Tootfinder

@… Should you assume that the Kessler event has occurred?

The problem with AI generated video is not that you might see something that was generated by a computer and mistake it for something real, it's that you might see video of something real and dismiss it because you assume that it was generated by a computer.

I wrote a blog post about my experience installing #Meshcore on my #Heltec V3 device and the settings you need when you are in Canada.
This is not an intro blog post to mesh in general, this assume existing knowledge about

@… hey, thanks for the follow! I saw you follow the Chinafake wiki on tumblr and on here as well, so I assume you know me :P
you can watch all my videos from @…
I also suggest making a post …

Ilya Sutskever becomes the CEO of Safe Superintelligence, the AI startup he co-founded after leaving OpenAI; Meta reportedly poached previous CEO Daniel Gross (Ashley Capoot/CNBC)
https://www.cnbc.com/2025/07/03/ilya-sutsk

I've been pondering the AI botnet issue for Git forges. Seems to me they seem to airways hit */*/commit/ or */*/blame/ and other such endpoints. It seems reasonable to assume (at least to me) that those types of endpoints are only going to be hit by legitimate users if they are actively working on the code. It would be really beneficial if there were a setting in #forgejo and other forges…

Align-then-Slide: A complete evaluation framework for Ultra-Long Document-Level Machine Translation
Jiaxin Guo, Daimeng Wei, Yuanchang Luo, Xiaoyu Chen, Zhanglin Wu, Huan Yang, Hengchao Shang, Zongyao Li, Zhiqiang Rao, Jinlong Yang, Hao Yang
https://arxiv.org/abs/2509.03809

Align-then-Slide: A complete evaluation framework for Ultra-Long Document-Level Machine Translation
Large language models (LLMs) have ushered in a new era for document-level machine translation (\textit{doc}-mt), yet their whole-document outputs challenge existing evaluation methods that assume sentence-by-sentence alignment. We introduce \textit{\textbf{Align-then-Slide}}, a complete evaluation framework for ultra-long doc-mt. In the Align stage, we automatically infer sentence-level source-target correspondences and rebuild the target to match the source sentence number, resolving omissions…

Planning with Dynamically Changing Domains
Mikhail Soutchanski, Yongmei Liu
https://arxiv.org/abs/2508.02697 https://arxiv.org/pdf/2508.02697

Planning with Dynamically Changing Domains
In classical planning and conformant planning, it is assumed that there are finitely many named objects given in advance, and only they can participate in actions and in fluents. This is the Domain Closure Assumption (DCA). However, there are practical planning problems where the set of objects changes dynamically as actions are performed; e.g., new objects can be created, old objects can be destroyed. We formulate the planning problem in first-order logic, assume an initial theory is a finite …

Stabilizing ergotropy in Spin-Chain Quantum Batteries via Energy-Invariant Catalysis under Strong Non-Markovian Coupling
Shun-Cai Zhao, Liang Luo, Ni-Ya Zhuang
https://arxiv.org/abs/2508.02772

Stabilizing ergotropy in Spin-Chain Quantum Batteries via Energy-Invariant Catalysis under Strong Non-Markovian Coupling
Quantum batteries (QBs) have emerged as promising platforms for microscale energy storage, yet most existing studies assume weak system-environment coupling and Markovian dynamics. Here we explore how physical catalysis can regulate the maximum extractable work (ergotropy) of a spin-chain QB strongly coupled to a cavity environment. We model the system using a Nakajima-Zwanzig-type non-Markovian master equation and simulate the time evolution of ergotropy under various physical parameters. Our …

Reactive In-Air Clothing Manipulation with Confidence-Aware Dense Correspondence and Visuotactile Affordance
Neha Sunil, Megha Tippur, Arnau Saumell, Edward Adelson, Alberto Rodriguez
https://arxiv.org/abs/2509.03889

Reactive In-Air Clothing Manipulation with Confidence-Aware Dense Correspondence and Visuotactile Affordance
Manipulating clothing is challenging due to complex configurations, variable material dynamics, and frequent self-occlusion. Prior systems often flatten garments or assume visibility of key features. We present a dual-arm visuotactile framework that combines confidence-aware dense visual correspondence and tactile-supervised grasp affordance to operate directly on crumpled and suspended garments. The correspondence model is trained on a custom, high-fidelity simulated dataset using a distributi…

On the two-dimensional Navier-Stokes equations with horizontal viscosity
Chongsheng Cao, Yanqiu Guo
https://arxiv.org/abs/2507.02775 https://

On the two-dimensional Navier-Stokes equations with horizontal viscosity
This paper is concerned with a 2D channel flow that is periodic horizontally but bounded above and below by hard walls. We assume the presence of horizontal viscosity only. We study the well-posedness, large-time behavior, and stability of solutions. For global well-posedness, we aim to assume less differentiability on initial velocity $(u_0, v_0)$: in particular, we assume $u_0,v_0\in L^2(Ω)$ and $\partial_y u_0 \in L^2(Ω)$.

Hierarchical MoE: Continuous Multimodal Emotion Recognition with Incomplete and Asynchronous Inputs
Yitong Zhu, Lei Han, GuanXuan Jiang, PengYuan Zhou, Yuyang Wang
https://arxiv.org/abs/2508.02133

Hierarchical MoE: Continuous Multimodal Emotion Recognition with Incomplete and Asynchronous Inputs
Multimodal emotion recognition (MER) is crucial for human-computer interaction, yet real-world challenges like dynamic modality incompleteness and asynchrony severely limit its robustness. Existing methods often assume consistently complete data or lack dynamic adaptability. To address these limitations, we propose a novel Hi-MoE~(Hierarchical Mixture-of-Experts) framework for robust continuous emotion prediction. This framework employs a dual-layer expert structure. A Modality Expert Bank util…

Whenever I come across an article on teaching titled something like "ChatGPT isn't just for cheating anymore," I assume it was written by ChatGPT.

What's the preferred easy-to-use benchmarking tool these days for testing full HTTP responses? I know ab (apache bench), but it's also very old so I assume there's a new favorite.
This is for mostly informal tests, so ease of use > capability. Must run on Linux CLI.
#PHP

This https://arxiv.org/abs/2505.21199 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csDC_…

Multi-Event Triggers for Serverless Computing
Function-as-a-Service (FaaS) is an event-driven serverless cloud computing model in which small, stateless functions are invoked in response to events, such as HTTP requests, new database entries, or messages. Current FaaS platform assume that each function invocation corresponds to a single event. However, from an application perspective, it is desirable to invoke functions in response to a collection of events of different types or only with every n\textsuperscript{th} event. To implement thi…

@… I don’t know what that means but I’m gonna assume it’s a polite way of saying an impolite thing. 😄

Shuffling Heuristic in Variational Inequalities: Establishing New Convergence Guarantees
Daniil Medyakov, Gleb Molodtsov, Grigoriy Evseev, Egor Petrov, Aleksandr Beznosikov
https://arxiv.org/abs/2509.04133

Shuffling Heuristic in Variational Inequalities: Establishing New Convergence Guarantees
Variational inequalities have gained significant attention in machine learning and optimization research. While stochastic methods for solving these problems typically assume independent data sampling, we investigate an alternative approach -- the shuffling heuristic. This strategy involves permuting the dataset before sequential processing, ensuring equal consideration of all data points. Despite its practical utility, theoretical guarantees for shuffling in variational inequalities remain une…

Computation of Feasible Assume-Guarantee Contracts: A Resilience-based Approach
Negar Monir, Youssef Ait Si, Ratnangshu Das, Pushpak Jagtap, Adnane Saoud, Sadegh Soudjani
https://arxiv.org/abs/2509.01832

Computation of Feasible Assume-Guarantee Contracts: A Resilience-based Approach
We propose a resilience-based framework for computing feasible assume-guarantee contracts that ensure the satisfaction of temporal specifications in interconnected discrete-time systems. Interconnection effects are modeled as structured disturbances. We use a resilience metric, the maximum disturbance under which local specifications hold, to refine assumptions and guarantees across subsystems iteratively. For two subsystems, we demonstrate correctness, monotone refinement of guarantees, and th…

Kernel ridge regression based sound field estimation using a rigid spherical microphone array
Ryo Matsuda, Juliano G. C. Ribeiro, Hitoshi Akiyama, Jorge Trevino
https://arxiv.org/abs/2508.03087

Kernel ridge regression based sound field estimation using a rigid spherical microphone array
We propose a sound field estimation method based on kernel ridge regression using a rigid spherical microphone array. Kernel ridge regression with physically constrained kernel functions, and further with kernel functions adapted to observed sound fields, have proven to be powerful tools. However, such methods generally assume an open-sphere microphone array configuration, i.e., no scatterers exist within the observation or estimation region. Alternatively, some approaches assume the presence o…

@… Same here, except that I haven’t taken my air purifier to class, figuring that it didn’t have enough throughput to make a difference. I assume you’re placing it close to you? What model are you using?

@… Same here, except that I haven’t taken my air purifier to class, figuring that it didn’t have enough throughput to make a difference. I assume you’re placing it close to you? What model are you using?

Density estimation with atoms, and functional estimation for mixed discrete-continuous data
Aytijhya Saha, Aaditya Ramdas
https://arxiv.org/abs/2508.01706 https://

Density estimation with atoms, and functional estimation for mixed discrete-continuous data
In classical density (or density-functional) estimation, it is standard to assume that the underlying distribution has a density with respect to the Lebesgue measure. However, when the data distribution is a mixture of continuous and discrete components, the resulting methods are inconsistent in theory and perform poorly in practice. In this paper, we point out that a minor modification of existing methods for nonparametric density (functional) estimation can allow us to fully remove this assum…

You know, Karl Popper was no saint but if my theory is that “LLMs make errors and mistakes by omission and by addition” then you cannot falsify my theory by saying “but here’s an example of an error-free LLM” (yes, doesn’t exist, but let’s assume there is one).
That’s not how logic logics.

I assume people who use #ai for programming would use a computer to solve a #sudoku puzzle then brag to others about being great at solving sudoku puzzles.

Deformations and Einstein metrics I
Changtao Yu
https://arxiv.org/abs/2508.03419 https://arxiv.org/pdf/2508.03419…

Deformations and Einstein metrics I
This essay is about how to construct a new Einstein metric by an old one. Given an Einstein metric $α$ and its Killing $1$-form $β$, donote $b:=\|β\|_α$, we aim to determined the deformation factors $e^{ρ(b^2)}$ and $κ(b^2)$ such that $e^{ρ(b^2)}\sqrt{α^2-κ(b^2)β^2}$ becomes an Einstein metric. In face, it will depends critically on the peculiarities of the Killing $1$-form. As the first article in this series, we assume $β$ satisfies two curcial conditions (5.3) and (5.4),…

Spline Shallow Water Moment Equations
Ullika Scholz, Julian Koellermeier
https://arxiv.org/abs/2508.02714 https://arxiv.org/pdf/2508.02714

Spline Shallow Water Moment Equations
Reduced models for free-surface flows are required due to the high dimensionality of the underlying incompressible Navier-Stokes equations, which need to fully resolve the flow in vertical direction to compute the surface height. On the other hand, standard reduced models, such as the classical Shallow Water Equations (SWE), which assume a small depth-to-length ratio and use depth-averaging, do not provide information about the vertical velocity profile variations. As a compromise, a recently p…

added alpine instructions to https://glasgow-embedded.org/latest/install.html
(these assume that you run a desktop environment and not a container, like all the other options)

Natural Latents: Latent Variables Stable Across Ontologies
John Wentworth, David Lorell
https://arxiv.org/abs/2509.03780 https://arxiv.org/pdf/2509.03780…

Natural Latents: Latent Variables Stable Across Ontologies
Suppose two Bayesian agents each learn a generative model of the same environment. We will assume the two have converged on the predictive distribution, i.e. distribution over some observables in the environment, but may have different generative models containing different latent variables. Under what conditions can one agent guarantee that their latents are a function of the other agents latents? We give simple conditions under which such translation is guaranteed to be possible: the natura…

How to tell a vibe coder of lying when they say they check their code.
People who will admit to using LLMs to write code will usually claim that they "carefully check" the output since we all know that LLM code has a lot of errors in it. This is insufficient to address several problems that LLMs cause, including labor issues, digital commons stress/pollution, license violation, and environmental issues, but at least it's they are checking their code carefully we shouldn't assume that it's any worse quality-wise than human-authored code, right?
Well, from principles alone we can expect it to be worse, since checking code the AI wrote is a much more boring task than writing code yourself, so anyone who has ever studied human-computer interaction even a little bit can predict people will quickly slack off, stating to trust the AI way too much, because it's less work. I'm a different domain, the journalist who published an entire "summer reading list" full of nonexistent titles is a great example of this. I'm sure he also intended to carefully check the AI output, but then got lazy. Clearly he did not have a good grasp of the likely failure modes of the tool he was using.
But for vibe coders, there's one easy tell we can look for, at least in some cases: coding in Python without type hints. To be clear, this doesn't apply to novice coders, who might not be aware that type hints are an option. But any serious Python software engineer, whether they used type hints before or not, would know that they're an option. And if you know they're an option, you also know they're an excellent tool for catching code defects, with a very low effort:reward ratio, especially if we assume an LLM generates them. Of the cases where adding types requires any thought at all, 95% of them offer chances to improve your code design and make it more robust. Knowing about but not using type hints in Python is a great sign that you don't care very much about code quality. That's totally fine in many cases: I've got a few demos or jam games in Python with no type hints, and it's okay that they're buggy. I was never going to debug them to a polished level anyways. But if we're talking about a vibe coder who claims that they're taking extra care to check for the (frequent) LLM-induced errors, that's not the situation.
Note that this shouldn't be read as an endorsement of vibe coding for demos or other rough-is-acceptable code: the other ethical issues I skipped past at the start still make it unethical to use in all but a few cases (for example, I have my students use it for a single assignment so they can see for themselves how it's not all it's cracked up to be, and even then they have an option to observe a pre-recorded prompt session instead).

Direct reciprocity in asynchronous interactions
Ketian Sun, Qi Su, Long Wang
https://arxiv.org/abs/2506.04264 https://arxiv.org/pdf/2…

Direct reciprocity in asynchronous interactions
Cooperation is vital for the survival of living systems but is challenging due to the costs borne by altruistic individuals. Direct reciprocity, where actions are based on past encounters, is a key mechanism fostering cooperation. However, most studies assume synchronous decision-making, whereas real-world interactions are often asynchronous, with individuals acting in sequence. This asynchrony can undermine standard cooperative strategies like Tit-for-Tat and Win-Stay Lose-Shift. To better und…

Zero modes and index theorems for non-Hermitian Dirac fermions
Bitan Roy
https://arxiv.org/abs/2509.04447 https://arxiv.org/pdf/2509.04447

Zero modes and index theorems for non-Hermitian Dirac fermions
Dirac fermions, subject to external magnetic fields and in the presence of mass orders that assume topologically nontrivial spatial textures such as domain-wall and vortices, for example, bind robust mid-gap states at zero-energy, the number of which is governed by the Aharonov-Casher and Jackiw-Rebbi or Jackiw-Rossi index theorems, respectively. Here I extend the jurisdiction of these prominent index theorems to Lorentz invariant non-Hermitian (NH) Dirac operators, constructed by augmenting th…

Note on real and imaginary parts of harmonic quasiregular mappings
Suman Das, Antti Rasila
https://arxiv.org/abs/2506.04618 https://a…

Note on real and imaginary parts of harmonic quasiregular mappings
If $f=u+iv$ is analytic in the unit disk $\mathbb{D}$, it is known that the integral means $M_p(r,u)$ and $M_p(r,v)$ have the same order of growth. This is false if $f$ is a (complex-valued) harmonic function. However, we prove that the same principle holds if we assume, in addition, that $f$ is $K$-quasiregular in $\mathbb{D}$. The case $0

TransAM: Transformer-Based Agent Modeling for Multi-Agent Systems via Local Trajectory Encoding
Conor Wallace, Umer Siddique, Yongcan Cao
https://arxiv.org/abs/2508.02826 https:…

TransAM: Transformer-Based Agent Modeling for Multi-Agent Systems via Local Trajectory Encoding
Agent modeling is a critical component in developing effective policies within multi-agent systems, as it enables agents to form beliefs about the behaviors, intentions, and competencies of others. Many existing approaches assume access to other agents' episodic trajectories, a condition often unrealistic in real-world applications. Consequently, a practical agent modeling approach must learn a robust representation of the policies of the other agents based only on the local trajectory of the c…

Fast and Simplex: 2-Simplicial Attention in Triton
Aurko Roy, Timothy Chou, Sai Surya Duvvuri, Sijia Chen, Jiecao Yu, Xiaodong Wang, Manzil Zaheer, Rohan Anil
https://arxiv.org/abs/2507.02754

Fast and Simplex: 2-Simplicial Attention in Triton
Recent work has shown that training loss scales as a power law with both model size and the number of tokens, and that achieving compute-optimal models requires scaling model size and token count together. However, these scaling laws assume an infinite supply of data and apply primarily in compute-bound settings. As modern large language models increasingly rely on massive internet-scale datasets, the assumption that they are compute-bound is becoming less valid. This shift highlights the need …

TensoIS: A Step Towards Feed-Forward Tensorial Inverse Subsurface Scattering for Perlin Distributed Heterogeneous Media
Ashish Tiwari, Satyam Bhardwaj, Yash Bachwana, Parag Sarvoday Sahu, T. M. Feroz Ali, Bhargava Chintalapati, Shanmuganathan Raman
https://arxiv.org/abs/2509.04047

TensoIS: A Step Towards Feed-Forward Tensorial Inverse Subsurface Scattering for Perlin Distributed Heterogeneous Media
Estimating scattering parameters of heterogeneous media from images is a severely under-constrained and challenging problem. Most of the existing approaches model BSSRDF either through an analysis-by-synthesis approach, approximating complex path integrals, or using differentiable volume rendering techniques to account for heterogeneity. However, only a few studies have applied learning-based methods to estimate subsurface scattering parameters, but they assume homogeneous media. Interestingly,…

A way to treat dual Hahn polynomials as Racah polynomials via the theory of Leonard pairs
Hau-Wen Huang
https://arxiv.org/abs/2508.02032 https://arxiv.org/…

A way to treat dual Hahn polynomials as Racah polynomials via the theory of Leonard pairs
The dual Hahn polynomials $\{u_i(x)\}_{i=0}^d$ are a family of discrete orthogonal polynomials involving two real parameters $r$ and $s$. Let $L,L^*$ denote the corresponding Leonard pair. Assume that $r\not=0$ and $r+s=0$. We show that $L,(L^*+\frac{r-d}{2})^{2}$ is a Leonard pair. According to the theory of Leonard pairs, the polynomials $\{u_i(x)\}_{i=0}^d$ are not only the dual Hahn polynomials but also the Racah polynomials with respect to the same inner product.

Entanglement Detection Beyond Local Bound with Coarse Calibrated measurements
Liang-Liang Sun, Yong-Shun Song, Sixia Yu
https://arxiv.org/abs/2508.03525 https://

Entanglement Detection Beyond Local Bound with Coarse Calibrated measurements
Bell's test, initially devised to distinguish quantum theory from local hidden variable models through violations of local bounds, is also a common tool for detecting entanglement. For this purpose, one can assume the quantum description of devices and use available information to strengthen the bound for separable states, which may go beyond the local bound, enabling more efficient entanglement detection. Here we present a systematic approach for strengthening Bell inequalities for qubit syste…

Manip4Care: Robotic Manipulation of Human Limbs for Solving Assistive Tasks
Yubin Koh, Ahmed H. Qureshi
https://arxiv.org/abs/2508.02649 https://arxiv.org/…

Manip4Care: Robotic Manipulation of Human Limbs for Solving Assistive Tasks
Enabling robots to grasp and reposition human limbs can significantly enhance their ability to provide assistive care to individuals with severe mobility impairments, particularly in tasks such as robot-assisted bed bathing and dressing. However, existing assistive robotics solutions often assume that the human remains static or quasi-static, limiting their effectiveness. To address this issue, we present Manip4Care, a modular simulation pipeline that enables robotic manipulators to grasp and r…

@CoMaps@floss.social
The settings offer the option to use ‘Google Fused Location Services’. I assume this is so that this Google service can still be used even if it is disabled in the Android settings. @… offers an alternative #locationService

Finished removing the deprecated ImGui font size calculations in ngscopeclient.
Now we're down to only two tickets blocking the v0.1 release (MacOS binary packaging and fixing all of the shaders that assume we can run arbitrarily many blocks in the X axis direction).
And hopefully we can get the application icon artwork done by then too.

Logarithmic derivatives of L-functions and small prime quadratic nonresidues
Genheng Zhao
https://arxiv.org/abs/2509.03157 https://arxiv.org/pdf/2509.03157…

Logarithmic derivatives of L-functions and small prime quadratic nonresidues
Let $χ$ be a real non-principal character modulo a prime $q$ and $L(s,χ)$ be the corresponding $L$-function. We prove that for any real number $s\geq 1$ there holds $$ -\frac{L'(s,χ)}{L(s,χ)}\leq c \log q,$$ where $c$ can be taken arbitrarily close to $1/4$ if we assume $q$ is sufficiently large depending upon it. As a consequence, for all large $q$, there are at least $q^{3/50}$ primes $p$ smaller than $q$ such that $χ(p)=-1$.

The ratio monotonicity of Eulerian-type polynomials
Jun-Ying Liu, Guanwu Liu, Shi-Mei Ma, Zhi-Hong Zhang
https://arxiv.org/abs/2509.03397 https://arxiv.org…

The ratio monotonicity of Eulerian-type polynomials
This paper is motivated by determining the location of modes of some unimodal Eulerian-type polynomials. The notion of ratio monotonicity was introduced by Chen-Xia when they investigated the $q$-derangement numbers. Let $(f_n(x))_{n\geqslant 0}$ be a sequence of real polynomials satisfying the Eulerian-type recurrence relation $$f_{n+1}(x)=(anx+bx+c)f_n(x)+ax(1-x)\frac{\mathrm{d}}{\mathrm{d}x}f_n(x),~f_0(x)=1,$$ where $a,b$ and $c$ are nonnegative integers. Assume that $deg f_n(x)=n$. Setting …

Cauchy problem for the localized wave propagation in continuous model of the one-dimensional diatomic crystal
Sergey Sergeev
https://arxiv.org/abs/2507.02729

Cauchy problem for the localized wave propagation in continuous model of the one-dimensional diatomic crystal
We study the continuous model of the localized wave propagation corresponding to the one-dimensional diatomic crystal lattice. From the mathematical point of view the problem can be described in terms of the Cauchy problem with localized initial data for a system of two pseudo-differential equations. We assume two small parameters in this formulation -- the lattice step and the size if the initial perturbation. We construct the asymptotic solution of the continuous Cauchy problem with respect t…

Multi-messenger lensing time delay as a probe of the graviton mass
Elena Colangeli, Charles Dalang, Tessa Baker
https://arxiv.org/abs/2509.03196 https://ar…

Multi-messenger lensing time delay as a probe of the graviton mass
Gravitational lensing is a powerful probe of cosmology and astrophysics. With the prospect of the first strongly lensed gravitational waves on the horizon, we highlight an opportunity to test fundamental physics. In this work, we assume a nonzero mass for the graviton, which leads to gravitational waves following timelike geodesics instead of null geodesics. We derive standard gravitational lensing equations, such as the scattering angle, the time-delay between different images and the magnific…

Robust Simulation Based Inference
Lorenzo Tomaselli, Val\'erie Ventura, Larry Wasserman
https://arxiv.org/abs/2508.02404 https://arxiv.org/pdf/2508.024…

Robust Simulation Based Inference
Simulation-Based Inference (SBI) is an approach to statistical inference where simulations from an assumed model are used to construct estimators and confidence sets. SBI is often used when the likelihood is intractable and to construct confidence sets that do not rely on asymptotic methods or regularity conditions. Traditional SBI methods assume that the model is correct, but, as always, this can lead to invalid inference when the model is misspecified. This paper introduces robust methods tha…

Joint Radiation Power, Antenna Position, and Beamforming Optimization for Pinching-Antenna Systems with Motion Power Consumption
Yiming Xu, Dongfang Xu, Xianghao Yu, Shenghui Song, Zhiguo Ding, Robert Schober
https://arxiv.org/abs/2507.02348

Joint Radiation Power, Antenna Position, and Beamforming Optimization for Pinching-Antenna Systems with Motion Power Consumption
Pinching-antenna systems (PASS) have been recently proposed to improve the performance of wireless networks by reconfiguring both the large-scale and small-scale channel conditions. However, existing studies ignore the physical constraints of antenna placement and assume fixed antenna radiation power. To fill this research gap, this paper investigates the design of PASS taking into account the motion power consumption of pinching-antennas (PAs) and the impact of adjustable antenna radiation pow…

Impact of one-loop corrections to trilinear scalar couplings on di-Higgs production in the RxSM
Johannes Braathen, Sven Heinemeyer, Andrea Parra Arnay, Alain Verduras Schaeidt
https://arxiv.org/abs/2507.02569

Impact of one-loop corrections to trilinear scalar couplings on di-Higgs production in the RxSM
We investigate di-Higgs production at the (HL-)LHC and possible high-energy future $e^+e^-$ colliders within the real Higgs singlet extension of the Standard Model (SM), the RxSM. This model has two CP-even Higgs bosons, $h$ and $H$, for which we assume $m_h\sim 125 \text{ GeV} < m_H$. We analyse the effect of one-loop corrections to the two trilinear scalar couplings relevant for di-Higgs production, $λ_{hhh}$ and $λ_{hhH}$, by performing an extensive parameter scan within the RxSM. We find …

Hierarchical Learning-Based Control for Multi-Agent Shepherding of Stochastic Autonomous Agents
Italo Napolitano, Stefano Covone, Andrea Lama, Francesco De Lellis, Mario di Bernardo
https://arxiv.org/abs/2508.02632

Hierarchical Learning-Based Control for Multi-Agent Shepherding of Stochastic Autonomous Agents
Multi-agent shepherding represents a challenging distributed control problem where herder agents must coordinate to guide independently moving targets to desired spatial configurations. Most existing control strategies assume cohesive target behavior, which frequently fails in practical applications where targets exhibit stochastic autonomous behavior. This paper presents a hierarchical learning-based control architecture that decomposes the shepherding problem into a high-level decision-making…

15 mins in to a 25 minute fight in expedition 33 i'm like "I get it". Why would they make these fights so long. I assume you can grind to the point they take faster?
Outside of big story bosses no fight should be longer then 10 minutes.
#videogames #rpgs

The role of zealots in the spread of linguistic traits
Vivian Dornelas, Celia Anteneodo, Renan Nunes, Els Heinsalu, Marco Patriarca
https://arxiv.org/abs/2508.01500 https://

The role of zealots in the spread of linguistic traits
We investigate the diffusion of linguistic innovations on a fully connected network in order to understand the emergence of linguistic diversity. We employ an agent-based dynamics based on the Axelrod model, where interactions between agents are driven by homophily and social influence, with the difference that we assume that all agents share a number of common features that ensure a finite probability of pairwise interaction. We start from a homogeneous population and introduce zealots that ac…

Hadronic origin of the very high-energy gamma-ray emission from the low-luminosity AGN in NGC 4278
Asahi Shoji, Yutaka Fujita, Norita Kawanaka, Susumu Inoue, Kosuke Nishiwaki
https://arxiv.org/abs/2507.02326

Hadronic origin of the very high-energy gamma-ray emission from the low-luminosity AGN in NGC 4278
The Large High Altitude Air Shower Observatory has detected very high-energy (VHE) gamma rays from NGC 4278, which is known to host a low-luminosity active galactic nucleus (AGN). Having only very weak radio jets, the origin of its VHE gamma rays is unclear. In this paper we first show that NGC 4278 has a massive molecular cloud surrounding the nucleus by analyzing data taken with the Atacama Large Millimeter/submillimeter Array. We then assume that cosmic ray protons are accelerated in a radia…

This https://arxiv.org/abs/2502.10613 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Function recovery and optimal sampling in the presence of nonuniform evaluation costs
We consider recovering a function $f : D \rightarrow \mathbb{C}$ in an $n$-dimensional linear subspace $\mathcal{P}$ from i.i.d. pointwise samples via (weighted) least-squares estimators. Different from most works, we assume the cost of evaluating $f$ is potentially nonuniform, and governed by a cost function $c : D \rightarrow (0,\infty)$ which may blow up at certain points. We therefore strive to choose the sampling measure in a way that minimizes the expected total cost. We provide a recover…

Robust Econometrics for Growth-at-Risk
Tobias Adrian, Yuya Sasaki, Yulong Wang
https://arxiv.org/abs/2508.00263 https://arxiv.org/pdf/2508.00263

Robust Econometrics for Growth-at-Risk
The Growth-at-Risk (GaR) framework has garnered attention in recent econometric literature, yet current approaches implicitly assume a constant Pareto exponent. We introduce novel and robust econometrics to estimate the tails of GaR based on a rigorous theoretical framework and establish validity and effectiveness. Simulations demonstrate consistent outperformance relative to existing alternatives in terms of predictive accuracy. We perform a long-term GaR analysis that provides accurate and in…

Closing the Visibility Gap: A Monitoring Framework for Verifiable Open RAN Operations
Hexuan Yu, Md Mohaimin Al Barat, Yang Xiao, Y. Thomas Hou, Wenjing Lou
https://arxiv.org/abs/2509.03000

Closing the Visibility Gap: A Monitoring Framework for Verifiable Open RAN Operations
Open Radio Access Network (Open RAN) is reshaping mobile network architecture by promoting openness, disaggregation, and cross-vendor interoperability. However, this architectural flexibility introduces new security challenges, especially in deployments where multiple mobile network operators (MNOs) jointly operate shared components. Existing Zero Trust Architectures (ZTA) in O-RAN, as defined by governmental and industry standards, implicitly assume that authenticated components will comply wi…

At this point, I'm going to assume that any AI-enhanced service that responds with, "You're absolutely right!" when you point out an error is powered by Anthropic.
#ai #claude

Am I right to assume this "moderation team" is a scam?
update: yep! scam/block/spam
#Mastodon #Spam #Phishing

Analogues of the Milky Way-Sagittarius interaction in the TNG50: effect on the Milky Way
Marcin Semczuk, Teresa Antoja, Alexandra Gir\'on-Soto, Chervin F. P. Laporte
https://arxiv.org/abs/2508.00690

Analogues of the Milky Way-Sagittarius interaction in the TNG50: effect on the Milky Way
The Sagittarius Dwarf Galaxy is undoubtedly being disrupted in the tidal field of the Milky Way. The Milky Way disc is also found to be in a state of disequilibrium. The role of the Sagittarius in driving or contributing to this disequilibrium has been extensively investigated. Most of these studies, however, assume an initially near-equilibrium disc. It was also hypothesized that the passage of Sagittarius could have increased the star-forming activity in the Solar Neighbourhood. We check whet…

So if Mamdani's already Mayor, we can assume the Bedford Ave bike lanes will not be ripped out and we're about to get a whole shitload of new bike & bus lanes, right? Like, starting immediately?
Oh hang on, I'm being told that formerly indicted corrupt-af Eric Adams is still Mayor.

This https://arxiv.org/abs/2505.09400 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Structured coalescents, coagulation equations and multi-type branching processes
Consider a structured population consisting of $d$ colonies, with migration rates that are proportional to a positive parameter $K$. We sample $N_K$ individuals distributed evenly across the $d$ colonies and trace their ancestral lineages back. Within a colony, we assume that pairs of ancestral lineages coalesce at a constant rate, as in a Kingman's coalescent. We identify each ancestral lineage with the set, or block, of its descendants in the sample and we encode the state of the system using…

Exploring the Design Space of Fair Tree Learning Algorithms
Kiara Stempel, Mattia Cerrato, Stefan Kramer
https://arxiv.org/abs/2509.03204 https://arxiv.org…

Exploring the Design Space of Fair Tree Learning Algorithms
Decision trees have been studied extensively in the context of fairness, aiming to maximize prediction performance while ensuring non-discrimination against different groups. Techniques in this space usually focus on imposing constraints at training time, constraining the search space so that solutions which display unacceptable values of relevant metrics are not considered, discarded, or discouraged. If we assume one target variable y and one sensitive attribute s, the design space of tree lea…

Applying Psychometrics to Large Language Model Simulated Populations: Recreating the HEXACO Personality Inventory Experiment with Generative Agents
Sarah Mercer, Daniel P. Martin, Phil Swatton
https://arxiv.org/abs/2508.00742

Applying Psychometrics to Large Language Model Simulated Populations: Recreating the HEXACO Personality Inventory Experiment with Generative Agents
Generative agents powered by Large Language Models demonstrate human-like characteristics through sophisticated natural language interactions. Their ability to assume roles and personalities based on predefined character biographies has positioned them as cost-effective substitutes for human participants in social science research. This paper explores the validity of such persona-based agents in representing human populations; we recreate the HEXACO personality inventory experiment by surveying…

Vacationing at tax-payer expense has prepared Ohio’s least favorite son to assume the role of president of the United States according to him?
Dude, there’s a couch somewhere waiting for you to defile it. Get to it.
#USpol

MobileRAG: A Fast, Memory-Efficient, and Energy-Efficient Method for On-Device RAG
Taehwan Park, Geonho Lee, Min-Soo Kim
https://arxiv.org/abs/2507.01079 h…

MobileRAG: A Fast, Memory-Efficient, and Energy-Efficient Method for On-Device RAG
Retrieval-Augmented Generation (RAG) has proven effective on server infrastructures, but its application on mobile devices is still underexplored due to limited memory and power resources. Existing vector search and RAG solutions largely assume abundant computation resources, making them impractical for on-device scenarios. In this paper, we propose MobileRAG, a fully on-device pipeline that overcomes these limitations by combining a mobile-friendly vector search algorithm, \textit{EcoVector}, …

Habba set to remain top federal prosecutor in New Jersey despite ouster by judges
https://thehill.com/regulation/court-battles/5419066-trump-withdraws-habbas-nomination-for-top-nj-federal-prosecutor-letting-her-assume-role-in-acting-capacity/

A while ago, I asked which of the large projects I'm involved in I should focus on - i.e., what people find interesting.
https://mastodon.social/@CyReVolt/114630312818227294
Only 19 people voted, and I assume biases due to how much/little each one knows. Hard to asse…

I’m going to assume that my expense line for “dream inks” was my phone autocorrecting an attempt at “drinks”, rather than a metaphorical flourish.

Arbitrage with bounded Liquidity
Christoph Schlegel
https://arxiv.org/abs/2507.02027 https://arxiv.org/pdf/2507.02027

Arbitrage with bounded Liquidity
The arbitrage gains or, equivalently, Loss Versus Rebalacing (LVR) for arbitrage between two imperfectly liquid markets is derived. To derive the LVR, I assume a quadratic trading cost to model the cost of trading on the more liquid exchange and discuss to which situations my model arguably applies well (long tail CEX-DEX arbitrage, DEX-DEX arbitrage) and to which not so well (CEX-DEX arbitrage for major pairs). I discuss extension to other cost functions and directions for future research.

Rational Censorship Attack: Breaking Blockchain with a Blackboard
Michelle Yeo, Haoqian Zhang
https://arxiv.org/abs/2507.01453 https://

Rational Censorship Attack: Breaking Blockchain with a Blackboard
Censorship resilience is a fundamental assumption underlying the security of blockchain protocols. Additionally, the analysis of blockchain security from an economic and game theoretic perspective has been growing in popularity in recent years. In this work, we present a surprising rational censorship attack on blockchain censorship resilience when we adopt the analysis of blockchain security from a game theoretic lens and assume all users are rational. In our attack, a colluding group with suf…

I suspect we’re doing something similar to the tank classifier when we ascribe intelligence to AIs: there are patterns such as (for example) grammatical correctness which we •associate• with this abstract thing called “intelligence,” and we thus mis-infer the existence of everything else we associate with the notion of “intelligence” when we see (for example) correct grammar.
Or should we just call the machine intelligent because we classify it as intelligence because our brains, which we assume are intelligent, think it fits the pattern of intelligence? And now you see what the OP means about “begging the question of intelligence.”

A Compartmental Model for Epidemiology with Human Behavior and Stochastic Effects
Christian Parkinson, Weinan Wang
https://arxiv.org/abs/2507.01046 https:/…

A Compartmental Model for Epidemiology with Human Behavior and Stochastic Effects
We propose a compartmental model for epidemiology wherein the population is split into groups with either comply or refuse to comply with protocols designed to slow the spread of a disease. Parallel to the disease spread, we assume that noncompliance with protocols spreads as a social contagion. We begin by deriving the reproductive ratio for a deterministic version of the model, and use this to fully characterize the local stability of disease free equilibrium points. We then append the determ…

Ce sont toujours les mêmes promesses: «l’ordinateur assume les tâches les plus fastidieuses, ce qui permet aux enseignants de se concentrer sur les tâches plus ‹nobles›».
Mais je suis sûr, cette fois le rêve deviendra réalité! L’IA ne sait pas faire l’arithmétique, mais peu importe!
https://www.

DC May Be More Receptive to a Trump Takeover Than Many Assume (David Hogberg/The American Spectator)
https://spectator.org/dc-may-be-more-receptive-to-a-trump-takeover-than-many-assume/
http://www.memeorandum.com/250811/p36#a250811p36

England’s commercial datacentres are using far less water than many assume, according to a new report published by industry group techUK in collaboration with the Environment Agency.
https://www.computing.co.uk/news/2025/england-s-da…

England’s datacentres use minimal water in cooling operations, techUK
England’s commercial datacentres are using far less water than many assume, according to a new report published by industry group techUK in collaboration with the ...

"many eyes find malicious code" in OSS isn't necessarily true, as malicious actors can find ways to circumvent those eyes (and folks may assume someone else is doing the many-eyes work) #GophersUnite

Relation between semigroup growth and resolvent decay for immediately differentiable semigroups
Masashi Wakaiki
https://arxiv.org/abs/2507.01474 https://…

Relation between semigroup growth and resolvent decay for immediately differentiable semigroups
We study rates of growth of $\|AT(t)\|$ as $t \downarrow 0$ for an immediately differentiable $C_0$-semigroup $(T(t))_{t \geq 0}$ with generator $A$. We assume that the resolvent of the semigroup generator decays on the imaginary axis at rates described by functions of positive increase, which enable estimates on scales finer than polynomial ones. First, in the Banach space setting, we present lower and upper bounds for the semigroup growth. Next, we improve the upper estimate for Hil…

There is no ultrastrong coupling with photons
Diego Fern\'andez de la Pradilla, Esteban Moreno, Johannes Feist
https://arxiv.org/abs/2508.00702 https://

There is no ultrastrong coupling with photons
Theoretical accounts of ultrastrongly coupled light-matter systems commonly assume that it arises from the interaction of an emitter with propagating photon modes supported by a structure, understanding photons as the excitations of the transverse electromagnetic field. This description discards the Coulomb interaction between the emitter and structure charges. Here, we show with a general argument based on electromagnetic constraints that the emitter-photon coupling strength is fundamentally l…

Learning to Rank with Variable Result Presentation Lengths
Norman Knyazev, Harrie Oosterhuis
https://arxiv.org/abs/2506.23319 https://

Learning to Rank with Variable Result Presentation Lengths
Learning to Rank (LTR) methods generally assume that each document in a top-K ranking is presented in an equal format. However, previous work has shown that users' perceptions of relevance can be changed by varying presentations, i.e., allocating more vertical space to some documents to provide additional textual or image information. Furthermore, presentation length can also redirect attention, as users are more likely to notice longer presentations when scrolling through results. Deciding on …

Singularity Avoidance in Gravitational Collapse of an Inhomogeneous Fluid in Rastall Gravity
Akbar Jahan, Halime Miraghaei, Shayesteh Ghaffari, Amir Hadi Ziaie
https://arxiv.org/abs/2507.02026

Singularity Avoidance in Gravitational Collapse of an Inhomogeneous Fluid in Rastall Gravity
Various types of inhomogeneous collapse models in general relativity (GR) lead to the formation of spacetime singularities either visible or hidden by a spacetime horizon. Our aim in the present work is to search for nonsingular models in Rastall gravity that arise as the final outcomes of spherically symmetric gravitational collapse of an inhomogeneous matter cloud. We firstly assume linear equations of state (EoS) for radial and tangential pressure profiles, i.e., $p_r=w_rρ$ and $p_θ=w_θρ…

Feature Integration Spaces: Joint Training Reveals Dual Encoding in Neural Network Representations
Omar Claflin
https://arxiv.org/abs/2507.00269 https://…

Feature Integration Spaces: Joint Training Reveals Dual Encoding in Neural Network Representations
Current sparse autoencoder (SAE) approaches to neural network interpretability assume that activations can be decomposed through linear superposition into sparse, interpretable features. Despite high reconstruction fidelity, SAEs consistently fail to eliminate polysemanticity and exhibit pathological behavioral errors. We propose that neural networks encode information in two complementary spaces compressed into the same substrate: feature identity and feature integration. To test this dual enc…

Every day I try and think on a small site or service I could build that would generate enough money to have it be my main source of income. I've failed at this for so long that I'm probably approaching this problem all wrong and I assume I just don't have enough patience to dedicate to long term projects that might never payout. This is why so many of the projects I complete are short term.

#TerryPratchett #ShamelesslyStolenFromTumblr

Blair 'Paddy' Maine was a Lion as well as a war hero #Lions #BritishandIrishLions
Assume Nothing: 1. Let’s rob the bank next door...
Episode webpage:

BBC Radio Ulster - Assume Nothing, SAS: The Real Blair Paddy Mayne, 1. Let’s rob the bank next door...
Floored a coach, shot a springbok, ruled the rugby field: who was the real Blair Mayne?

Thompson Sampling in Function Spaces via Neural Operators
Rafael Oliveira, Xuesong Wang, Kian Ming A. Chai, Edwin V. Bonilla
https://arxiv.org/abs/2506.21894

Thompson Sampling in Function Spaces via Neural Operators
We propose an extension of Thompson sampling to optimization problems over function spaces where the objective is a known functional of an unknown operator's output. We assume that functional evaluations are inexpensive, while queries to the operator (such as running a high-fidelity simulator) are costly. Our algorithm employs a sample-then-optimize approach using neural operator surrogates. This strategy avoids explicit uncertainty quantification by treating trained neural operators as approxi…

Hierarchical assembly impedes the inference of stellar mass growth histories for individual galaxies
R. K. Cochrane
https://arxiv.org/abs/2509.02700 https://

Hierarchical assembly impedes the inference of stellar mass growth histories for individual galaxies
Some massive, quiescent galaxies at z>3 appear to contain considerable numbers of old stars (forming at z>7). Works inferring the star formation histories of at least one such galaxy observed with JWST have suggested that the assembly of so much stellar mass so early may challenge the well-established Cold Dark Matter (CDM) cosmological framework, or else indicate extraordinarily high past star formation efficiencies. However, these studies implicitly assume that all the stars in place at the e…

TIL that the Xilinx PCIe endpoint IP, at least on some Versals (I assume it's likely the same on other parts but I've never looked) has a cursed non-compliant AXI4-Stream interface that uses TKEEP as a *dword* level valid strobe, rather than byte level as the spec requires.
Lovely.
The more I see of Xilinx IP blocks the more my decision to avoid then seems like the right one.

Ce sont toujours les mêmes promesses: «l’ordinateur assume les tâches les plus fastidieuses, ce qui permet aux enseignants de se concentrer sur les tâches plus ‹nobles›».
Mais je suis sûr, cette fois le rêve deviendra réalité! L’IA ne sait pas faire l’arithmétique, mais peu importe!
https://www.

Ce sont toujours les mêmes promesses: «l’ordinateur assume les tâches les plus fastidieuses, ce qui permet aux enseignants de se concentrer sur les tâches plus ‹nobles›».
Mais je suis sûr, cette fois le rêve deviendra réalité! L’IA ne sait pas faire l’arithmétique, mais peu importe!
https://www.

This is quite close to a risk I spoke to someone about a couple of months ago.
Government domains might host documents containing opinions or other third-party information (consultation responses, evidence, etc) - but LLM training ingest may assume the context of the government domain and incorporate it into a government position.
> Google’s AI overview interpreted the PDF document as an official EU stance, blending the information into a response

Overly academic/distanced ethical discussions
Had a weird interaction with @/brainwane@social.coop just now. I misinterpreted one of their posts quoting someone else and I think the combination of that plus an interaction pattern where I'd assume their stance on something and respond critically to that ended up with me getting blocked. I don't have hard feelings exactly, and this post is only partly about this particular person, but I noticed something interesting by the end of the conversation that had been bothering me. They repeatedly criticized me for assuming what their position was, but never actually stated their position. They didn't say: "I'm bothered you assumed my position was X, it's actually Y." They just said "I'm bothered you assumed my position was X, please don't assume my position!" I get that it's annoying to have people respond to a straw man version of your argument, but when I in response asked some direct questions about what their position was, they gave some non-answers and then blocked me. It's entirely possible it's a coincidence, and they just happened to run out of patience on that iteration, but it makes me take their critique of my interactions a bit less seriously. I suspect that they just didn't want to hear what I was saying, while at the same time they wanted to feel as if they were someone who values public critique and open discussion of tricky issues (if anyone reading this post also followed our interaction and has a different opinion of my behavior, I'd be glad to hear it; it's possible In effectively being an asshole here and it would be useful to hear that if so).
In any case, the fact that at the end of the entire discussion, I'm realizing I still don't actually know their position on whether they think the AI use case in question is worthwhile feels odd. They praised the system on several occasions, albeit noting some drawbacks while doing so. They said that the system was possibly changing their anti-AI stance, but then got mad at me for assuming this meant that they thought this use-case was justified. Maybe they just haven't made up their mind yet but didn't want to say that?
Interestingly, in one of their own blog posts that got linked in the discussion, they discuss a different AI system, and despite listing a bunch of concrete harms, conclude that it's okay to use it. That's fine; I don't think *every* use of AI is wrong on balance, but what bothered me was that their post dismissed a number of real ethical issues by saying essentially "I haven't seen calls for a boycott over this issue, so it's not a reason to stop use." That's an extremely socially conformist version of ethics that doesn't sit well with me. The discussion also ended up linking this post: https://chelseatroy.com/2024/08/28/does-ai-benefit-the-world/ which bothered me in a related way. In it, Troy describes classroom teaching techniques for introducing and helping students explore the ethics of AI, and they seem mostly great. They avoid prescribing any particular correct stance, which is important when teaching given the power relationship, and they help students understand the limitations of their perspectives regarding global impacts, which is great. But the overall conclusion of the post is that "nobody is qualified to really judge global impacts, so we should focus on ways to improve outcomes instead of trying to judge them." This bothers me because we actually do have a responsibility to make decisive ethical judgments despite limitations of our perspectives. If we never commit to any ethical judgment against a technology because we think our perspective is too limited to know the true impacts (which I'll concede it invariably is) then we'll have to accept every technology without objection, limiting ourselves to trying to improve their impacts without opposing them. Given who currently controls most of the resources that go into exploration for new technologies, this stance is too permissive. Perhaps if our objection to a technology was absolute and instantly effective, I'd buy the argument that objecting without a deep global view of the long-term risks is dangerous. As things stand, I think that objecting to the development/use of certain technologies in certain contexts is necessary, and although there's a lot of uncertainly, I expect strongly enough that the overall outcomes of objection will be positive that I think it's a good thing to do.
The deeper point here I guess is that this kind of "things are too complicated, let's have a nuanced discussion where we don't come to any conclusions because we see a lot of unknowns along with definite harms" really bothers me.

The non-minimal 3-form cosmology and the rise of the cuscuton
Antonio De Felice, Anamaria Hell
https://arxiv.org/abs/2509.02323 https://arxiv.org/pdf/2509.…

The non-minimal 3-form cosmology and the rise of the cuscuton
We consider the 3-form theory with non-minimal coupling to gravity in an expanding Universe. First, we assume that the background is homogeneous and isotropic, and that the three-form is coupled to both the Ricci scalar and the Ricci tensor. We show that in this case, it propagates three degrees of freedom: a scalar mode and two tensor ones. Then, we consider an anisotropic background that corresponds to a Bianchi Type I Universe, and set the coupling with the Ricci tensor to zero. We show that…

Control-Optimized Deep Reinforcement Learning for Artificially Intelligent Autonomous Systems
Oren Fivel, Matan Rudman, Kobi Cohen
https://arxiv.org/abs/2507.00268

Control-Optimized Deep Reinforcement Learning for Artificially Intelligent Autonomous Systems
Deep reinforcement learning (DRL) has become a powerful tool for complex decision-making in machine learning and AI. However, traditional methods often assume perfect action execution, overlooking the uncertainties and deviations between an agent's selected actions and the actual system response. In real-world applications, such as robotics, mechatronics, and communication networks, execution mismatches arising from system dynamics, hardware constraints, and latency can significantly degrade pe…

As a thought experiment let’s assume “AI” actually worked as advertised.
What would happen if literally every human being told it to “come up and implement a fully automated legal business scheme to make me a profit of a million dollars a day”?

Heavy-tail asymptotics for the length of a busy period in a Generalised Jackson Network
Sergey Foss, Masakiyo Miyazawa, Linglong Yuan
https://arxiv.org/abs/2506.23310

Heavy-tail asymptotics for the length of a busy period in a Generalised Jackson Network
We consider a Generalised Jackson Network with finitely many servers, a renewal input and $i.i.d.$ service times at each queue. We assume the network to be stable and, in addition, the distribution of the inter-arrival times to have unbounded support. This implies that the length of a typical busy period $B$, which is the time between two successive idle periods, is finite a.s. and has a finite mean. We assume that the distributions of the service times with the heaviest tails belong to the c…

Neural Entropy-stable conservative flux form neural networks for learning hyperbolic conservation laws
Lizuo Liu, Lu Zhang, Anne Gelb
https://arxiv.org/abs/2507.01795

Neural Entropy-stable conservative flux form neural networks for learning hyperbolic conservation laws
We propose a neural entropy-stable conservative flux form neural network (NESCFN) for learning hyperbolic conservation laws and their associated entropy functions directly from solution trajectories, without requiring any predefined numerical discretization. While recent neural network architectures have successfully integrated classical numerical principles into learned models, most rely on prior knowledge of the governing equations or assume a fixed discretization. Our approach removes this d…

Role-Aware Language Models for Secure and Contextualized Access Control in Organizations
Saeed Almheiri, Yerulan Kongrat, Adrian Santosh, Ruslan Tasmukhanov, Josemaria Vera, Muhammad Dehan Al Kautsar, Fajri Koto
https://arxiv.org/abs/2507.23465

Role-Aware Language Models for Secure and Contextualized Access Control in Organizations
As large language models (LLMs) are increasingly deployed in enterprise settings, controlling model behavior based on user roles becomes an essential requirement. Existing safety methods typically assume uniform access and focus on preventing harmful or toxic outputs, without addressing role-specific access constraints. In this work, we investigate whether LLMs can be fine-tuned to generate responses that reflect the access privileges associated with different organizational roles. We explore t…

It's always a good day when you have "always comb foo = bar" and using foo instead of bar changes the run time of your simulation by almost 100K clock cycles.
I have to assume this is a Vivado simulator bug present in both 2024.1 and 2025.1, but don't yet have a fully reduced test case other than an always_ff block somehow having input and output changing on the same clock edge.

Parallel Transmission Aware Co-Design: Enhancing Manipulator Performance Through Actuation-Space Optimization
Rohit Kumar, Melya Boukheddimi, Dennis Mronga, Shivesh Kumar, Frank Kirchner
https://arxiv.org/abs/2507.00644

Parallel Transmission Aware Co-Design: Enhancing Manipulator Performance Through Actuation-Space Optimization
In robotics, structural design and behavior optimization have long been considered separate processes, resulting in the development of systems with limited capabilities. Recently, co-design methods have gained popularity, where bi-level formulations are used to simultaneously optimize the robot design and behavior for specific tasks. However, most implementations assume a serial or tree-type model of the robot, overlooking the fact that many robot platforms incorporate parallel mechanisms. In t…

T-Detect: Tail-Aware Statistical Normalization for Robust Detection of Adversarial Machine-Generated Text
Alva West, Luodan Zhang, Liuliu Zhang, Minjun Zhu, Yixuan Weng, Yue Zhang
https://arxiv.org/abs/2507.23577

T-Detect: Tail-Aware Statistical Normalization for Robust Detection of Adversarial Machine-Generated Text
The proliferation of sophisticated text generation models necessitates the development of robust detection methods capable of identifying machine-generated content, particularly text designed to evade detection through adversarial perturbations. Existing zero-shot detectors often rely on statistical measures that implicitly assume Gaussian distributions, a premise that falters when confronted with the heavy-tailed statistical artifacts characteristic of adversarial or non-native English texts. …

Amplitude amplification and estimation require inverses
Ewin Tang, John Wright
https://arxiv.org/abs/2507.23787 https://arxiv.org/pdf/2507.23787

Amplitude amplification and estimation require inverses
We prove that the generic quantum speedups for brute-force search and counting only hold when the process we apply them to can be efficiently inverted. The algorithms speeding up these problems, amplitude amplification and amplitude estimation, assume the ability to apply a state preparation unitary $U$ and its inverse $U^\dagger$; we give problem instances based on trace estimation where no algorithm which uses only $U$ beats the naive, quadratically slower approach. Our proof of this is simpl…

A hyperboloidal method for numerical simulations of multidimensional nonlinear wave equations
Oliver Rinne
https://arxiv.org/abs/2507.00674 https://…

A hyperboloidal method for numerical simulations of multidimensional nonlinear wave equations
We consider the scalar wave equation with power nonlinearity in n+1 dimensions. Unlike previous numerical studies, we go beyond the radial case and do not assume any symmetries for n=3, and we only impose an SO(n-1) symmetry in higher dimensions. Our method is based on a hyperboloidal foliation of Minkowski spacetime and conformal compactification. We focus on the late-time power-law decay (tails) of the solutions and compute decay exponents for different spherical harmonic modes, for subcritic…