Tootfinder

This https://arxiv.org/abs/2505.00546 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csLG_…

Directly Forecasting Belief for Reinforcement Learning with Delays
Reinforcement learning (RL) with delays is challenging as sensory perceptions lag behind the actual events: the RL agent needs to estimate the real state of its environment based on past observations. State-of-the-art (SOTA) methods typically employ recursive, step-by-step forecasting of states. This can cause the accumulation of compounding errors. To tackle this problem, our novel belief estimation method, named Directly Forecasting Belief Transformer (DFBT), directly forecasts states from ob…

Improving choice model specification using reinforcement learning
Gabriel Nova, Sander van Cranenburgh, Stephane Hess
https://arxiv.org/abs/2506.06410 http…

Improving choice model specification using reinforcement learning
Discrete choice modelling is a theory-driven modelling framework for understanding and forecasting choice behaviour. To obtain behavioural insights, modellers test several competing model specifications in their attempts to discover the 'true' data generation process. This trial-and-error process requires expertise, is time-consuming, and relies on subjective theoretical assumptions. Although metaheuristics have been proposed to assist choice modellers, they treat model specification as a class…

Et ça continue https://www.lemonde.fr/international/article/2025/05/31/a-rome-des-milliers-de-personnes-manifestent-contre-la-loi-sur-…

A Rome, des milliers de personnes manifestent contre la loi sur la sécurité du gouvernement ultraconservateur de Giorgia Meloni
Ce décret-loi, adopté début avril par le gouvernement et voté jeudi par la Chambre des députés, protège notamment les forces de l’ordre en cas d’accusations de violences policières, et renforce les peines pour certains délits.

On Universal Deformations of Compressible Cauchy Elastic Solids Reinforced by Inextensible Fibers
Arash Yavari
https://arxiv.org/abs/2506.11203 https://

On Universal Deformations of Compressible Cauchy Elastic Solids Reinforced by Inextensible Fibers
Universal deformations are those that can be maintained in the absence of body forces and by applying only boundary tractions, for all materials within a given constitutive class. We study the universal deformations of compressible isotropic Cauchy elastic solids reinforced by a single family of inextensible fibers. We consider straight fibers parallel to the Cartesian Z-axis in the reference configuration and derive the universality constraints. The principal invariants of the right Cauchy-Gre…