Tootfinder

President Emmanuel Macron says France will ban social media access for children under 15 within "a few months" if it is not done at the European level (Gavin Blackburn/Euronews)
https://www.euronews.com/my-europe/2025/06…

Macron says France will ban social media for under-15s if EU does not
Macron's pledge comes after a 14-year-old pupil fatally stabbed a staff member during a routine bag check at a school in eastern France. #EuropeNews

Xbox Ally: Asus und Microsoft bauen zwei Windows-Handhelds
Microsoft hat erste Handhelds mit Xbox-Branding vorgestellt: Beide Modelle kommen mit einer neuen Oberfläche, die sparsamer als Standard-Windows sein soll.

Ah damn, Sly Stone has died. Late 20th-century American music would've been a very different thing without him.
Sly and the Family Stone, "Stand!" (live 1974)
#RIP

This https://arxiv.org/abs/2308.07851 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

An imperceptible connection between the Clebsch--Gordan coefficients of $U_q(\mathfrak{sl}_2)$ and the Terwilliger algebras of Grassmann graphs
The Clebsch--Gordan coefficients of $U(\mathfrak{sl}_2)$ are expressible in terms of Hahn polynomials. The phenomenon can be explained by an algebra homomorphism $\natural$ from the universal Hahn algebra $\mathcal H$ into $U(\mathfrak{sl}_2)\otimes U(\mathfrak{sl}_2)$. Let $Ω$ denote a finite set of size $D$ and $2^Ω$ denote the power set of $Ω$. It is generally known that $\mathbb C^{2^Ω}$ supports a $U(\mathfrak{sl}_2)$-module. Let $k$ denote an integer with $0\leq k\leq D$ and fix a $k$…

Movie Facts and Fibs (MF$^2$): A Benchmark for Long Movie Understanding
Emmanouil Zaranis, Ant\'onio Farinhas, Saul Santos, Beatriz Canaverde, Miguel Moura Ramos, Aditya K Surikuchi, Andr\'e Viveiros, Baohao Liao, Elena Bueno-Benito, Nithin Sivakumaran, Pavlo Vasylenko, Shoubin Yu, Sonal Sannigrahi, Wafaa Mohammed, Ben Peters, Danae S\'anchez Villegas, Elias Stengel-Eskin, Giuseppe Attanasio, Jaehong Yoon, Stella Frank, Alessandro Suglia, Chrysoula Zerva, Desmond Elliott, M…

Movie Facts and Fibs (MF$^2$): A Benchmark for Long Movie Understanding
Despite recent progress in vision-language models (VLMs), holistic understanding of long-form video content remains a significant challenge, partly due to limitations in current benchmarks. Many focus on peripheral, ``needle-in-a-haystack'' details, encouraging context-insensitive retrieval over deep comprehension. Others rely on large-scale, semi-automatically generated questions (often produced by language models themselves) that are easier for models to answer but fail to reflect genuine und…

"The real threat posed by generative AI is not that it will eliminate work on a mass scale, rendering human labour obsolete. It is that, left unchecked, it will continue to transform work in ways that deepen precarity, intensify surveillance, and widen existing inequalities."
"The current trajectory of generative AI reflects the priorities of firms seeking to lower costs, discipline workers, and consolidate profits — not any drive to enhance human flourishing. If we allo…

Is the AI Bubble About to Burst?
In the years since Automation and the Future of Work first appeared, a new wave of technological enthusiasm has swept across the popular imagination. The catalyst this time has been the rapid advances in generative artificial intelligence, spearheaded by companies like OpenAI, Google DeepMind, and Meta. Once again, a c

Properties of slow magneto-acoustic waves observed simultaneously using Hi-C 2.1 and AIA
Suraj K. Tripathy, S. Krishna Prasad, D. Banerjee
https://arxiv.org/abs/2506.06126

Properties of slow magneto-acoustic waves observed simultaneously using Hi-C 2.1 and AIA
Propagating slow magneto-acoustic waves are commonly observed in different coronal structures but are most prominent in active region fan loops. Their rapid damping with damping lengths of the order of a wavelength has been investigated in the past by several authors. Although different physical mechanisms have been proposed, significant discrepancies between the theory and observations remain. Recent high-resolution observations captured simultaneously by two different instruments reveal disti…

ICE raids appear to be giving criminals license to do whatever the f--- they want. But silly me... this has always been about Trump's racism, not law & order.
All you Trump voters are responsible for the misery of millions.
Original post: https://bsky.app/profile/did:plc:6m7rb…

The Chow Ring of the 2-Sylow Subgroup of $\mathrm{GL}(4,2)$
Alexander Ziegler
https://arxiv.org/abs/2506.06512 https://arxiv.org/pdf/…

The Chow Ring of the 2-Sylow Subgroup of $\mathrm{GL}(4,2)$
This paper provides a computation of the mod 2 Chow ring of the motivic étale classifying space of the finite group $\mathrm{Syl}_2(\mathrm{GL}(4,2))$. It outlines a general computation strategy, adapted from work by Burt Totaro, that has been largely automated by the author. This strategy can be used to compute more examples of Chow rings of motivic étale classifying spaces quickly.

This https://arxiv.org/abs/2506.05660 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCV_…

TissUnet: Improved Extracranial Tissue and Cranium Segmentation for Children through Adulthood
Extracranial tissues visible on brain magnetic resonance imaging (MRI) may hold significant value for characterizing health conditions and clinical decision-making, yet they are rarely quantified. Current tools have not been widely validated, particularly in settings of developing brains or underlying pathology. We present TissUnet, a deep learning model that segments skull bone, subcutaneous fat, and muscle from routine three-dimensional T1-weighted MRI, with or without contrast enhancement. T…