Tootfinder

Every Subtlety Counts: Fine-grained Person Independence Micro-Action Recognition via Distributionally Robust Optimization
Feng-Qi Cui, Jinyang Huang, Anyang Tong, Ziyu Jia, Jie Zhang, Zhi Liu, Dan Guo, Jianwei Lu, Meng Wang
https://arxiv.org/abs/2509.21261

Every Subtlety Counts: Fine-grained Person Independence Micro-Action Recognition via Distributionally Robust Optimization
Micro-action Recognition is vital for psychological assessment and human-computer interaction. However, existing methods often fail in real-world scenarios because inter-person variability causes the same action to manifest differently, hindering robust generalization. To address this, we propose the Person Independence Universal Micro-action Recognition Framework, which integrates Distributionally Robust Optimization principles to learn person-agnostic representations. Our framework contains t…

Reduction principles for proper actions
Leonardo Biliotti, Gustavo May Custodio, Alessandro Minuzzo
https://arxiv.org/abs/2509.19915 https://arxiv.org/pdf/…

Reduction principles for proper actions
We study the core of a proper action by a Lie group $G$ on a smooth manifold $M$, extending the construction for $G$ compact by Skjelbred and Straume. Moreover, we show that many properties of a proper $G$-action on $M$ are determined by the action of a group $G'$ on the corresponding core $_cM$. We say that such properties admit a reduction principle. In particular, we prove that a proper isometric $G$-action on $M$ is polar (resp. hyperpolar) if and only if the $G'$-action on $_cM$ is polar (…

Fundamental rights and democratic principles are being undermined by those who swore to protect them
Working families are struggling while special interests profit from corruption and chaos
America is retreating from moral leadership as global challenges demand principled action
https://www.thesaveamericamovement.org/

The Norwegian Trade Union Association, Anarcho-syndicalism in Norway!
The NSF-IAA upholds the anarcho-syndicalist tradition in Norway, rooted in the organization’s founding in 1917 and its historic commitment to the principles of direct action, federalism, and worker self-management. The NSF has been a section of the International Workers’ Association (IWA-AIT) since 1922, maintaining its place within the international anarcho-syndicalist movement.
It makes me smile to see the NS…

The Goldbach Conjecture as an Informational Economy Principle: A Heuristic Framework from Computational Physics
Ricardo Adonis Caraccioli Abrego
https://arxiv.org/abs/2508.18273

The Goldbach Conjecture as an Informational Economy Principle: A Heuristic Framework from Computational Physics
This paper presents a heuristic framework for analyzing the Goldbach Conjecture (GC) from the perspective of the physics of information. Through empirical analysis, we propose an Informational Economy Principle (IEP), which posits that differences between prime numbers tend to be resolved by pairs with a minimal sum with over- whelmingly high probability. We argue that this tendency is analogous to least-action principles in physics and is consistent with the fundamental physical limits of comp…

Assurance of Frontier AI Built for National Security
Matteo Pistillo, Charlotte Stix
https://arxiv.org/abs/2510.08792 https://arxiv.org/pdf/2510.08792

Assurance of Frontier AI Built for National Security
This memorandum presents four recommendations aimed at strengthening the principles of AI model reliability and AI model governability, as DoW, ODNI, NIST, and CAISI refine AI assurance frameworks under the AI Action Plan. Our focus concerns the open scientific problem of misalignment and its implications on AI model behavior. Specifically, misalignment and scheming capabilities can be a red flag indicating AI model insufficient reliability and governability. To address the national security th…

Boundary Actions and Loop Groups: A Geometric Picture of Gauge Symmetries at Null Infinity
Silvia Nagy, Javier Peraza, Giorgio Pizzolo
https://arxiv.org/abs/2509.08725 https://

Boundary Actions and Loop Groups: A Geometric Picture of Gauge Symmetries at Null Infinity
In previous work arXiv:2407.13556, we proposed an extended phase space structure at null infinity accommodating large gauge symmetries for sub$^n$-leading soft theorems in Yang-Mills, via dressing fields arising in the Stueckelberg procedure. Here, we give an explicit boundary action controlling the dynamics of these fields. This allows for a derivation from first principles of the associated charges, together with an explicit renormalization procedure when taking the limit to null and spatial …

Yeast growth is controlled by the proportional scaling of mRNA and ribosome concentrations
Xin Gao, Michael Lanz, Rosslyn Grosely, Jonas Cremer, Joseph Puglisi, Jan M. Skotheim
https://arxiv.org/abs/2508.14997

Yeast growth is controlled by the proportional scaling of mRNA and ribosome concentrations
Despite growth being fundamental to all aspects of cell biology, we do not yet know its organizing principles in eukaryotic cells. Classic models derived from the bacteria E. coli posit that protein-synthesis rates are set by mass-action collisions between charged tRNAs produced by metabolic enzymes and mRNA-bound ribosomes. These models show that faster growth is achieved by simultaneously raising both ribosome content and peptide elongation speed. Here, we test if these models are valid for e…