Tootfinder

IFDECORATOR: Wrapping Instruction Following Reinforcement Learning with Verifiable Rewards
Xu Guo, Tianyi Liang, Tong Jian, Xiaogui Yang, Ling-I Wu, Chenhui Li, Zhihui Lu, Qipeng Guo, Kai Chen
https://arxiv.org/abs/2508.04632

IFDECORATOR: Wrapping Instruction Following Reinforcement Learning with Verifiable Rewards
Reinforcement Learning with Verifiable Rewards (RLVR) improves instruction following capabilities of large language models (LLMs), but suffers from training inefficiency due to inadequate difficulty assessment. Moreover, RLVR is prone to over-optimization, where LLMs exploit verification shortcuts without aligning to the actual intent of user instructions. We introduce Instruction Following Decorator (IFDecorator}, a framework that wraps RLVR training into a robust and sample-efficient pipeline…

Growth of generalized greatest common divisors along orbits of self-rational maps on projective varieties
Yohsuke Matsuzawa
https://arxiv.org/abs/2507.05027

Growth of generalized greatest common divisors along orbits of self-rational maps on projective varieties
Consider a dominant rational self-map $f$ on a smooth projective variety $X$ defined over $\overline{\mathbb{Q}}$. We prove that \begin{align} \lim_{n \to \infty} \frac{h_{Y}(f^{n}(x))}{h_{H}(f^{n}(x)) } = 0, \end{align} where $h_{Y}$ is a height associated with a closed subscheme $Y \subset X$ of codimension $c$, $h_{H}$ is any ample height on $X$, and $x \in X(\overline{\mathbb{Q}})$ is a point with well-defined orbit, under the following assumptions: (1) either $f$ is a morphism, or $Y$ is p…

Non-convergence of the principal eigenvalue of elliptic operators for large advection
Xueli Bai, Zhi-An Wang, Xin Xu, Kexin Zhang, Maolin Zhou
https://arxiv.org/abs/2507.04418

Non-convergence of the principal eigenvalue of elliptic operators for large advection
This paper investigates the limit of the principal eigenvalue $λ(s)$ as $s\to+\infty$ for the following elliptic equation \begin{align*} -Δφ(x)-2s\mathbf{v}\cdot\nablaφ(x)+c(x)φ(x)=λ(s)φ(x), \quad x\in Ω \end{align*} in a bounded domain $Ω\subset \mathbb{R}^d (d\geq 1)$ with the Neumann boundary condition. Previous studies have shown that under certain conditions on $\mathbf{v}$, $λ(s)$ converges as $s\to\infty$ (including cases where $\lim\limits_{s \to\infty }λ(s)=\pm\infty$). …

Infrastructuring Contestability: A Framework for Community-Defined AI Value Pluralism
Andreas Mayer
https://arxiv.org/abs/2507.05187 https://

Infrastructuring Contestability: A Framework for Community-Defined AI Value Pluralism
The proliferation of AI-driven systems presents a fundamental challenge to Human-Computer Interaction (HCI) and Computer-Supported Cooperative Work (CSCW), often diminishing user agency and failing to account for value pluralism. Current approaches to value alignment, which rely on centralized, top-down definitions, lack the mechanisms for meaningful contestability. This leaves users and communities unable to challenge or shape the values embedded in the systems that govern their digital lives,…

Leaked documents: Meta is training custom AI chatbots to message users unprompted, following up on past chats to boost engagement on its AI Studio platform (Business Insider)
https://www.businessinsider.com/meta-ai-studio-…

Leaked docs show Meta training custom AI chatbots to be more proactive
Leaked guidelines show how Meta's custom AI chatbots are trained to get more proactive, following up with users to increase retention.

An information metric for comparing and assessing informative interim decisions in sequential clinical trials
G. Caruso, W. F. Rosenberger, P. Mozgunov, N. Flournoy
https://arxiv.org/abs/2509.04904

An information metric for comparing and assessing informative interim decisions in sequential clinical trials
Group sequential designs enable interim analyses and potential early stopping for efficacy or futility. While these adaptations improve trial efficiency and ethical considerations, they also introduce bias into the adapted analyses. We demonstrate how failing to account for informative interim decisions in the analysis can substantially affect posterior estimates of the treatment effect, often resulting in overly optimistic credible intervals aligned with the stopping decision. Drawing on infor…

#GiffordFire
Today is expected to be another active day,
particularly as the fire aligns with topographical features
along grass and brush-covered hillsides.
The main priorities for today include improving containment
lines on the northern flank to prevent the fire from progressing toward the Manchaca Wilderness,
continuing efforts in Cuyama Valley to keep the fire on…

Watch Duty - Wildfire Maps & Alerts
Real-time information about wildfire and firefighting efforts nearby

Stability analysis of thermodiffusively unstable counterflow lean premixed hydrogen flames
Alessandro Porcarelli, Pasquale Eduardo Lapenna, Francesco Creta, Ivan Langella
https://arxiv.org/abs/2509.04197

Stability analysis of thermodiffusively unstable counterflow lean premixed hydrogen flames
This study investigates the effect of increasing strain rate on thermodiffusively unstable, lean premixed hydrogen flames in a 2D counterflow configuration through detailed-chemistry numerical simulations for the first time. The analysis of transient flame dynamics without imposed perturbations reveals that a steady-state flame front is achieved only when the strain rate exceeds a certain threshold. Below this threshold, the flame exhibits unstable oscillatory behavior. When subjected to a rang…

The F1 movie gives Apple its first box office hit, opening to $144M worldwide and $55.6M in the US; it was pushed on Apple Music, Podcasts, Fitness , and Wallet (Anthony D'Alessandro/Deadline)
https://deadline.com/2025/06/box-office-f1-megan-2-0-1236444277/

‘F1’ Zooms To $10M Previews, An Apple Original Films Record; ‘M3GAN 2.0’ $1.5M – Friday AM Box Office
F1' the Brad Pitt Apple Original Films is expected to deliver an opening north of $40M-$50M while Universal/Blumhouse's 'M3GAN 2.0' is expected to crash. Previews of $10M were a record for Apple Original Films.

The F1 movie gives Apple its first box office hit, opening to $144M worldwide and $55.6M in the US; it was pushed on Apple Music, Podcasts, Fitness , and Wallet (Anthony D'Alessandro/Deadline)
https://deadline.com/2025/06/box-office-f1-megan-2-0-1236444277/

‘F1’ Zooms To $10M Previews, An Apple Original Films Record; ‘M3GAN 2.0’ $1.5M – Friday AM Box Office
F1' the Brad Pitt Apple Original Films is expected to deliver an opening north of $40M-$50M while Universal/Blumhouse's 'M3GAN 2.0' is expected to crash. Previews of $10M were a record for Apple Original Films.