Tootfinder

Press Forward announces $22.7M in grants to 22 newsroom projects, after announcing $20M in grants to 205 small local newsrooms last fall (Laura Hazard Owen/Nieman Lab)
https://www.niemanlab.org/2025/07/press-forward-grants-22-7-million-to-22-newsr…

Apple seems to be working on adding CUDA support to open-source ML framework MLX, which may mean that code developed using MLX would work with CUDA (Malcolm Owen/AppleInsider)
https://appleinsider.com/articles/25/0

Apple Silicon machine learning code may become more easily portable to Nvidia hardware
A project is trying to cut the cost of making machine learning applications for Nvidia hardware, by developing on an Apple Silicon Mac and exporting it to CUDA.

Flocking as a second-order phase transition in self-aligning active crystals
Marco Musacchio, Alexander P. Antonov, Hartmut L\"owen, Lorenzo Caprini
https://arxiv.org/abs/2506.12967

Flocking as a second-order phase transition in self-aligning active crystals
We study a two-dimensional crystal composed of active units governed by self-alignment. This mechanism induces a torque that aligns a particle's orientation with its velocity and leads to a phase transition from a disordered to a flocking crystal. Here, we provide the first microscopic theory that analytically maps the crystal dynamics onto a Landau-Ginzburg model, in which the velocity-dependent effective free energy undergoes a transition from a single-well shape to a Mexican-hat profile. As …

A former OpenAI engineer details his experience working at the company, including its culture, engineering practices, rapid growth, and the launch of Codex (Calvin French-Owen)
https://calv.info/openai-reflections

Reflections on OpenAI

№ 15 Owen Carlson from Cornell at bat April 13 in a game against Penn at beautiful Booth Field
#sports #baseball #photo

On the forts and related parameters of the hypercube graph
Boris Brimkov, Thomas R. Cameron, Owen Grubbs
https://arxiv.org/abs/2507.10826 https://

On the forts and related parameters of the hypercube graph
In 2018, forts were defined as non-empty subsets of vertices in a graph where no vertex outside the set has exactly one neighbor in the set. Forts have since been used to characterize zero forcing sets, model zero forcing as an integer program, and provide lower bounds on the zero forcing number. In this article, we give a complete characterization of minimum forts in the hypercube graph, showing that they are automorphic to one of two sets. In contrast, non-automorphic minimum zero forcing set…

Kernel Learning for Mean-Variance Trading Strategies
Owen Futter, Nicola Muca Cirone, Blanka Horvath
https://arxiv.org/abs/2507.10701 https://

Kernel Learning for Mean-Variance Trading Strategies
In this article, we develop a kernel-based framework for constructing dynamic, pathdependent trading strategies under a mean-variance optimisation criterion. Building on the theoretical results of (Muca Cirone and Salvi, 2025), we parameterise trading strategies as functions in a reproducing kernel Hilbert space (RKHS), enabling a flexible and non-Markovian approach to optimal portfolio problems. We compare this with the signature-based framework of (Futter, Horvath, Wiese, 2023) and demonstrat…

Filter Equivariant Functions: A symmetric account of length-general extrapolation on lists
Owen Lewis, Neil Ghani, Andrew Dudzik, Christos Perivolaropoulos, Razvan Pascanu, Petar Veli\v{c}kovi\'c
https://arxiv.org/abs/2507.08796

Filter Equivariant Functions: A symmetric account of length-general extrapolation on lists
What should a function that extrapolates beyond known input/output examples look like? This is a tricky question to answer in general, as any function matching the outputs on those examples can in principle be a correct extrapolant. We argue that a "good" extrapolant should follow certain kinds of rules, and here we study a particularly appealing criterion for rule-following in list functions: that the function should behave predictably even when certain elements are removed. In functional prog…

Replaced article(s) found for stat.CO. https://arxiv.org/list/stat.CO/new
[1/1]:
- Error estimation for quasi-Monte Carlo
Art B. Owen
https://

Better bootstrap t confidence intervals for the mean
Art B. Owen
https://arxiv.org/abs/2508.10083 https://arxiv.org/pdf/2508.10083

Better bootstrap t confidence intervals for the mean
This article explores combinations of weighted bootstraps, like the Bayesian bootstrap, with the bootstrap $t$ method for setting approximate confidence intervals for the mean of a random variable in small samples. For this problem the usual bootstrap $t$ has good coverage but provides intervals with long and highly variable lengths. Those intervals can have infinite length not just for tiny $n$, when the data have a discrete distribution. The BC$_a$ bootstrap produces shorter intervals but ten…

Observational Constraints on the Radial Evolution of O$^{6 }$ Temperature and Differential Flow in the Inner Heliosphere
Yeimy J. Rivera, Kristopher G. Klein, Joseph H. Wang, Lorenzo Matteini, Daniel Verscharen, Jesse T. Coburn, Samuel T. Badman, Susan T. Lepri, Ryan M. Dewey, Jim M. Raines, Benjamin L. Alterman, Timothy J. Stubbs, Kevin C. Delano, Roberto Livi, Stefano A. Livi, Antoinette B. Galvin, Christopher J. Owen, Michael L. Stevens

Observational Constraints on the Radial Evolution of O$^{6+}$ Temperature and Differential Flow in the Inner Heliosphere
Over decades of solar wind observations, heavy ions have been observed to have a higher temperature and flow faster than protons in the solar corona and heliosphere. Remote observations have largely been limited to the low corona ($< 4R_{\odot}$), while in situ observations for heavy ions ($Z>2$) have only been sampled at 1 au and beyond. As a result, theories that address heavy ion heating and acceleration remain largely unconstrained. With the launch of Solar Orbiter, heavy ion kinetics can b…

Replaced article(s) found for hep-ph. https://arxiv.org/list/hep-ph/new
[2/2]:
- Constraining dark-sector effects using gravitational waves from compact binary inspirals
Caroline B. Owen, Alexandria Tucker, Yonatan Kahn, Nicol\'as Yunes

Data-Driven Stabilisation of Unstable Periodic Orbits of the Three-Body Problem
Owen M. Brook, Jason J. Bramburger, Davide Amato, Urban Fasel
https://arxiv.org/abs/2507.08630

Data-Driven Stabilisation of Unstable Periodic Orbits of the Three-Body Problem
Many different models of the physical world exhibit chaotic dynamics, from fluid flows and chemical reactions to celestial mechanics. The study of the three-body problem (3BP) and its many different families of unstable periodic orbits (UPOs) have provided fundamental insight into chaotic dynamics as far back as the 19th century. The 3BP, a conservative system, is inherently challenging to sample due to its volume-preservation property. In this paper we present an interpretable data-driven appr…

Holomorphic field theories and higher algebra
Owen Gwilliam, Brian R. Williams
https://arxiv.org/abs/2508.07443 https://arxiv.org/pdf/2508.07443

Holomorphic field theories and higher algebra
Aimed at complex geometers and representation theorists, this survey explores higher dimensional analogues of the rich interplay between Riemann surfaces, Virasoro and Kac-Moody Lie algebras, and conformal blocks. We introduce a panoply of examples from physics -- field theories that are holomorphic in nature, such as holomorphic Chern-Simons theory -- and interpret them as (derived) moduli spaces in complex geometry; no comfort with physics is presumed. We then describe frameworks for quantizi…

Quadrupolar gyration of a Brownian particle in a confining ring
Iman Abdoli, Hartmut L\"owen
https://arxiv.org/abs/2508.08792 https://arxiv.org/pdf/25…

Quadrupolar gyration of a Brownian particle in a confining ring
We develop a minimal theoretical model that reveals a structured steady-state flux field with four alternating local circulation, a phenomenon we refer to as quadrupolar gyration. A passive Brownian particle is confined to move in a ring-shaped trap and driven far from equilibrium solely by anisotropic thermal fluctuations from two orthogonal heat baths held at different temperatures. By breaking detailed balance, this fundamental temperature anisotropy induces a robust nonequilibrium steady st…

Beto O'Rourke's political group is a top funder for Texas Democrats' exodus to block GOP congressional map (Owen Dahlkamp/The Texas Tribune)
https://www.texastribune.org/2025/08/05/texas-democrats-quorum-break-beto-orourke-illinois-funding/
http://www.memeorandum.com/250806/p9#a250806p9

On Devon Allen's Disqualification at the 2022 World Track and Field Championships
Owen Fiore, Elizabeth D. Schifano, Jun Yan
https://arxiv.org/abs/2506.11460

On Devon Allen's Disqualification at the 2022 World Track and Field Championships
Devon Allen's disqualification at the men's 110-meter hurdle final at the 2022 World Track and Field Championships, due to a reaction time (RT) of 0.099 seconds-just 0.001 seconds below the allowable threshold-sparked widespread debate over the fairness and validity of RT rules. This study investigates two key issues: variations in timing systems and the justification for the 0.1-second disqualification threshold. We pooled RT data from men's 110-meter hurdles and 100-meter dash, as well as wom…

Van der Waals waveguide quantum electrodynamics probed by infrared nano-photoluminescence
Samuel L. Moore, Hae Yeon Lee, Nicholas Rivera, Yuzuka Karube, Mark Ziffer, Emanuil S. Yanev, Thomas P. Darlington, Aaron J. Sternbach, Madisen A. Holbrook, Jordan Pack, Xiaodong Xu, Cory R. Dean, Jonathan S. Owen, P. James Schuck, Milan Delor, Xiaoyang Zhu, James Hone, Dmitri N. Basov

Van der Waals waveguide quantum electrodynamics probed by infrared nano-photoluminescence
Atomically layered van der Waals (vdW) materials exhibit remarkable properties, including highly-confined infrared waveguide modes and the capacity for infrared emission in the monolayer limit. Here, we engineered structures that leverage both of these nano-optical functionalities. Specifically, we encased a photoluminescing atomic sheet of MoTe2 within two bulk crystals of WSe2, forming a vdW waveguide for the embedded light-emitting monolayer. The modified electromagnetic environment offered …

Gigantic dynamical spreading and anomalous diffusion of jerky active particles
Hartmut L\"owen
https://arxiv.org/abs/2507.08910 https://

Gigantic dynamical spreading and anomalous diffusion of jerky active particles
Jerky active particles are Brownian self-propelled particles which are dominated by ``jerk'', the change in acceleration. They represent a generalization of inertial active particles. In order to describe jerky active particles, a linear jerk equation of motion which involves a third-order derivative in time, Stokes friction and a spring force is combined with activity modeled by an active Ornstein-Uhlenbeck process. This equation of motion is solved analytically and the associated mean-square …

🇺🇦 #NowPlaying on BBCRadio3's #BrassBandingWithHannahPeel
Antonio Vivaldi, Owen Farr & Tongwynlais Temperance Band:
🎵 Four Seasons For Brass: Summer
#AntonioVivaldi #OwenFarr #TongwynlaisTemperanceBand

A note on the diversity Owen values
Songtao He, Erfang Shan, Xinyu Sun
https://arxiv.org/abs/2505.24171 https://arxiv.org/pdf/2505.24…

A note on the diversity Owen values
Béal et al. (Int J Game Theory 54, 2025) introduce the Diversity Owen value for TU-games with diversity constraints, and provide axiomatic characterizations using the axioms of fairness and balanced contributions. However, there exist logical flaws in the proofs of the uniqueness of these characterizations. In this note we provides the corrected proofs of the characterizations by introducing the null player for diversity games axiom. Also, we establish two alternative characterizations of the …

Mario’s Tennis: what a racquet
I have only played on a Virtual Boy twice: once at a museum, and once at a UGVM meeting in honour of Owen. Both times were brief, uncomfortable, and underwhelming. I suspect there were some hardware adjustments which may have helped, but the screens were dim and blurry, and I had to sit at an awkward angle to use it.
…

Critical Design Strategy: a Method for Heuristically Evaluating Visualisation Designs
Jonathan C. Roberts, Hanan Alnjar, Aron E. Owen, Panagiotis D. Ritsos
https://arxiv.org/abs/2508.05325

Critical Design Strategy: a Method for Heuristically Evaluating Visualisation Designs
We present the Critical Design Strategy (CDS) - a structured method designed to facilitate the examination of visualisation designs through reflection and critical thought. The CDS helps designers think critically and make informed improvements using heuristic evaluation. When developing a visual tool or pioneering a novel visualisation approach, identifying areas for enhancement can be challenging. Critical thinking is particularly crucial for visualisation designers and tool developers, espec…

This post¹ from @… basically explains everything that's wrong with our society.
Get rid of those people² and things will improve.
__
¹https://mastodon.oysta.au/@oys…

Christopher Owen (@oysta@oysta.au)
Attached: 1 image we have found the International Prototype of the LinkedIn Post, time to put it in a glass dome in a basement somewhere

Understanding Community-Level Blocklists in Decentralized Social Media
Owen Xingjian Zhang, Sohyeon Hwang, Yuhan Liu, Manoel Horta Ribeiro, Andr\'es Monroy-Hern\'andez
https://arxiv.org/abs/2506.05522

Understanding Community-Level Blocklists in Decentralized Social Media
Community-level blocklists are key to content moderation practices in decentralized social media. These blocklists enable moderators to prevent other communities, such as those acting in bad faith, from interacting with their own -- and, if shared publicly, warn others about communities worth blocking. Prior work has examined blocklists in centralized social media, noting their potential for collective moderation outcomes, but has focused on blocklists as individual-level tools. To understand h…

🇺🇦 #NowPlaying on #BBC6Music's #CerysMatthews
The Eastman Symphonic Wind Ensemble & Frederick Fennell:
🎵 Garry Owen - Field Music of the US Army/Marching Tune
#TheEastmanSymphonicWindEnsemble #FrederickFennell

ASASSN-24fw: Candidate circumplanetary disk occultation of a main-sequence star
Nadia L. Zakamska, Gautham Adamane Pallathadka, Dmitry Bizyaev, Jaroslav Merc, James E. Owen, Kevin C. Schlaufman, Karolina B\k{a}kowska, S{\l}awomir Bednarz, Krzysztof Bernacki, Agnieszka Gurgul, Kirsten R. Hall, Franz-Josef Hambsch, Krzysztof Kotysz, Sebastian Kurowski, Alexios Liakos, Przemys{\l}aw J. Miko{\l}ajczyk, Erika Pak\v{s}tien\.e, Grzegorz Pojma\'nski, Adam Popowicz, Henrique Reggiani, Danie…

ASASSN-24fw: Candidate circumplanetary disk occultation of a main-sequence star
Dusty disks around planets in outer reaches of exo-planetary systems can be detected as long-lasting occultations, provided the observer is close to the planet's orbital plane. Here we report follow-up observations of ASASSN-24fw (Gaia 07:05:18.97+06:12:19.4), a 4-magnitude dimming event of a main-sequence star which lasted 8.5 months. Using optical spectroscopy with KOSMOS (APO), MagE (Magellan) and GHOST (Gemini-S), we find strong Na I D absorption indicating that the occulter is gas rich. We…

Report for America says for 2024-25, 55% of the 181 reporters in the program were hired into permanent positions; since 2018, RFA has placed 759 corps members (Laura Hazard Owen/Nieman Lab)
https://www.niemanlab.org/2025/08/report-f

On the optimization of discrepancy measures
Fran\c{c}ois Cl\'ement, Nathan Kirk, Art B. Owen, T. Konstantin Rusch
https://arxiv.org/abs/2508.04926 https://

On the optimization of discrepancy measures
Points in the unit cube with low discrepancy can be constructed using algebra or, more recently, by direct computational optimization of a criterion. The usual $L_\infty$ star discrepancy is a poor criterion for this because it is computationally expensive and lacks differentiability. Its usual replacement, the $L_2$ star discrepancy, is smooth but exhibits other pathologies shown by J. Matoušek. In an attempt to address these problems, we introduce the \textit{average squared discrepancy} whi…

Data Analysis and Modeling for Transitioning Between Laboratory Methods for Detecting SARS-CoV-2 in Wastewater
Maria M. Warns, Leah Mrowiec, Christopher Owen, Adam Horton, Chi-Yu Lin, Modou Lamin Jarju, Niall M. Mangan, Aaron Packman, Katelyn Plaisier Leisman, Abhilasha Shrestha, Rachel Poretsky
https://arxiv.org/abs/2508.05594

Data Analysis and Modeling for Transitioning Between Laboratory Methods for Detecting SARS-CoV-2 in Wastewater
Wastewater surveillance has proven to be a useful tool to monitor pathogens such as SARS-CoV-2 as it is a nonintrusive way to survey the potential disease burden of the population contributing to a sewershed. With the expansion of this field since the beginning of the COVID-19 pandemic, laboratory methods to process wastewater and quantify pathogen nucleic acid levels have improved as technologies changed, efforts expanded in size and scope, and supply chain issues were resolved. Maintaining da…

My #Series Recommendation 📺
👉 STICK ⛳ 🏌️
if you love Owen Wilson, you will love this funny "feel good" series ❤️

https://www.imdb.com/title/tt31710249/

Replacing detector simulation with heterogeneous GNNs in flavour physics analyses
Guillermo Hijano, Davide Lancierini, Alexander Mclean Marshall, Andrea Mauri, Patrick Owen, Mitesh Patel, Konstantinos Petridis, Shah Rukh Qasim, Nicola Serra, William Sutcliffe, Hanae Tilquin
https://arxiv.org/abs/2507.05069

Replacing detector simulation with heterogeneous GNNs in flavour physics analyses
Driven by the increasing volume of recorded data, the demand for simulation from experiments based at the Large Hadron Collider will rise sharply in the coming years. Addressing this demand solely with existing computationally intensive workflows is not feasible. This paper introduces a new fast simulation tool designed to address this demand at the LHCb experiment. This tool emulates the detector response to arbitrary multibody decay topologies at LHCb. Rather than memorising specific decay ch…

Autoadaptive Medical Segment Anything Model
Tyler Ward, Meredith K. Owen, O'Kira Coleman, Brian Noehren, Abdullah-Al-Zubaer Imran
https://arxiv.org/abs/2507.01828

Autoadaptive Medical Segment Anything Model
Medical image segmentation is a key task in the imaging workflow, influencing many image-based decisions. Traditional, fully-supervised segmentation models rely on large amounts of labeled training data, typically obtained through manual annotation, which can be an expensive, time-consuming, and error-prone process. This signals a need for accurate, automatic, and annotation-efficient methods of training these models. We propose ADA-SAM (automated, domain-specific, and adaptive segment anything…

@… Not directly a Nestflix, but not a million km away either... https://mastodon.oysta.au/@oysta/114588644020339419

FusionAudio-1.2M: Towards Fine-grained Audio Captioning with Multimodal Contextual Fusion
Shunian Chen, Xinyuan Xie, Zheshu Chen, Liyan Zhao, Owen Lee, Zhan Su, Qilin Sun, Benyou Wang
https://arxiv.org/abs/2506.01111

FusionAudio-1.2M: Towards Fine-grained Audio Captioning with Multimodal Contextual Fusion
High-quality, large-scale audio captioning is crucial for advancing audio understanding, yet current automated methods often generate captions that lack fine-grained detail and contextual accuracy, primarily due to their reliance on limited unimodal or superficial multimodal information. Drawing inspiration from human auditory perception, which adeptly integrates cross-modal cues and performs sophisticated auditory scene analysis, we introduce a novel two-stage automated pipeline. This pipeline…

NLP4Neuro: Sequence-to-sequence learning for neural population decoding
Jacob J. Morra, Kaitlyn E. Fouke, Kexin Hang, Zichen He, Owen Traubert, Timothy W. Dunn, Eva A. Naumann
https://arxiv.org/abs/2507.02264

NLP4Neuro: Sequence-to-sequence learning for neural population decoding
Delineating how animal behavior arises from neural activity is a foundational goal of neuroscience. However, as the computations underlying behavior unfold in networks of thousands of individual neurons across the entire brain, this presents challenges for investigating neural roles and computational mechanisms in large, densely wired mammalian brains during behavior. Transformers, the backbones of modern large language models (LLMs), have become powerful tools for neural decoding from smaller …

Proof of Shvartsman's conjecture on braid groups of projective complex reflection groups
Owen Garnier
https://arxiv.org/abs/2507.23561 https://arxiv.or…

Proof of Shvartsman's conjecture on braid groups of projective complex reflection groups
The purpose of this note is to prove a conjecture of Shvartsman relating a complex projective reflection group with the quotient of a suitable complex braid group by its center. Shvartsman originally proved this result in the case of real projective reflection groups, and we extend it to all complex projective reflection groups. Our study also allows us to correct a result of Broué, Malle, Rouquier on projective reflection groups.

This https://arxiv.org/abs/2505.24171 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_eco…

A note on the diversity Owen values
Béal et al. (Int J Game Theory 54, 2025) introduce the Diversity Owen value for TU-games with diversity constraints, and provide axiomatic characterizations using the axioms of fairness and balanced contributions. However, there exist logical flaws in the proofs of the uniqueness of these characterizations. In this note we provides the corrected proofs of the characterizations by introducing the null player for diversity games axiom. Also, we establish two alternative characterizations of the …

Newsom will move to redraw California map if Texas redistricts, teeing up national fight (Owen Dahlkamp/The Texas Tribune)
https://www.texastribune.org/2025/07/30/texas-redistricting-california-newsom-retaliatory-congressional-maps/
http://www.memeorandum.com/250730/p154#a250730p154

Use as Directed? A Comparison of Software Tools Intended to Check Rigor and Transparency of Published Work
Peter Eckmann, Adrian Barnett, Alexandra Bannach-Brown, Elisa Pilar Bascunan Atria, Guillaume Cabanac, Louise Delwen Owen Franzen, Ma{\l}gorzata Anna Gazda, Kaitlyn Hair, James Howison, Halil Kilicoglu, Cyril Labbe, Sarah McCann, Vladislav Nachev, Martijn Roelandse, Maia Salholz-Hillel, Robert Schulz, Gerben ter Riet, Colby Vorland, Anita Bandrowski, Tracey Weissgerber

Use as Directed? A Comparison of Software Tools Intended to Check Rigor and Transparency of Published Work
The causes of the reproducibility crisis include lack of standardization and transparency in scientific reporting. Checklists such as ARRIVE and CONSORT seek to improve transparency, but they are not always followed by authors and peer review often fails to identify missing items. To address these issues, there are several automated tools that have been designed to check different rigor criteria. We have conducted a broad comparison of 11 automated tools across 9 different rigor criteria from t…

Replaced article(s) found for cs.CE. https://arxiv.org/list/cs.CE/new
[1/1]:
- Dynamic flux surrogate-based partitioned methods for interface problems
Pavel Bochev, Justin Owen, Paul Kuberry, Jeffrey Connors

Bayesian Modeling for Aggregated Relational Data: A Unified Perspective
Owen G. Ward, Anna L. Smith, Tian Zheng
https://arxiv.org/abs/2506.21353 https://…

Bayesian Modeling for Aggregated Relational Data: A Unified Perspective
Aggregated relational data is widely collected to study social network theory. It has been used to address a variety of key problems in fields such as sociology, public health and economics. ARD models enable researchers to estimate the size of hidden populations, estimate personal network sizes, understand global network structures and fit complex latent variable models to massive network data. Many of the successes of ARD models have been driven by the utilisation of Bayesian modeling, which …

Broadband Relaxation Dynamics of Boron-Vacancy Centers in Hexagonal Boron Nitride
Abhishek Bharatbhai Solanki, Yueh-Chun Wu, Hamza Ather, Priyo Adhikary, Aravindh Shankar, Ian Gallagher, Xingyu Gao, Owen M. Matthiessen, Demid Sychev, Alexei Lagoutchev, Tongcang Li, Yong P. Chen, Vladimir M. Shalaev, Benjamin Lawrie, Pramey Upadhyaya
https://

Broadband Relaxation Dynamics of Boron-Vacancy Centers in Hexagonal Boron Nitride
The negatively charged boron vacancy center ($\mathrm{V_B^-}$) in hexagonal boron nitride ($\mathrm{hBN}$) has attracted attention for its potential applications in quantum sensing. While GHz-scale sensing at low magnetic fields has been demonstrated with these defects, their behavior at high fields remains largely unexplored. We investigate the spin relaxation dynamics of $\mathrm{V_B^-}$ centers over temperatures of $15-250$ K and magnetic fields of up to $7$ T, corresponding to a ground-stat…

Crosslisted article(s) found for stat.CO. https://arxiv.org/list/stat.CO/new
[1/1]:
- Better bootstrap t confidence intervals for the mean
Art B. Owen
https://

Adjoint-based A Posteriori Error Analysis for Semi-explicit Index-1 and Hessenberg Index-2 Differential-Algebraic Equations
Jehanzeb Chaudhry, Owen Lewis, Md Al Amin Molla
https://arxiv.org/abs/2507.03712

Adjoint-based A Posteriori Error Analysis for Semi-explicit Index-1 and Hessenberg Index-2 Differential-Algebraic Equations
In this work we develop and analyze adjoint-based analyses for \textit{a posteriori} error estimation for the temporal discretization of differential-algebraic equations (DAEs) of special type: semi-explicit index-1 and Hessenberg index-2. Our technique quantifies the error in a Quantity of Interest (QoI), which is defined as a bounded linear functional of the solution of a DAE. We derive representations for errors various trypes of QoIs (depending on the entire time interval, final time, algeb…

The Generalized Matrix Separation Problem: Algorithms
Xuemei Chen, Owen Deen
https://arxiv.org/abs/2507.17069 https://arxiv.org/pdf/2507.17069

The Generalized Matrix Separation Problem: Algorithms
When given a generalized matrix separation problem, which aims to recover a low rank matrix $L_0$ and a sparse matrix $S_0$ from $M_0=L_0+HS_0$, the work \cite{CW25} proposes a novel convex optimization problem whose objective function is the sum of the $\ell_1$-norm and nuclear norm. In this paper we detail the iterative algorithms and its associated computations for solving this convex optimization problem. We present various efficient implementation strategies, with attention to practical ca…

Langmuir Wave Excitation in Solar-wind Magnetic Holes
Jingting Liu, Daniel Verscharen, Jesse Coburn, Georgios Nicolaou, Xiangyu Wu, Wence Jiang, Oreste Pezzi, Francesco Pucci, Matteo Zuin, Christopher J. Owen, Hamish Reid
https://arxiv.org/abs/2507.02042

Langmuir Wave Excitation in Solar-wind Magnetic Holes
Magnetic holes are structures commonly observed in various space plasma environments throughout the solar system, including the solar wind. These structures are characterized by a localized decrease in magnetic field strength, coincident with an increase in plasma density. Previous observational studies in the solar wind link the presence of Langmuir waves to magnetic holes, suggesting a strong correlation between these phenomena. We develop a model based on magnetic-moment conservation and its…

From Patient Burdens to User Agency: Designing for Real-Time Protection Support in Online Health Consultations
Shuning Zhang, Ying Ma, Yongquan `Owen' Hu, Ting Dang, Hong Jia, Xin Yi, Hewu Li
https://arxiv.org/abs/2508.00328

From Patient Burdens to User Agency: Designing for Real-Time Protection Support in Online Health Consultations
Online medical consultation platforms, while convenient, are undermined by significant privacy risks that erode user trust. We first conducted in-depth semi-structured interviews with 12 users to understand their perceptions of security and privacy landscapes on online medical consultation platforms, as well as their practices, challenges and expectation. Our analysis reveals a critical disconnect between users' desires for anonymity and control, and platform realities that offload the responsi…

The NYT is making deals with other US news outlets: Philly Inquirer premium subscribers get access to the Cooking app and the Star Tribune bundled in Games (Laura Hazard Owen/Nieman Lab)
https://www.niemanlab.org/2025/07/publishe

Publishers like The Philadelphia Inquirer are bundling New York Times content into their subscriptions
The New York Times has been experimenting with these deals with other U.S. publishers over the last year.

(Non-)Perturbative Dynamics of a Light QCD Axion: Dark Matter and the Strong CP Problem
Raymond T. Co, Taegyu Lee, Owen P. Leonard
https://arxiv.org/abs/2508.00979 https://

(Non-)Perturbative Dynamics of a Light QCD Axion: Dark Matter and the Strong CP Problem
Considerable theoretical efforts have gone into expanding the reach of the QCD axion beyond its canonical mass--decay-constant relation. The $Z_\mathcal{N}$ QCD axion model reduces the QCD axion mass naturally, by invoking a discrete $Z_\mathcal{N}$ symmetry through which the axion field is coupled to $\mathcal{N}$ copies of the Standard Model. Before the QCD phase transition at temperature $T_{\rm QCD}$, the $Z_\mathcal{N}$ potential has a minimum at misalignment angle $θ=π$. At $T_{\rm QCD}…

Time-tagging data acquisition system for testing superconducting electronics based on an RFSoC and custom analog frontend
Reed A. Foster, Stephen Kandeh, Owen Medeiros, Alejandro Simon, Matteo Castellani, Karl K. Berggren
https://arxiv.org/abs/2505.21714

Time-tagging data acquisition system for testing superconducting electronics based on an RFSoC and custom analog frontend
Novel electronic devices can often be operated in a plethora of ways, which makes testing circuits comprised of them difficult. Often, no single tool can simultaneously analyze the operating margins, maximum speed, and failure modes of a circuit, particularly when the intended behavior of subcomponents of the circuit is not standardized. This work demonstrates a cost-effective data acquisition system for electronic circuits that enables more intricate verification techniques than are practical …

The algebraic structures of social organizations: the operad of cooperative games
Dylan Laplace Mermoud, Victor Roca i Lucio
https://arxiv.org/abs/2507.01969

The algebraic structures of social organizations: the operad of cooperative games
The main goal of this paper is to settle a conceptual framework for cooperative game theory in which the notion of composition/aggregation of games is the defining structure. This is done via the mathematical theory of algebraic operads: we start by endowing the collection of all cooperative games with any number of players with an operad structure, and we show that it generalises all the previous notions of sums, products and compositions of games considered by Owen, Shapley, von Neumann and M…

Neuromorphic Photonic Processing and Memory with Spiking Resonant Tunnelling Diode Neurons and Neural Networks
Dafydd Owen-Newns, Joshua Robertson, Giovanni Donati, Jose Figueiredo, Edward Wasige, Kathy Ludge, Bruno Romeira, Antonio Hurtado
https://arxiv.org/abs/2507.20866

Neuromorphic Photonic Processing and Memory with Spiking Resonant Tunnelling Diode Neurons and Neural Networks
Neuromorphic computing-modelled after the functionality and efficiency of biological neural systems-offers promising new directions for advancing artificial intelligence and computational models. Photonic techniques for neuromorphic computing hardware are attracting increasing research interest, thanks to their potentials for ultra high bandwidths, low-crosstalk and high parallelism. Among these, approaches based upon resonant tunnelling diodes (RTDs) have recently gained attention as potential…

High-order anisotropic flow and nonlinear hydrodynamic responses
Owen Horecny, Chun Shen
https://arxiv.org/abs/2506.02930 https://arx…

High-order anisotropic flow and nonlinear hydrodynamic responses
In this work, we study the charged hadron anisotropic flow coefficients $v_n$ (up to $n = 12$) using high-statistics event-by-event simulations of Pb+Pb collisions at $\sqrt{s_\mathrm{NN}} = 5.02$ and $5.36$~TeV, employing the IP-Glasma + MUSIC + UrQMD hybrid approach. The power spectra of anisotropic flow coefficients ($v_n\{2\}$ vs. $n$) are compared with the ALICE measurements from central to 50% centrality. To understand the various sources contributing to the high-order $v_n$ coefficients,…

Replaced article(s) found for math-ph. https://arxiv.org/list/math-ph/new
[1/1]:
- Spontaneous symmetry breaking: a view from derived geometry
Chris Elliott, Owen Gwilliam

"You have no credibility": Lake grilled by House Committee over Voice of America cuts (Garrett Owen/Salon)
https://www.salon.com/2025/06/25/you-have-no-credibility-lake-grilled-by-house-committee-over-voice-of-america-cuts/
http://www.memeorandum.com/250625/p149#a250625p149

Open Data Sharing in Clinical Research and Participants Privacy: Challenges and Opportunities in the Era of Artificial Intelligence
Shahin Hallaj (on behalf of the AI-READI Consortium), Anna Heinke (on behalf of the AI-READI Consortium), Fritz Gerald P. Kalaw (on behalf of the AI-READI Consortium), Nayoon Gim (on behalf of the AI-READI Consortium), Marian Blazes (on behalf of the AI-READI Consortium), Julia Owen (on behalf of the AI-READI Consortium), Eamon Dysinger (on behalf of the A…

Open Data Sharing in Clinical Research and Participants Privacy: Challenges and Opportunities in the Era of Artificial Intelligence
Sharing clinical research data is key for increasing the pace of medical discoveries that improve human health. However, concern about study participants' privacy, confidentiality, and safety is a major factor that deters researchers from openly sharing clinical data, even after deidentification. This concern is further heightened by the evolution of artificial intelligence (AI) approaches that pose an ever-increasing threat to the reidentification of study participants. Here, we discuss the ch…

Replaced article(s) found for cond-mat.stat-mech. https://arxiv.org/list/cond-mat.stat-mech/new
[1/1]:
- Engineering active motion in quantum matter
Alexander P. Antonov, Yuanjian Zheng, Benno Liebchen, Hartmut L\"owen

Promoting Online Safety by Simulating Unsafe Conversations with LLMs
Owen Hoffman, Kangze Peng, Zehua You, Sajid Kamal, Sukrit Venkatagiri
https://arxiv.org/abs/2507.22267 https…

Promoting Online Safety by Simulating Unsafe Conversations with LLMs
Generative AI, including large language models (LLMs) have the potential -- and already are being used -- to increase the speed, scale, and types of unsafe conversations online. LLMs lower the barrier for entry for bad actors to create unsafe conversations in particular because of their ability to generate persuasive and human-like text. In our current work, we explore ways to promote online safety by teaching people about unsafe conversations that can occur online with and without LLMs. We bui…

Scalable quantum current source on commercial 22-nm CMOS process technology
Ajit Dash, Suyash Pati Tripathi, Dimitrios Georgakopoulos, MengKe Feng, Steve Yianni, Ensar Vahapoglu, Md Mamunur Rahman, Shai Bonen, Owen Brace, Jonathan Y. Huang, Wee Han Lim, Kok Wai Chan, Will Gilbert, Arne Laucht, Andrea Morello, Andre Saraiva, Christopher C. Escott, Sorin P. Voinigescu, Andrew S. Dzurak, Tuomo Tanttu

Scalable quantum current source on commercial 22-nm CMOS process technology
Utilizing quantum effects in nanoscopic devices has in the past mostly been accessible through academic cleanrooms and research foundries. Opening the quantum frontier for wider industrial applications likely requires the scale of well-established complementary metal-oxide-semiconductor (CMOS) foundries for manufacturing transistor-based quantum devices operable above subkelvin temperatures. Here, we operate a commercial 22-nm-node fully depleted silicon-on-insulator (FDSOI) CMOS device as dual…

Odd Ramsey numbers of multipartite graphs and hypergraphs
Nicholas Crawford, Emily Heath, Owen Henderschedt, Coy Schwieder, Shira Zerbib
https://arxiv.org/abs/2507.19456 https:/…

Odd Ramsey numbers of multipartite graphs and hypergraphs
Given a hypergraph $G$ and a subhypergraph $H$ of $G$, the \emph{odd Ramsey number} $r_{odd}(G,H)$ is the minimum number of colors needed to edge-color $G$ so that every copy of $H$ intersects some color class in an odd number of edges. Generalizing a result of \cite{BHZ} in two different ways, in this paper we prove $r_{odd} \left(K_{n,n}, K_{2,t} \right)=\frac{n}{t} + o(n)$ for all $t\geq 2$, and $r_{odd} \left(\mathcal{K}^{(k)}_{n,\dots,n}, \mathcal{K}_{1,\dots,1,2,2} \right) = \frac{n}{2} +…

Bidirectional anisotropic solar energetic particle events observed by Solar Orbiter
Zheyi Ding, Robert F. Wimmer-Schweingruber, Yu Chen, Lingling Zhao, Alexander Kollhoff, Patrick K\"uhl, Liu Yang, Lars Berger, Verena Heidrich-Meisner, Javier Rodriguez-Pacheco, George C. Ho, Glenn M. Mason, Gang Li, Tom\'a\v{s} Form\'anek, Christopher J. Owen
https…

Bidirectional anisotropic solar energetic particle events observed by Solar Orbiter
Solar Energetic Particle (SEP) events are critical for understanding particle acceleration and transport in the heliosphere. While most SEP events involve outward streaming particles along open magnetic field lines, bidirectional events characterized by simultaneous sunward and anti-sunward particle flows offer unique insights into magnetic field topology and the interplay of multiple acceleration sources. We aim to investigate the origin and transport of energetic particles in two rare bidirec…

Oligonucleotide selective detection by levitated optomechanics
Timothy Wilson, Owen J. L. Rackham, Hendrik Ulbricht
https://arxiv.org/abs/2507.17940 https://

Oligonucleotide selective detection by levitated optomechanics
Here we examine the detection of oligonucleotide-specific signals in sensitive optomechanical experiments. Silica nanoparticles (SiNPs) were functionalized using ZnCl$_2$ and 25-mers of single-stranded deoxyadenosine and deoxythymidine monophosphate which were optically trapped by a 1550 nm wavelength laser in vacuum. In the optical trap, SiNPs behave as harmonic oscillators, and their oscillation frequency and amplitude can be precisely detected by optical interferometry. The data was compared…

Temperature overshooting in the Mpemba effect of frictional active matter
Alexander P. Antonov, Hartmut L\"owen
https://arxiv.org/abs/2507.23137 https://

Temperature overshooting in the Mpemba effect of frictional active matter
The traditional Mpemba effect refers to an anomalous cooling phenomenon when an initial hotter system cools down faster than an initial warm system. Such counterintuitive behavior has been confirmed and explored across phase transitions in condensed matter systems and also for colloidal particles exposed to a double-well potential. Here we predict a frictional Mpemba effect for a macroscopic body moving actively on a surface governed by Coulomb (dry) friction. For an initial high temperature, r…

Time-energy tradeoff in stochastic resetting using optimal control
R\'emi Goerlich, Kristian St{\o}levik Olsen, Hartmut L\"owen, Yael Roichman
https://arxiv.org/abs/2507.19387

Time-energy tradeoff in stochastic resetting using optimal control
Stochastic resetting is a driving mechanism that is known to minimize the first passage time to reach a target, at the cost of energy expenditure. The choice of the physical implementation of each resetting event determines the tradeoff between the acceleration of the search process and its energetic cost. Here, we present an optimal transport protocol that balances the duration and the energetic cost of each resetting event. This protocol drives a harmonically trapped Brownian particle between…

Updated Masses for the Gas Giants in the Eight-Planet Kepler-90 System Via Transit-Timing Variation and Radial Velocity Observations
David E. Shaw, Lauren M. Weiss, Eric Agol, Karen A. Collins, Khalid Barkaoui, Cristilyn N. Watkins, Richard P. Schwarz, Howard M. Relles, Chris Stockdale, John F. Kielkopf, Fabian Rodriguez Frustaglia, Allyson Bieryla, Joao Gregorio, Owen Mitchem, Katherine Linnenkohl, Adam Popowicz, Norio Narita, Akihiko Fukui, Micha\"el Gillon, Ramotholo Sefako, Av…

Updated Masses for the Gas Giants in the Eight-Planet Kepler-90 System Via Transit-Timing Variation and Radial Velocity Observations
The eight-planet Kepler-90 system exhibits the greatest multiplicity of planets found to date. All eight planets are transiting and were discovered in photometry from the NASA Kepler primary mission. The two outermost planets, g ($P_g$ = 211 d) and h ($P_h$ = 332 d) exhibit significant transit-timing variations (TTVs), but were only observed 6 and 3 times respectively by Kepler. These TTVs allow for the determination of planetary masses through dynamical modeling of the pair's gravitational int…

🇺🇦 #NowPlaying on #KEXP's #PositiveVibrations
Owen Gray:
🎵 It's Time for Love
#OwenGray
https://dubstorerecords.bandcamp.com/track/its-time-for-love
https://open.spotify.com/track/65EVJXhpg2nxhSEfUL7Jt7
🎶 show playlist 👇
https://open.spotify.com/playlist/46qAJTdb0tsgbv9W28FSXC
🎶 KEXP playlist 👇
https://open.spotify.com/playlist/6VNALrOa3gWbk794YuIrwg

🇺🇦 #NowPlaying on BBCRadio3's #ClassicalLive
Morfydd Llwyn Owen, BBC National Orchestra of Wales & Jonathan Bloxham:
🎵 Nocturne
#MorfyddLlwynOwen #BBCNationalOrchestraofWales #JonathanBloxham
#Spotify

BBC bias on Palestine, letter from journalists
"We believe the refusal to broadcast the documentary ‘Gaza: Medics Under Fire’ is just one in a long line of agenda driven decisions. ...
"We are not asking the BBC to take a side.  We are asking to be allowed to do our jobs in delivering facts transparently and with due context. ...
"As an organisation we have not offered any significant analysis of the UK government's involvement in the war on Palestinians. We have failed to report on weapons sales or their legal implications.  These stories have instead been broken by the BBC’s competitors. ...
"In some instances staff have been accused of having an agenda because they have posted news articles critical of the Israeli government on their social media. By comparison, [Robbie] Gibb remains in an influential post with little transparency regarding his decisions despite his ideological leanings being well known. ...
"There is a gulf between the BBC’s coverage of what is happening in Gaza and the West Bank and what our audiences can see is happening via multiple credible sources including human rights organisations, staff at the UN and journalists on the ground. ...
"We believe the role of Robbie Gibb, both on the Board, and as part of the Editorial Standards Committee, is untenable. We call on the BBC to do better for our audiences and recommit to our values of impartiality, honesty and reporting without fear or favour."
Full text here, Owen Jones article up-thread:
#BBC #media #bias #Israel #Palestine #Gaza #RobbieGibb #UKPol

A General Simulation-Based Optimisation Framework for Multipoint Constant-Stress Accelerated Life Tests
Owen McGrath, Kevin Burke
https://arxiv.org/abs/2507.00722

A General Simulation-Based Optimisation Framework for Multipoint Constant-Stress Accelerated Life Tests
Accelerated life testing (ALT) is a method of reducing the lifetime of components through exposure to extreme stress. This method of obtaining lifetime information involves the design of a testing experiment, i.e., an accelerated test plan. In this work, we adopt a simulation-based approach to obtaining optimal test plans for constant-stress accelerated life tests with multiple design points. Within this simulation framework we can easily assess a variety of test plans by modifying the number o…

🇺🇦 #NowPlaying on BBCRadio3's #NightTracks
Owen Spafford, Louis Campbell, Ben Nicholls & Alex Lyon:
🎵 26
#OwenSpafford #LouisCampbell #BenNicholls #AlexLyon
#Spotify

Quasi-Monte Carlo with one categorical variable
Valerie N. P. Ho, Art B. Owen, Zexin Pan
https://arxiv.org/abs/2506.16582 https://arx…

Quasi-Monte Carlo with one categorical variable
We study randomized quasi-Monte Carlo (RQMC) estimation of a multivariate integral where one of the variables takes only a finite number of values. This problem arises when the variable of integration is drawn from a mixture distribution as is common in importance sampling and also arises in some recent work on transport maps. We find that when integration error decreases at an RQMC rate that it is then beneficial to oversample the smallest mixture components instead of using a proportional all…

🇺🇦 #NowPlaying on BBCRadio3's #EssentialClassics
William Henry Harris, Choir of The Queen's College, Oxford & Owen Rees:
🎵 Faire is the Heaven
#WilliamHenryHarris #ChoirofTheQueensCollege #Oxford #OwenRees