Tootfinder

At least 2/3 of Americans aren’t daily coffee drinkers. ☕️
Wait, they are.
Well, at least hundreds of millions of American coffee drinkers don’t drink an average of 3 cups a day.
Wait, they do.
Folks, these are #TrumpTariffs, taking money from the American people.
via @…

CLF-RL: Control Lyapunov Function Guided Reinforcement Learning
Kejun Li, Zachary Olkin, Yisong Yue, Aaron D. Ames
https://arxiv.org/abs/2508.09354 https://

CLF-RL: Control Lyapunov Function Guided Reinforcement Learning
Reinforcement learning (RL) has shown promise in generating robust locomotion policies for bipedal robots, but often suffers from tedious reward design and sensitivity to poorly shaped objectives. In this work, we propose a structured reward shaping framework that leverages model-based trajectory generation and control Lyapunov functions (CLFs) to guide policy learning. We explore two model-based planners for generating reference trajectories: a reduced-order linear inverted pendulum (LIP) mode…

This morning I fashioned a belt from an INOP dashcam cigarette lighter adapter cord and a swiss army knife, so thats how my day is going.

Este nuevo prisma sobre la #IA no lo habíamos contemplado aún: el consumo de energía es tan alto que estš afectando en una subida de precios para todos los consumidores. Y ya sabemos que la subida de la luz repercute en la subida de todos los demšs precios.
Enhorabuena a los genios.
Edito para meter enlace

Systematic Biases from ARM-Based Sensitivity and Imaging in Compton Cameras
Tomonori Ikeda, Tatsuya Sawano, Naomi Tsuji, Yoshitaka Mizumura
https://arxiv.org/abs/2506.18659

Systematic Biases from ARM-Based Sensitivity and Imaging in Compton Cameras
The angular resolution measure (ARM) is widely used in Compton camera analyses to characterize angular uncertainty and to define event selection criteria. However, the ARM distribution is fundamentally different from the point spread function (PSF), which represents the true spatial imaging response of the system on the celestial sphere. In this study, motivated by applications in gamma-ray astrophysics, we investigated the consequences of using ARM-based definitions in sensitivity estimation a…