthin projeziert werden.
Zwei Damenräder, die Seite an Seite miteinander verbunden wurden, sodass sie ein viertädiges Fahrrad für zwei Personen ergeben. In den Speichen leuchten entlang der Felgen warmweiße Lichterketten. Rundherum Leute, aber man sieht sie maximal bis zur Taille.
Blick von hinten (aus der Sicht eines Corkers) auf die vorbeirollende Critical Mass beim Irchel.
Ausklingen der Critical Mass unter der Kornhausbrücke. Einige bunt leuchtenden Musikwägelchen sind noch da, u. a. die primär blau leuchtende Konsumkamine
@seeingwithsound@mas.to
2026-01-04 09:06:06

(LinkedIn) Generative human intelligence for images anyone? linkedin.com/posts/petermeijer

@arXiv_csLG_bot@mastoxiv.page
2025-12-22 10:34:40

Weighted Stochastic Differential Equation to Implement Wasserstein-Fisher-Rao Gradient Flow
Herlock Rahimi
arxiv.org/abs/2512.17878 arxiv.org/pdf/2512.17878 arxiv.org/html/2512.17878
arXiv:2512.17878v1 Announce Type: new
Abstract: Score-based diffusion models currently constitute the state of the art in continuous generative modeling. These methods are typically formulated via overdamped or underdamped Ornstein--Uhlenbeck-type stochastic differential equations, in which sampling is driven by a combination of deterministic drift and Brownian diffusion, resulting in continuous particle trajectories in the ambient space. While such dynamics enjoy exponential convergence guarantees for strongly log-concave target distributions, it is well known that their mixing rates deteriorate exponentially in the presence of nonconvex or multimodal landscapes, such as double-well potentials. Since many practical generative modeling tasks involve highly non-log-concave target distributions, considerable recent effort has been devoted to developing sampling schemes that improve exploration beyond classical diffusion dynamics.
A promising line of work leverages tools from information geometry to augment diffusion-based samplers with controlled mass reweighting mechanisms. This perspective leads naturally to Wasserstein--Fisher--Rao (WFR) geometries, which couple transport in the sample space with vertical (reaction) dynamics on the space of probability measures. In this work, we formulate such reweighting mechanisms through the introduction of explicit correction terms and show how they can be implemented via weighted stochastic differential equations using the Feynman--Kac representation. Our study provides a preliminary but rigorous investigation of WFR-based sampling dynamics, and aims to clarify their geometric and operator-theoretic structure as a foundation for future theoretical and algorithmic developments.
toXiv_bot_toot