Tootfinder

There was a time in the not-so-distant past when we could have avoided incredible harm to incredible numbers of people here in the US simply by giving the absolute stink eye to people spouting deranged fascist crap, by saying “ugh, wtf, get out of here” instead of finding ways to describe fascism politely enough to give it equal time in the news.
I don’t know what’s coming. I hope for the best; I fear the worst. But shunning and shaming sound so, so, so much better than even the best-case scenarios that follow from here.

Simplified Quantum Weight Reduction with Optimal Bounds
Min-Hsiu Hsieh, Xingjian Li, Ting-Chun Lin
https://arxiv.org/abs/2510.09601 https://arxiv.org/pdf/2…

Simplified Quantum Weight Reduction with Optimal Bounds
Quantum weight reduction is the task of transforming a quantum code with large check weight into one with small check weight. Low-weight codes are essential for implementing quantum error correction on physical hardware, since high-weight measurements cannot be executed reliably. Weight reduction also serves as a critical theoretical tool, which may be relevant to the quantum PCP conjecture. We introduce a new procedure for quantum weight reduction that combines geometric insights with coning…

Secret-Key Agreement Through Hidden Markov Modeling of Wavelet Scattering Embeddings
Nora Basha, Bechir Hamdaoui, Attila A. Yavuz, Thang Hoang, Mehran Mozaffari Kermani
https://arxiv.org/abs/2510.09773

Secret-Key Agreement Through Hidden Markov Modeling of Wavelet Scattering Embeddings
Secret-key generation and agreement based on wireless channel reciprocity offers a promising avenue for securing IoT networks. However, existing approaches predominantly rely on the similarity of instantaneous channel measurement samples between communicating devices. This narrow view of reciprocity is often impractical, as it is highly susceptible to noise, asynchronous sampling, channel fading, and other system-level imperfections -- all of which significantly impair key generation performanc…

List Decoding Reed--Solomon Codes in the Lee, Euclidean, and Other Metrics
Chris Peikert, Alexandra Veliche Hostetler
https://arxiv.org/abs/2510.11453 https://

List Decoding Reed--Solomon Codes in the Lee, Euclidean, and Other Metrics
Reed--Solomon error-correcting codes are ubiquitous across computer science and information theory, with applications in cryptography, computational complexity, communication and storage systems, and more. Most works on efficient error correction for these codes, like the celebrated Berlekamp--Welch unique decoder and the (Guruswami--)Sudan list decoders, are focused on measuring error in the Hamming metric, which simply counts the number of corrupted codeword symbols. However, for some applica…

I refuse to replace capitalist hierarchies with red-tinted authoritarianism, because in the end, I want liberation, not another power structure draped in red with the hammer and sickle.
#Authoritarianism #Anarchism

Deformation quantisation of exact shifted symplectic structures, with an application to vanishing cycles
J. P. Pridham
https://arxiv.org/abs/2511.07602 https://arxiv.org/pdf/2511.07602 https://arxiv.org/html/2511.07602
arXiv:2511.07602v1 Announce Type: new
Abstract: We extend the author's and CPTVV's correspondence between shifted symplectic and Poisson structures to establish a correspondence between exact shifted symplectic structures and non-degenerate shifted Poisson structures with formal derivation, a concept generalising constructions by De Wilde and Lecomte. Our formulation is sufficiently general to encompass derived algebraic, analytic and $\mathcal{C}^{\infty}$ stacks, as well as Lagrangians and non-commutative generalisations. We also show that non-degenerate shifted Poisson structures with formal derivation carry unique self-dual deformation quantisations in any setting where the latter can be formulated.
One application is that for (not necessarily exact) $0$-shifted symplectic structures in analytic and $\mathcal{C}^{\infty}$ settings, it follows that the author's earlier parametrisations of quantisations are in fact independent of any choice of associator, and generalise Fedosov's parametrisation of quantisations for classical manifolds.
Our main application is to complex $(-1)$-shifted symplectic structures, showing that our unique quantisation of the canonical exact structure, a sheaf of twisted $BD_0$-algebras with derivation, gives rise to BBDJS's perverse sheaf of vanishing cycles, equipped with its monodromy operator.
toXiv_bot_toot

DCP: Addressing Input Dynamism In Long-Context Training via Dynamic Context Parallelism
Chenyu Jiang, Zhenkun Cai, Ye Tian, Zhen Jia, Yida Wang, Chuan Wu
https://arxiv.org/abs/2510.10620

DCP: Addressing Input Dynamism In Long-Context Training via Dynamic Context Parallelism
Context parallelism has emerged as a key technique to support long-context training, a growing trend in generative AI for modern large models. However, existing context parallel methods rely on static parallelization configurations that overlook the dynamic nature of training data, specifically, the variability in sequence lengths and token relationships (i.e., attention patterns) across samples. As a result, these methods often suffer from unnecessary communication overhead and imbalanced comp…

Spectropolarimetric Inversion in Four Dimensions with Deep Learning (SPIn4D): II. A Physics-Informed Machine Learning Method for 3D Solar Photosphere Reconstruction
Kai E. Yang, Xudong Sun, Lucas A. Tarr, Jiayi Liu, Peter Sadowski, S. Curt Dodds, Matthias Rempel, Sarah A. Jaeggli, Thomas A. Schad, Ian Cunnyngham, Yannik Glaser, Linnea Wolniewicz
https://…

Spectropolarimetric Inversion in Four Dimensions with Deep Learning (SPIn4D): II. A Physics-Informed Machine Learning Method for 3D Solar Photosphere Reconstruction
Inferring the three-dimensional (3D) solar atmospheric structures from observations is a critical task for advancing our understanding of the magnetic fields and electric currents that drive solar activity. In this work, we introduce a novel, Physics-Informed Machine Learning method to reconstruct the 3D structure of the lower solar atmosphere based on the output of optical depth sampled spectropolarimetric inversions, wherein both the fully disambiguated vector magnetic fields and the geometri…

La langue française est parfois si belle. Sur franceinfo: "Une affirmation répétée Š l'envi mais dont la crédibilité semble mise Š rude épreuve." C'est une phrase clé qui reflète la pratique de communication actuelle des entreprises et des politiques. Même en prison, Sarko nie encore.

ENQUETE. Scandale des eaux Perrier : Nestlé mis en demeure après une pollution, la production à l’arrêt
Les autorités adressent à la firme une mise en demeure après un épisode de pollution lié à l’usage de produits chimiques dans l’usine de Vergèze dans le Gard, après la découverte de bactéries. Avec des rejets dépassant trois fois les normes, la procédure pourrait conduire à suspendre l’exploitation.

Cable company Altice changes its name to Optimum Communications and will change its NYSE ticker symbol to OPTU on November 19 (Alex Weprin/The Hollywood Reporter)
https://www.hollywoodreporter.com/business/business-news/altic…

Altice Changes Corporate Name to Optimum Communications
The cable company (which was once called Cablevision) will begin trading under the ticket OPTU later this month.