Tootfinder

Former $61 million 4-time All-Pro could land with Raiders in free agency https://www.sportingnews.com/us/nfl/las-vegas-raiders/news/former-61-million-4-time-all-pro-could-land-raiders-fre…

Sequence Modeling for Time-Optimal Quadrotor Trajectory Optimization with Sampling-based Robustness Analysis
Katherine Mao, Hongzhan Yu, Ruipeng Zhang, Igor Spasojevic, M Ani Hsieh, Sicun Gao, Vijay Kumar
https://arxiv.org/abs/2506.13915

Sequence Modeling for Time-Optimal Quadrotor Trajectory Optimization with Sampling-based Robustness Analysis
Time-optimal trajectories drive quadrotors to their dynamic limits, but computing such trajectories involves solving non-convex problems via iterative nonlinear optimization, making them prohibitively costly for real-time applications. In this work, we investigate learning-based models that imitate a model-based time-optimal trajectory planner to accelerate trajectory generation. Given a dataset of collision-free geometric paths, we show that modeling architectures can effectively learn the pat…

Long-time storage of a decoherence-free subspace logical qubit in a dual-type quantum memory
Y. L. Xu, L. Zhang, C. Zhang, Y. K. Wu, Y. Y. Chen, C. X. Huang, Z. B. Cui, R. Yao, W. Q. Lian, J. Y. Ma, W. X. Guo, B. X. Qi, P. Y. Hou, Y. F. Pu, Z. C. Zhou, L. He, L. M. Duan
https://arxiv.org/abs/2507.13320

Long-time storage of a decoherence-free subspace logical qubit in a dual-type quantum memory
A quantum memory is an essential element for quantum computation, quantum network and quantum metrology. Previously, a single-qubit quantum memory with a coherence time of about an hour has been realized in a dual-species setup where a coolant ion provides sympathetic cooling for a memory ion of different species. However, the frequent random position hopping between the ions in the room-temperature trap limits the technique there only applicable to single-qubit storage. Here we report a multi-…

🤞 https://www.telegraph.co.uk/business/2025/06/16/britain-to-keep-lights-on-gas-free-power-grid-first-time/

Someone educate the admins at mastodon.social that holocaust and Holocaust are different things. Note the capitalisation.
What israel is perpetrating in Palestine is *a* holocaust, not *the* Holocaust. And yes, it is genocide. And yes, they’re also guilty of close to eight decades of apartheid, ethnic cleansing, and settler colonialism. All these things can be (and are) true at the same time.
Basically, if you’re defending israel in any way, shape, or form right now, you’re the w…

Sable Shade🇦🇺 ☮️4️⃣🇺🇦🇵🇸 (@Sable_Shade@mastodon.social)
Attached: 1 image @aral@mastodon.ar.al And holocaust free, according to mastodon.social #Palestine #GENOCIDE #HOLOCAUST #childMurders #siegheilisrael #abomination #disgrace #evilAsItGets #theHumanVirus #whatsWrongWithUs

Toward Safety-First Human-Like Decision Making for Autonomous Vehicles in Time-Varying Traffic Flow
Xiao Wang, Junru Yu, Jun Huang, Qiong Wu, Ljubo Vacic, Changyin Sun
https://arxiv.org/abs/2506.14502

Toward Safety-First Human-Like Decision Making for Autonomous Vehicles in Time-Varying Traffic Flow
Despite the recent advancements in artificial intelligence technologies have shown great potential in improving transport efficiency and safety, autonomous vehicles(AVs) still face great challenge of driving in time-varying traffic flow, especially in dense and interactive situations. Meanwhile, human have free wills and usually do not make the same decisions even situate in the exactly same scenarios, leading to the data-driven methods suffer from poor migratability and high search cost proble…

Symbolic Control: Unveiling Free Robustness Margins
Youssef Ait Si, Antoine Girard, Adnane Saoud
https://arxiv.org/abs/2507.12339 https://

Symbolic Control: Unveiling Free Robustness Margins
This paper addresses the challenge of ensuring robustness in the presence of system perturbations for symbolic control techniques. Given a discrete-time control system that is related to its symbolic model by an alternating simulation relation. In this paper, we focus on computing the maximum robustness margin under which the symbolic model remains valid for a perturbed-version of the discrete-time control system. We first show that symbolic models are inherently equipped with a certain free ro…

Towards real-time additive-free dopamine detection at $10^{-8}$ mM with hardware accelerated platform integrated on camera
Ning Li, Qizhou Wang, Zhao He, Arturo Burguete-Lopez, Fei Xiang, Andrea Fratalocchi
https://arxiv.org/abs/2506.13447

Towards real-time additive-free dopamine detection at $10^{-8}$ mM with hardware accelerated platform integrated on camera
Tracing physiological neurotransmitters such as dopamine (DA) with detection limits down to $\mathrm{1\times10^{-8}}$ mM is a critical goal in neuroscience for studying brain functions and progressing the understanding of cerebral disease. Addressing this problem requires enhancing the current state-of-the-art additive-free electrochemical workstation methods by over two orders of magnitude. In this work, we implement an ultra-sensitive, additive-free platform exploiting suitably engineered lig…

I am using Desktop Linux¹ for decades because it is woke and gay²!
We want all the gay and merry people playing together :-)
__
¹specifically Debian
²read @… in https://

Unexpected Blessings - Pray As You Go
#dw4jc
Copyright free image via Unsplash:

Unexpected blessings - Pray As You Go
Today is Friday the 18th of July, in the 15th week of Ordinary Time. Jon Guerra sings, ‘I See the Birds’. Can you make these words your own today? Do not be anxious about your life I heard you say to me You dress the lilies You leave ...

To add a single example here (feel free to chime in with your own):
Problem: editing code is sometimes tedious because external APIs require boilerplate.
Solutions:
- Use LLM-generated code. Downsides: energy use, code theft, potential for legal liability, makes mistakes, etc. Upsides: popular among some peers, seems easy to use.
- Pick a better library (not always possible).
- Build internal functions to centralize boilerplate code, then use those (benefits: you get a better understanding of the external API, and a more-unit-testable internal code surface; probably less amortized effort).
- Develop a non-LLM system that actually reasons about code at something like the formal semantics level and suggests boilerplate fill-ins based on rules, while foregrounding which rules it's applying so you can see the logic behind the suggestions (needs research).
Obviously LLM use in coding goes beyond this single issue, but there are similar analyses for each potential use of LLMs in coding. I'm all cases there are:
1. Existing practical solutions that require more effort (or in many cases just seem to but are less-effort when amortized).
2. Near-term researchable solutions that directly address the problem and which would be much more desirable in the long term.
Thus in addition to disastrous LLM effects on the climate, on data laborers, and on the digital commons, they tend to suck us into cheap-seeming but ultimately costly design practices while also crowding out better long-term solutions. Next time someone suggests how useful LLMs are for some task, try asking yourself (or them) what an ideal solution for that task would look like, and whether LLM use moves us closer to or father from a world in which that solution exists.

¿Corrupción? ¿Donde?
@… https://mstdn.social/@Free_Press/114857399291118861

Complete Characterization for Adjustment in Summary Causal Graphs of Time Series
Cl\'ement Yvernes, Emilie Devijver, Eric Gaussier
https://arxiv.org/abs/2506.14534

Complete Characterization for Adjustment in Summary Causal Graphs of Time Series
The identifiability problem for interventions aims at assessing whether the total causal effect can be written with a do-free formula, and thus be estimated from observational data only. We study this problem, considering multiple interventions, in the context of time series when only an abstraction of the true causal graph, in the form of a summary causal graph, is available. We propose in particular both necessary and sufficient conditions for the adjustment criterion, which we show is comple…

Remember #shareware? Like, the demo / trial versions that you could use for free but only for limited time?
Nowadays, a lot of commercial software is like that, except that you pay for being able to use it for a limited time.

Approximating fixed size quantum correlations in polynomial time
Julius A. Zeiss, Gereon Ko{\ss}mann, Omar Fawzi, Mario Berta
https://arxiv.org/abs/2507.12302

Approximating fixed size quantum correlations in polynomial time
We show that $\varepsilon$-additive approximations of the optimal value of fixed-size two-player free games with fixed-dimensional entanglement assistance can be computed in time $\mathrm{poly}(1/\varepsilon)$. This stands in contrast to previous analytic approaches, which focused on scaling with the number of questions and answers, but yielded only strict $\mathrm{exp}(1/\varepsilon)$ guarantees. Our main result is based on novel Bose-symmetric quantum de Finetti theorems tailored for constrai…

\nu-QSSEP: A toy model for entanglement spreading in stochastic diffusive quantum systems
Vincenzo Alba
https://arxiv.org/abs/2507.11674 https://

ν-QSSEP: A toy model for entanglement spreading in stochastic diffusive quantum systems
We investigate out-of-equilibrium entanglement dynamics in a generalization of the so-called $QSSEP$ model, which is a free-fermion chain with stochastic in space and time hopping amplitudes. In our setup, the noisy amplitudes are spatially-modulated satisfying a $ν$-site translation invariance but retaining their randomness in time. For each noise realization, the dynamics preserves Gaussianity, which allows to obtain noise-averaged entanglement-related quantities. The statistics of the stead…

Enhancing Traffic Accident Classifications: Application of NLP Methods for City Safety
Enes \"Ozeren, Alexander Ulbrich, Sascha Filimon, David R\"ugamer, Andreas Bender
https://arxiv.org/abs/2506.12092

Enhancing Traffic Accident Classifications: Application of NLP Methods for City Safety
A comprehensive understanding of traffic accidents is essential for improving city safety and informing policy decisions. In this study, we analyze traffic incidents in Munich to identify patterns and characteristics that distinguish different types of accidents. The dataset consists of both structured tabular features, such as location, time, and weather conditions, as well as unstructured free-text descriptions detailing the circumstances of each accident. Each incident is categorized into on…

“Discord just made an announcement…” where’s an official link then?
“Feel free to copy and paste to other servers.”
No, I do not think I will.
I’ve already seen this song and dance before. Last time it was about VRChat rippers and crashers supposedly planning to do mass raids on a particular day. So far as I have experienced and heard, nothing came of it.
I don’t appreciate the unverified @everyone spam.

Coherent State Path Integral Reveals Unexpected Vacuum Structure in Thermal Field Theory
Rens Roosenstein, Maximilian Attems, W. A. Horowitz
https://arxiv.org/abs/2507.11608

Coherent State Path Integral Reveals Unexpected Vacuum Structure in Thermal Field Theory
We construct the path integral formulation of the partition function for a free scalar thermal field theory using coherent states, first in the ladder operator basis and then in the field operator basis. In so doing, we provide for the first time a mapping in quantum field theory between the field-basis coherent states and ladder-basis coherent states. Using either basis, one finds terms missed in the usual path integral derivation, which we identify as the vacuum energy contribution to the par…

Non-Realizability of the Poisson Boundary
Kunal Chawla, Joshua Frisch
https://arxiv.org/abs/2506.14029 https://arxiv.org/pdf/2506.140…

Non-Realizability of the Poisson Boundary
We show that for any countable group $ G $ equipped with a probability measure $ μ$, there exists a randomized stopping time $ τ$ such that $ (G, μ_τ )$ admits a strictly larger space of bounded harmonic functions than $ (G,μ) $, unless this space is trivial for all measures on $ G $. In particular, we exhibit an irreducible probability measure on the free group $F_2$ such that the Poisson boundary is strictly larger than the geometric boundary equipped with the hitting measure, resolving …

I don't follow this person (below), any ideas why they'd show up in my home feed?
No hashtags.
cc @…
https://lemmy.ca/post/48073052

Free Nanaimo Bars For Everyone Who Contributes to OSM! - Lemmy.ca
Time to build an alternative to Google Maps due their incidents [https://www.cbc.ca/news/canada/british-columbia/why-are-provincial-parks-listed-as-state-parks-on-google-maps-1.7466824l]…

Higher-Oder Splitting Schemes for Fluids with Variable Viscosity
Richard Schussnig, Niklas Fehn, Douglas Ramalho Queiroz Pacheco, Martin Kronbichler
https://arxiv.org/abs/2506.14424

Higher-Oder Splitting Schemes for Fluids with Variable Viscosity
This article investigates matrix-free higher-order discontinuous Galerkin (DG) discretizations of the Navier-Stokes equations for incompressible flows with variable viscosity. The viscosity field may be prescribed analytically or governed by a rheological law, as often found in biomedical or industrial applications. We compare several linearized variants of saddle point block systems and projection-based splitting time integration schemes in terms of their computational performance. Compared to…

Transformed Diffusion-Wave fPINNs: Enhancing Computing Efficiency for PINNs Solving Time-Fractional Diffusion-Wave Equations
Jing Li, Zhengqi Zhang
https://arxiv.org/abs/2506.11518

Transformed Diffusion-Wave fPINNs: Enhancing Computing Efficiency for PINNs Solving Time-Fractional Diffusion-Wave Equations
We propose transformed Diffsuion-Wave fractional Physics-Informed Neural Networks (tDWfPINNs) for efficiently solving time-fractional diffusion-wave equations with fractional order $α\in(1,2)$. Conventional numerical methods for these equations often compromise the mesh-free advantage of Physics-Informed Neural Networks (PINNs) or impose high computational costs when computing fractional derivatives. The proposed method avoids first-order derivative calculations at quadrature points by introdu…

A critical phase transition in bee movement dynamics can be modeled using a 2D cellular automata
Ivan Shpurov, Tom Froese
https://arxiv.org/abs/2507.11592 …

A critical phase transition in bee movement dynamics can be modeled using a 2D cellular automata
The collective behavior of numerous animal species, including insects, exhibits scale-free behavior indicative of the critical (second-order) phase transition. Previous research uncovered such phenomena in the behavior of honeybees, most notably the long-range correlations in space and time. Furthermore, it was demonstrated that the bee activity in the hive manifests the hallmarks of the jamming process. We follow up by presenting a discrete model of the system that faithfully replicates some o…

Free-running vs. Synchronous: Single-Photon Lidar for High-flux 3D Imaging
Ruangrawee Kitichotkul, Shashwath Bharadwaj, Joshua Rapp, Yanting Ma, Alexander Mehta, Vivek K Goyal
https://arxiv.org/abs/2507.09386

Free-running vs. Synchronous: Single-Photon Lidar for High-flux 3D Imaging
Conventional wisdom suggests that single-photon lidar (SPL) should operate in low-light conditions to minimize dead-time effects. Many methods have been developed to mitigate these effects in synchronous SPL systems. However, solutions for free-running SPL remain limited despite the advantage of reduced histogram distortion from dead times. To improve the accuracy of free-running SPL, we propose a computationally efficient joint maximum likelihood estimator of the signal flux, the background fl…

Melting and freezing rates of the radial interior Stefan problem in two dimension
Jeongheon Park
https://arxiv.org/abs/2506.13175 https://

Melting and freezing rates of the radial interior Stefan problem in two dimension
We consider the interior Stefan problem under radial symmetry in two dimension. A water ball surrounded by ice undergoes melting or freezing. We construct a discrete family of global-in-time solutions, both melting and freezing scenarios. The evolution of the free boundary, represented by the radius of the water ball, $λ(t)$ exhibits exponential convergence to a limiting radius value $λ_\infty > 0$, characterized by the asymptotic expression \[ λ(t) = λ_\infty + (1 - λ_\infty)\, e^{-\frac{…

Hey, it’s Monday again. That means we are hosting Tech Pizza Monday again! Same place (Victory Cafe, 440 Bloor St. W.), same time (6 PM), same…actually, the menu changed recently, so the pizza is different than it has been in the past.
Word on the street is that there will definitely be a hardware demo. Cool, right?
#Toronto

Watching the Once Upon a Time... intro hits me with how tiny and temporary my life is compared to the giant sweep of history.
The scenes of people through different ages make me wonder what any of us really mean in the big picture.
The vast flow of time shown reminds me that anarchism is the way forward to break free from repeating cycles of power.
#Anarchism

rt-RISeg: Real-Time Model-Free Robot Interactive Segmentation for Active Instance-Level Object Understanding
Howard H. Qian, Yiting Chen, Gaotian Wang, Podshara Chanrungmaneekul, Kaiyu Hang
https://arxiv.org/abs/2507.10776

rt-RISeg: Real-Time Model-Free Robot Interactive Segmentation for Active Instance-Level Object Understanding
Successful execution of dexterous robotic manipulation tasks in new environments, such as grasping, depends on the ability to proficiently segment unseen objects from the background and other objects. Previous works in unseen object instance segmentation (UOIS) train models on large-scale datasets, which often leads to overfitting on static visual features. This dependency results in poor generalization performance when confronted with out-of-distribution scenarios. To address this limitation, …

Raiders free agent idea adds 5-time Pro Bowl wide receiver instead of relying on rookies https://www.sportingnews.com/us/nfl/las-vegas-raiders/news/raiders-free-agent-idea-amari-cooper…

Justin Simmons has 'no bad blood' with Sean Payton; Free-agent safety hopes to join contender https://www.nfl.com/news/justin-simmons-has-no-bad-blood-with-sean-payton-free-agent-safety-hopes-to-join-contender…

I have my share of issues with Parkrose Permaculture, but she has a lot of things I do strongly agree with. I can't stress enough that you never dehumanize your enemies. You can respond appropriately to violence. You can defend yourself from them by any means necessary. But you do not dehumanize them. You always limit your response to the minimum necessary to defend yourself.
There are a number of former Nazi skins who became antifascists after realizing they were wrong. Those folks tend to be some of the most dedicated because they feel a debt, and some of the most knowledgeable because they were there. Coming out of these types of cults, police included, is hard and takes time. A lot of us don't have the ability to work with them. But some do.
By repeatedly humanizing your opponent, you can break some of them. The #Seattle Police Department was not defunded but saw a massive reduction in numbers because their morale was destroyed. Some people will never change. Some people are broken and feel like they need the power. But if you change one person's mind, even give them something to think about, it's a crack. If even one cop quits, that's one less trained gun pointed at you in the future.
The 18 year old marines and federalized national guard troops out there are literally kids. A lot of them came from poor communities. They are being used in a way they haven't been trained to do, doing things they (should) have been told are not legal. They joined to get out of poverty, to go to college, or to "defend the American people" (regardless of how misguided that is). Few, if any, of them joined to abuse people. They will be especially open to persuasion.
Remind those troops that they are carrying out illegal orders, that they are being called on to violate their oath to protect the constitution, that they are suppressing the free speech of the fellow Americans they swore to defend. Remind them that the people they could be illegally arresting now are just like their parents, their neighbors, their families, the friends who didn't join. Remind them that this is the first step. They will be called on to kill Americans if they let this keep going.
Remind them ICE sleeps in hotels while they sleep on the ground. Remind them that their drunk and incompetent leadership thinks of them as disposable tools. Remind them that some of these people are out protesting *for them* against cuts to the VA and other services. Remind them that the people they're defending refuse to make college free so they can recruit from poor schools. Remind them that they will always be welcome when they're ready to join the side of freedom and justice.
When you dehumanize your enemies, you unify them. When you humanize your enemies, you can divide them. There is no weapon available to us right now so powerful as compassion.
https://youtu.be/YtWOYUDMsBw

Gotta drive 50km with my own car (and fuel) in my (would have been) free time because one of my colleagues used an insurance form in the truck but never replaced it.
So when I needed one (hit a wall at a customer while backing truck into the tight ass space without mirrors - sun kept blinding me), there was none so I now have to go back there to get the paperwork sorted...
Lovely...

Fast MRI of bones in the knee -- An AI-driven reconstruction approach for adiabatic inversion recovery prepared ultra-short echo time sequences
Philipp Hans Nunn, Henner Huflage, Jan-Peter Grunz, Philipp Gruschwitz, Oliver Schad, Thorsten Alexander Bley, Johannes Tran-Gia, Tobias Wech
https://arxiv.org/abs/2506.11771

Fast MRI of bones in the knee -- An AI-driven reconstruction approach for adiabatic inversion recovery prepared ultra-short echo time sequences
Purpose: Inversion recovery prepared ultra-short echo time (IR-UTE)-based MRI enables radiation-free visualization of osseous tissue. However, sufficient signal-to-noise ratio (SNR) can only be obtained with long acquisition times. This study proposes a data-driven approach to reconstruct undersampled IR-UTE knee data, thereby accelerating MR-based 3D imaging of bones. Methods: Data were acquired with a 3D radial IR-UTE pulse sequence, implemented using the open-source framework Pulseq. A denoi…

Operators of Dirac's theory with mass and axial chemical potential
Ion I. Cotaescu
https://arxiv.org/abs/2506.12748 https://arxiv…

Operators of Dirac's theory with mass and axial chemical potential
The Dirac equation with mass and axial chemical potential is solved analytically obtaining the mode spinors and corresponding projection operators giving the spectral representations of the principal conserved operators. In this framework, the odd partner of the Pryce spin operator is defined for the first time showing how these operators may be combined for defining the particle and antiparticle spin and polarization operators of Dirac's theory of massive fermions either in the free case or in…

Meta adds AI video editing tools to the Edits app and Meta AI, letting users edit up to 10 seconds of a video with 50 preset prompts, free for a "limited time" (Emma Roth/The Verge)
https://www.theverge.com/news/685581/meta-video-editing-ai-pre…

Meta’s new AI video tool can put you in a desert (or at least try to)
Meta is rolling out new AI video editing tools that lets you change the theme of your video, change the background, or even transform what you’re wearing.

The Hamiltonian mechanics of exotic particles
Andrea Amoretti, Daniel K. Brattan, Luca Martinoia
https://arxiv.org/abs/2506.13848 https://

The Hamiltonian mechanics of exotic particles
We develop Hamiltonian mechanics on Aristotelian manifolds, which lack local boost symmetry and admit absolute time and space structures. We construct invariant phase space dynamics, define free Hamiltonians, and establish a generalized Liouville theorem. Conserved quantities are identified via lifted Killing vectors. Extending to kinetic theory, we show that the charge current and stress tensor reproduce ideal hydrodynamics at leading order, with the ideal gas law emerging universally. Our fra…

Can we just dispense with grades already? Universities' rush to adopt LLMs, including providing students free access to more advanced versions, has made whatever grades we give wholly suspect (I wouldn't trust a transcript if I was hiring our students). At the same time, my institution at least has given instructors neither guidance nor support in dealing with the fallout. I am more than happy to teach those who want to learn. If the others want to spend their time querying an AI, so…

The pub also had proper old school arcade games -- one Pac Man and one Space Invaders -- set to free play. And there was a young lad, looked maybe 11 or 12, having the time of his life on those.
#RetroGaming #Pacman #SpaceInvaders

Tailoring deep learning for real-time brain-computer interfaces: From offline models to calibration-free online decoding
Martin Wimpff, Jan Zerfowski, Bin Yang
https://arxiv.org/abs/2507.06779

Tailoring deep learning for real-time brain-computer interfaces: From offline models to calibration-free online decoding
Despite the growing success of deep learning (DL) in offline brain-computer interfaces (BCIs), its adoption in real-time applications remains limited due to three primary challenges. First, most DL solutions are designed for offline decoding, making the transition to online decoding unclear. Second, the use of sliding windows in online decoding substantially increases computational complexity. Third, DL models typically require large amounts of training data, which are often scarce in BCI appli…

I'm once again pleased to present "NO ICE just Ice Cream!" at the Enderis Park Concerts On The Green!
📍 Location: Enderis Park, Milwaukee, WI
📅 Date: Thursday, July 10th
🕕 Time: 6-9pm
🎟️ Free and open to all!
I'll be scooping ice cream and giving it away for free! This is how we build community.
#mke

Design and Fabrication Of Multiplexed One-Port SAW Resonators On A Single Chip
Alexandre Westrelin (IEMN), Pierre Debavelear (ICAM), Mathieu Lefevbre (ICAM), Nour Abdallah (IEMN), Kamal Lmimouni (IEMN), Olivier Stienne (IEMN), Bilel Hafsi (IEMN)
https://arxiv.org/abs/2506.13788

Design and Fabrication Of Multiplexed One-Port SAW Resonators On A Single Chip
Shear horizontal surface acoustic wave (SH-SAW) sensors are considered as a viable option for label-free, sensitive, real-time, and cost-effective detection. In this paper, we present the design, the fabrication and the characterization of multiplexed SAW sensors based on a single chip SAW resonator. Operating near the industrial, scientific and medical (ISM) bands, resonators were microfabricated on 42.75{\textdegree} Y (ST) cut Quartz. This substrate was selected due to its traditional associ…

hi yall! weird and arty movies used to be a massive part of my psyche for a brief, intense time when i was younger. but then i had a particularly bad depressive slump that killed the habit. now i wanna get back into it. each day for the next week, im gonna watch one Andrei Tarkovsky film (i found a free collection on archive.org!) and post my initial reaction afterward. i saw one of his movies, Stalker, when i was about 15, and while i liked it, i know i was too young and stupid to actually …

We have made some changes to our pricing in Xogot, and introduced a free trial.
Enjoy!
https://blog.la-terminal.net/xogot-pricing-update-free-trial-lower-prices-and-lifetime-unlock/

Xogot Pricing Update: Free Trial, Lower Prices, and Lifetime Unlock
It’s been just over two weeks since we launched Xogot, bringing the ability to edit and run Godot projects natively on iPad to the Apple App Store. Thousands of developers have downloaded Xogot in that time, and the app has ranked consistently among the top downloads in the App

There are two main reasons I'm not using GrapheneOS. The first is that I've had two Pixels die on me from hardware flaws, and so I think their hardware is complete trash. The second is that every time I see them talking, they're trashing some other free software project or (openish) hardware. Only _their_ platform is secure. I'm getting strong Theo De Raadt vibes from them, which is not the kind of thing I'd want to deal with.

phpc.social is now using Postgres 17.4 as its database (up from 16.8). That was easy and apparently basically downtime-free. Props to Vultr for having a cleaner upgrade experience than the last time I interacted with RDS.
#MastoAdmin

Hot take,
Non-Free Libre Software
🍺 Beer takes time and effort to brew
#agpl #sspl #opensource

Optimal-PhiBE: A PDE-based Model-free framework for Continuous-time Reinforcement Learning
Yuhua Zhu, Yuming Zhang, Haoyu Zhang
https://arxiv.org/abs/2506.05208

Optimal-PhiBE: A PDE-based Model-free framework for Continuous-time Reinforcement Learning
This paper addresses continuous-time reinforcement learning (CTRL) where the system dynamics are governed by a stochastic differential equation but are unknown, and only discrete-time observations are available. Existing approaches face limitations: model-based PDE methods suffer from non-identifiability, while model-free methods based on the optimal Bellman equation (Optimal-BE) are prone to large discretization errors sensitive to both the dynamics and reward structure. To overcome these chal…

After 15 full days in the new house, I think it's time to close off this year-long thread. Some closure on past commentary:
- for the 1st in our lives, we are debt free. Took us nearly 70 years, but we know how incredibly fortunate we are.
- we've dumped our net proceeds from #Downsizing into investments to make sure we aren't tempted to spend it foolishly.
- we kept some funds to fix some issues, including furnace & A/C, water filtration, electrical, eavestroughs, etc.
- my daughter and I are once again fighting galactic aliens online so you can rest easy.
- we've only been to the beach twice, for very short visits, as things have been hectic. Hopefully, we can enjoy that part of our neighborhood as we get into August.
Here is a short video of our 1st walk through just a few minutes before the movers arrived.
#Moving

Wow. Total surprise for me... this game looks amazing... & free to play for Xbox Game Pass!
✅ Clockwork Revolution: inXile on Time Travel, Visual Reactivity, that Foulmouthed Doll, and More — Exclusive Interview - Xbox Wire
https://news.xbox.com/en-us/2025/06/0…

Clockwork Revolution: inXile on Time Travel, Visual Reactivity, that Foulmouthed Doll, and More — Exclusive Interview - Xbox Wire
Clockwork Revolution’s stunning new trailer has a LOT to unwind. In this exclusive interview, inXile developers tell us how they’re crafting a reactive steampunk world, tailor-made for RPG players.

I’ve been eying @… for some time, but I haven’t had time to play with it yet. In case you never heard about OpenRewrite, OpenRewrite takes care of refactoring your codebase to newer language, framework, and paradigm versions.
Using OpenRewrite is pretty straightforward. It already provides a large corpus of existing recipes, some of which are free.…

Optimizing Aperture Geometry in THz-TDS for Accurate Spectroscopy of Quantum Materials
Laura O. Dias, Eduardo D. Stefanato, Nicolas M. Kawahala, Felix G. G. Hernandez
https://arxiv.org/abs/2507.08609

Optimizing Aperture Geometry in THz-TDS for Accurate Spectroscopy of Quantum Materials
Terahertz time-domain spectroscopy (THz-TDS) provides a powerful platform for investigating low-energy excitations in quantum materials. Because these materials are often limited in size, experimental setups typically rely on tightly focused beams and metallic holders with small apertures. In this work, we perform a systematic study of how aperture geometry influences THz signal transmission in a standard free-space configuration. By analyzing time- and frequency-domain data for circular apertu…

Hi friends of research software 👋
The @… is running a free workshop on test-driven development on Monday.
https://events.digital-research.academ

Introduction to Test-Driven Development
Continuously changing requirements lead to rapidly evolving software. While adapting the source code to fit the requirements, we have to ensure that code changes work as intended and don’t break existing features. At the same time the source code needs to stay maintainable and extensible to allow changes for new features in the future. This is where the development approach of Test-Driven Development comes in. It emphasizes writing automated tests before writing the code. The developer...

This https://arxiv.org/abs/2503.22733 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csLG_…

RBFleX-NAS: Training-Free Neural Architecture Search Using Radial Basis Function Kernel and Hyperparameter Detection
Neural Architecture Search (NAS) is an automated technique to design optimal neural network architectures for a specific workload. Conventionally, evaluating candidate networks in NAS involves extensive training, which requires significant time and computational resources. To address this, training-free NAS has been proposed to expedite network evaluation with minimal search time. However, state-of-the-art training-free NAS algorithms struggle to precisely distinguish well-performing networks f…

Speaking up against the actions of the rich and powerful, or openly resisting them, has always come with dangers, can we turn that tide now?
https://euobserver.com/Rule of Law/arefa5c374

Court attacks and defunding NGOs: a growing pattern of silencing protest in Europe
This week, Greenpeace had its first hearing in a Dutch court to use the EU’s new protections against these types of spurious lawsuits to shut down free speech – the first time this EU law will be put into action.

FreeMorph: Tuning-Free Generalized Image Morphing with Diffusion Model
Yukang Cao, Chenyang Si, Jinghao Wang, Ziwei Liu
https://arxiv.org/abs/2507.01953 ht…

FreeMorph: Tuning-Free Generalized Image Morphing with Diffusion Model
We present FreeMorph, the first tuning-free method for image morphing that accommodates inputs with different semantics or layouts. Unlike existing methods that rely on finetuning pre-trained diffusion models and are limited by time constraints and semantic/layout discrepancies, FreeMorph delivers high-fidelity image morphing without requiring per-instance training. Despite their efficiency and potential, tuning-free methods face challenges in maintaining high-quality results due to the non-lin…

Accuracy and Precision of Random Walk with Barrier Model Fitting: Simulations and Applications in Head and Neck Cancers
Jiaren Zou, Yue Cao
https://arxiv.org/abs/2506.12228

Accuracy and Precision of Random Walk with Barrier Model Fitting: Simulations and Applications in Head and Neck Cancers
Promising results have been reported in quantifying microstructural parameters (free diffusivity, cell size, and membrane permeability) in head and neck cancers (HNCs) using time-dependent diffusion MRI fitted to Random Walk with Barrier Model (RWBM). However, model fitting remains challenging due to limited number of measurements, low signal-to-noise ratio and complex nonlinear biophysical model. In this work, we comprehensively investigated and elucidated the dependence of RWBM fitting perfor…

at this point I would just get rid of every #anker power bank regardless of whether it’s been #recalled or not, it’s only a matter of time

More than One Million Anker Power Banks Recalled Due to Fire and Burn Hazards; Manufactured by Anker Innovations
Consumers should immediately stop using the recalled power banks and contact Anker Innovations for instructions on receiving a free replacement power bank. Visit https://www.anker.com/product-recalls to register for the recall. To receive a replacement, consumers will be required to submit a photo of their recalled power bank showing the model number, serial number, their name, the date of the photograph, and the word “recalled” written on the power bank in permanent marker. A purchase rec…

A Real-time 3D Desktop Display
Livio Tenze, Enrique Canessa
https://arxiv.org/abs/2506.08064 https://arxiv.org/pdf/2506.08064

A Real-time 3D Desktop Display
A new extended version of the altiro3D C++ Library -- initially developed to get glass-free holographic displays starting from 2D images -- is here introduced aiming to deal with 3D video streams from either 2D webcam images or flat video files. These streams are processed in real-time to synthesize light-fields (in Native format) and feed realistic 3D experiences. The core function needed to recreate multiviews consists on the use of MiDaS Convolutional Neural Network (CNN), which allows to ex…

From Threat to Tool: Leveraging Refusal-Aware Injection Attacks for Safety Alignment
Kyubyung Chae, Hyunbin Jin, Taesup Kim
https://arxiv.org/abs/2506.10020

From Threat to Tool: Leveraging Refusal-Aware Injection Attacks for Safety Alignment
Safely aligning large language models (LLMs) often demands extensive human-labeled preference data, a process that's both costly and time-consuming. While synthetic data offers a promising alternative, current methods frequently rely on complex iterative prompting or auxiliary models. To address this, we introduce Refusal-Aware Adaptive Injection (RAAI), a straightforward, training-free, and model-agnostic framework that repurposes LLM attack techniques. RAAI works by detecting internal refusal…

A novel approach for classifying Monoamine Neurotransmitters by applying Machine Learning on UV plasmonic-engineered Auto Fluorescence Time Decay Series (AFTDS)
Mohammad Mohammadi, Sima Najafzadehkhoei, George Vega Yon, Yunshan Wang
https://arxiv.org/abs/2507.07227

A novel approach for classifying Monoamine Neurotransmitters by applying Machine Learning on UV plasmonic-engineered Auto Fluorescence Time Decay Series (AFTDS)
This study introduces a hybrid approach integrating advanced plasmonic nanomaterials and machine learning (ML) for high-precision biomolecule detection. We leverage aluminum concave nanocubes (AlCNCs) as an innovative plasmonic substrate to enhance the native fluorescence of neurotransmitters, including dopamine (DA), norepinephrine (NE), and 3,4-Dihydroxyphenylacetic acid (DOPAC). AlCNCs amplify weak fluorescence signals, enabling probe-free, label-free detection and differentiation of these m…

Temporal Conformal Prediction (TCP): A Distribution-Free Statistical and Machine Learning Framework for Adaptive Risk Forecasting
Agnideep Aich, Ashit Baran Aich, Dipak C. Jain
https://arxiv.org/abs/2507.05470

Temporal Conformal Prediction (TCP): A Distribution-Free Statistical and Machine Learning Framework for Adaptive Risk Forecasting
We propose Temporal Conformal Prediction (TCP), a novel framework for constructing prediction intervals in financial time-series with guaranteed finite-sample validity. TCP integrates quantile regression with a conformal calibration layer that adapts online via a decaying learning rate. This hybrid design bridges statistical and machine learning paradigms, enabling TCP to accommodate non-stationarity, volatility clustering, and regime shifts which are hallmarks of real-world asset returns, with…

Automatic differentiation for Lax-Wendroff-type discretizations
Arpit Babbar, Valentin Churavy, Michael Schlottke Lakemper, Hendrik Ranocha
https://arxiv.org/abs/2506.11719

Automatic differentiation for Lax-Wendroff-type discretizations
Lax-Wendroff methods combined with discontinuous Galerkin/flux reconstruction spatial discretization provide a high-order, single-stage, quadrature-free method for solving hyperbolic conservation laws. In this work, we introduce automatic differentiation (AD) in the element-local time average flux computation step (the predictor step) of Lax-Wendroff methods. The application of AD is similar for methods of any order and does not need positivity corrections during the predictor step. This contra…

Vikings' Kevin O'Connell details previous talks with Aaron Rodgers after Steelers sign four-time NFL MVP

https://www.cbssports.com/nfl/news…

Spin Relaxation Mechanisms and Nuclear Spin Entanglement of the V$_B^{-1}$ Center in hBN
Chanaprom Cholsuk, Tobias Vogl, Viktor Iv\'ady
https://arxiv.org/abs/2507.11494

Spin Relaxation Mechanisms and Nuclear Spin Entanglement of the V$_B^{-1}$ Center in hBN
The negatively charged boron vacancy $V_B^-$ defect in hexagonal boron nitride (hBN) has recently emerged as a promising spin qubit for sensing due to its high-temperature spin control and versatile integration into van der Waals structures. While extensive experiments have explored their coherence properties, much less is known about the spin relaxation time $T_1$ and its control-parameter dependence. In this work, we develop a parameter-free spin dynamics model based on the cluster-expansion …

I maintain a heterogeneous MSP environment for backup which consists of a collection of sh scripts (they mostly run on FreeBSD) with (c) notes dating back to 2004, with 5 authors, 4 of whom are no longer my cow-orkers. As the unfortunate 5th, I am still doing tweaks to catch edge & corner cases >20y after the 1st author had the idea that rsync, shell, mt, & standard POSIX tools could be assembled into a decent free backup world.
Use Python. Or Go. Or even Perl.

Subtooting since people in the original thread wanted it to be over, but selfishly tagging @… and @… whose opinions I value...
I think that saying "we are not a supply chain" is exactly what open-source maintainers should be doing right now in response to "open source supply chain security" threads.
I can't claim to be an expert and don't maintain any important FOSS stuff, but I do release almost all of my code under open licenses, and I do use many open source libraries, and I have felt the pain of needing to replace an unmaintained library.
There's a certain small-to-mid-scale class of program, including many open-source libraries, which can be built/maintained by a single person, and which to my mind best operate on a "snake growth" model: incremental changes/fixes, punctuated by periodic "skin-shedding" phases where make rewrites or version updates happen. These projects aren't immortal either: as the whole tech landscape around them changes, they become unnecessary and/or people lose interest, so they go unmaintained and eventually break. Each time one of their dependencies breaks (or has a skin-shedding moment) there's a higher probability that they break or shed too, as maintenance needs shoot up at these junctures. Unless you're a company trying to make money from a single long-lived app, it's actually okay that software churns like this, and if you're a company trying to make money, your priorities absolutely should not factor into any decisions people making FOSS software make: we're trying (and to a huge extent succeeding) to make a better world (and/or just have fun with our own hobbies share that fun with others) that leaves behind the corrosive & planet-destroying plague which is capitalism, and you're trying to personally enrich yourself by embracing that plague. The fact that capitalism is *evil* is not an incidental thing in this discussion.
To make an imperfect analogy, imagine that the peasants of some domain have set up a really-free-market, where they provide each other with free stuff to help each other survive, sometimes doing some barter perhaps but mostly just everyone bringing their surplus. Now imagine the lord of the domain, who is the source of these peasants' immiseration, goes to this market secretly & takes some berries, which he uses as one ingredient in delicious tarts that he then sells for profit. But then the berry-bringer stops showing up to the free market, or starts bringing a different kind of fruit, or even ends up bringing rotten berries by accident. And the lord complains "I have a supply chain problem!" Like, fuck off dude! Your problem is that you *didn't* want to build a supply chain and instead thought you would build your profit-focused business in other people's free stuff. If you were paying the berry-picker, you'd have a supply chain problem, but you weren't, so you really have an "I want more free stuff" problem when you can't be arsed to give away your own stuff for free.
There can be all sorts of problems in the really-free-market, like maybe not enough people bring socks, so the peasants who can't afford socks are going barefoot, and having foot problems, and the peasants put their heads together and see if they can convince someone to start bringing socks, and maybe they can't and things are a bit sad, but the really-free-market was never supposed to solve everyone's problems 100% when they're all still being squeezed dry by their taxes: until they are able to get free of the lord & start building a lovely anarchist society, the really-free-market is a best-effort kind of deal that aims to make things better, and sometimes will fall short. When it becomes the main way goods in society are distributed, and when the people who contribute aren't constantly drained by the feudal yoke, at that point the availability of particular goods is a real problem that needs to be solved, but at that point, it's also much easier to solve. And at *no* point does someone coming into the market to take stuff only to turn around and sell it deserve anything from the market or those contributing to it. They are not a supply chain. They're trying to help each other out, but even then they're doing so freely and without obligation. They might discuss amongst themselves how to better coordinate their mutual aid, but they're not going to end up forcing anyone to bring anything or even expecting that a certain person contribute a certain amount, since the whole point is that the thing is voluntary & free, and they've all got changing life circumstances that affect their contributions. Celebrate whatever shows up at the market, express your desire for things that would be useful, but don't impose a burden on anyone else to bring a specific thing, because otherwise it's fair for them to oppose such a burden on you, and now you two are doing your own barter thing that's outside the parameters of the really-free-market.

Soon, I’ll be throwing away all my desktop computers as well, though I’m keeping my Lenovo Thinkpad around. I hate computers, yet I use them.
To me, computers are just junk nobody asked for. They’re glowing traps that keep us hooked, scrolling and clicking away our time for endless feeds. No matter the OS or hardware, it’s all distraction from reality.
Yes, Linux can free us and all that, and even the hardware can be part of that freedom. But the computers themselves remain a cir…

Latent Motion Profiling for Annotation-free Cardiac Phase Detection in Adult and Fetal Echocardiography Videos
Yingyu Yang, Qianye Yang, Kangning Cui, Can Peng, Elena D'Alberti, Netzahualcoyotl Hernandez-Cruz, Olga Patey, Aris T. Papageorghiou, J. Alison Noble
https://arxiv.org/abs/2507.05154…

Latent Motion Profiling for Annotation-free Cardiac Phase Detection in Adult and Fetal Echocardiography Videos
The identification of cardiac phase is an essential step for analysis and diagnosis of cardiac function. Automatic methods, especially data-driven methods for cardiac phase detection, typically require extensive annotations, which is time-consuming and labor-intensive. In this paper, we present an unsupervised framework for end-diastole (ED) and end-systole (ES) detection through self-supervised learning of latent cardiac motion trajectories from 4-chamber-view echocardiography videos. Our meth…

Free-surface Euler equations with density variations, and shallow-water limit
Th\'eo Fradin
https://arxiv.org/abs/2507.06889 https://arxiv.org/pdf/2507.06889 https://arxiv.org/html/2507.06889
arXiv:2507.06889v1 Announce Type: new
Abstract: In this paper we study the well-posedness in Sobolev spaces of the incompressible Euler equations in an infinite strip delimited from below by a non-flat bottom and from above by a free-surface. We allow the presence of vorticity and density variations, and in these regards the present system is an extension of the well-studied water waves equations. When the bottom is flat and with no density variations (but when the flow is not necessarily irrotational), our study provides an alternative proof of the already known large-time well-posedness results for the water waves equations. Our main contribution is that we allow for the presence of density variations, while also keeping track of the dependency in the shallow water parameter. This allows us to justify the convergence from the free-surface Euler equations towards the non-linear shallow water equations in this setting. Using an already established large time existence result for these latter equations, we also prove the existence of the free-surface Euler equations on a logarithmic time-scale, in a suitable regime.
toXiv_bot_toot

#WritersCoffeeClub 5/27. What is a ‘load-bearing’ part of your non-writerly life that makes writing possible for you?
I have a limited amount of energy and my family comes first, and then obligations that I have to take care of. Work is necessary, not optional.
The time I have left is my spare time. We all have that, an hour or two when we're free.
During that time,…

Here's an example of a company trying to destroy a product that it only recently acquired.
VMware, the company, was acquired by Broadcom.
VMware products have always been a pain-in-the-ass to operate, partially because of a marketing brain-crash that named everything "vsphere" this and "vsphere" that.
We used only the once free Esxi hypervisor, but we needed several, also at the time free, "vsphere" pieces to manage it.
But Broadcom p…

VMware perpetual license holder receives audit letter from Broadcom
“Our management thought it was a bluff…”…

Pricing and hedging the prepayment option of mortgages under stochastic housing market activity
Leonardo Perotti, Lech A. Grzelak, Cornelis W. Oosterlee
https://arxiv.org/abs/2507.08641

Pricing and hedging the prepayment option of mortgages under stochastic housing market activity
Prepayment risk embedded in fixed-rate mortgages forms a significant fraction of a financial institution's exposure. The embedded prepayment option bears the same interest rate risk as an exotic interest rate swap with a suitable stochastic notional. Focusing on penalty-free prepayment because of the contract owner's relocation to a new house, we model the prepayment option value as an European-type interest rate receiver swaption with stochastic maturity matching the stochastic time of relocat…

Bounded confidence dynamics generates opinion cascades on a growing scale-free network
David Hernandez, Guillaume Deffuant, Yerali Gandica
https://arxiv.org/abs/2506.02669

Bounded confidence dynamics generates opinion cascades on a growing scale-free network
We study the pairwise bounded confidence model on scale-free networks where new agents regularly arrive over time. The probability that arriving agents form links to preexisting ones depends on both agent degree and opinion proximity. In parameter value ranges where both factors impact the link choice, a new phenomenon is observed. Minor clusters continuously form on the periphery of the opinion space and remain stable for a time, before suddenly merging with a major cluster in the network. We …

Verification of the Timing System for the X-ray Imaging and Spectroscopy Mission in the GPS Unsynchronized Mode
Megumi Shidatsu, Yukikatsu Terada, Takashi Kominato, So Kato, Ryohei Sato, Minami Sakama, Takumi Shioiri, Yugo Motogami, Yuuki Niida, Chulsoo Kang, Toshihiro Takagi, Taichi Nakamoto, Chikara Natsukari, Makoto S. Tashiro, Kenichi Toda, Hironori Maejima, Shin Watanabe, Ryo Iizuka, Rie Sato, Chris Baluta, Katsuhiro Hayashi, Tessei Yoshida, Shoji Ogawa, Yoshiaki Kanemaru, Kotaro Fukushima, Akio Hoshino, Hiromitsu Takahashi, Masayoshi Nobukawa, Tsunefumi Mizuno, Kazuhiro Nakazawa, Shinichiro Uno, Ken Ebisawa, Satoshi Eguchi, Satoru Katsuda, Aya Kubota, Naomi Ota, Atsushi Tanimoto, Yuichi Terashima, Yohko Tsuboi, Yuusuke Uchida, Hideki Uchiyama, Shigeo Yamauchi, Tomokage Yoneyama, Satoshi Yamada, Nagomi Uchida, Matt Holland, Michael Loewenstein, Tahir Yaqoob, Eric D. Miller, Robert S. Hill, Efrain C. Perez-Solis, Morgan D. Waddy, Mark Mekosh, Joseph B. Fox, Isabella S. Brewer, Emily Aldoretta, Koji Mukai, Kenji Hamaguchi, Francois Mernier, Anna Ogorzalek, Katja Pottschmidt, Mihoko Yukita
#toXiv_bot_toot

Real-Time Graph-based Point Cloud Networks on FPGAs via Stall-Free Deep Pipelining
Marc Neu, Isabel Haide, Timo Justinger, Till R\"adler, Valdrin Dajaku, Torben Ferber, J\"urgen Becker
https://arxiv.org/abs/2507.05099

Real-Time Graph-based Point Cloud Networks on FPGAs via Stall-Free Deep Pipelining
Graph-based Point Cloud Networks (PCNs) are powerful tools for processing sparse sensor data with irregular geometries, as found in high-energy physics detectors. However, deploying models in such environments remains challenging due to stringent real-time requirements for both latency, and throughput. In this work, we present a deeply pipelined dataflow architecture for executing graph-based PCNs on FPGAs. Our method supports efficient processing of dynamic, sparse point clouds while meeting h…

Tight Bound for Quantum Unitary Time-Reversal
Kean Chen, Nengkun Yu, Zhicheng Zhang
https://arxiv.org/abs/2507.05736 https://arxiv.or…

Tight Bound for Quantum Unitary Time-Reversal
Time-reversal of unitary evolution is fundamental in quantum information processing. Many scenarios, particularly those in quantum learning and metrology, assume free access to the time-reverse of an unknown unitary. In this paper, we settle the query complexity of the unitary time-reversal task: approximately implementing $U^{-1}$ given only black-box access to an unknown $d$-dimensional unitary $U$. We provide a tight query lower bound $Ω((1-ε)d^2)$ for the unitary time-reversal to within d…

The value of the free coffee provided by our school for faculty and staff cannot be overstated.
Coffee is LIFE.
https://counterculturecoffee.com/products/fast-forward-12oz-bag
(And coffee time provides regular opportunities to meet and visit with our collea…

Fast Forward

A Model-Free Extremum Seeking Controller with Application to Tracking a Nonlinear Chemical Reaction
Alexander Zuyev, Victoria Grushkovska
https://arxiv.org/abs/2507.07749

A Model-Free Extremum Seeking Controller with Application to Tracking a Nonlinear Chemical Reaction
In this paper, we develop the extremum-seeking approach to generate admissible trajectories in a neighborhood of a given reference curve in the state space. The cost function of the problem represents the distance between the current system state and the reference curve, which is parameterized as a function of time. Such reference curves naturally arise as optimal trajectories in isoperimetric optimization problems for nonlinear chemical reactions, where the objective is to maximize the average…

A Unified Theory of Compositionality, Modularity, and Interpretability in Markov Decision Processes
Thomas J. Ringstrom, Paul R. Schrater
https://arxiv.org/abs/2506.09499

A Unified Theory of Compositionality, Modularity, and Interpretability in Markov Decision Processes
We introduce Option Kernel Bellman Equations (OKBEs) for a new reward-free Markov Decision Process. Rather than a value function, OKBEs directly construct and optimize a predictive map called a state-time option kernel (STOK) to maximize the probability of completing a goal while avoiding constraint violations. STOKs are compositional, modular, and interpretable initiation-to-termination transition kernels for policies in the Options Framework of Reinforcement Learning. This means: 1) STOKs can…

No time to train! Training-Free Reference-Based Instance Segmentation
Miguel Espinosa, Chenhongyi Yang, Linus Ericsson, Steven McDonagh, Elliot J. Crowley
https://arxiv.org/abs/2507.02798

No time to train! Training-Free Reference-Based Instance Segmentation
The performance of image segmentation models has historically been constrained by the high cost of collecting large-scale annotated data. The Segment Anything Model (SAM) alleviates this original problem through a promptable, semantics-agnostic, segmentation paradigm and yet still requires manual visual-prompts or complex domain-dependent prompt-generation rules to process a new image. Towards reducing this new burden, our work investigates the task of object segmentation when provided with, al…

Deep reinforcement learning-based joint real-time energy scheduling for green buildings with heterogeneous battery energy storage devices
Chi Liu, Zhezhuang Xu, Jiawei Zhou, Yazhou Yuan, Kai Ma, Meng Yuan
https://arxiv.org/abs/2506.06824

Deep reinforcement learning-based joint real-time energy scheduling for green buildings with heterogeneous battery energy storage devices
Green buildings (GBs) with renewable energy and building energy management systems (BEMS) enable efficient energy use and support sustainable development. Electric vehicles (EVs), as flexible storage resources, enhance system flexibility when integrated with stationary energy storage systems (ESS) for real-time scheduling. However, differing degradation and operational characteristics of ESS and EVs complicate scheduling strategies. This paper proposes a model-free deep reinforcement learning (…

Enhancing Ultrasound Molecular Imaging: Toward Real-Time RPCA-Based Filtering to Differentiate Bound and Free Microbubbles
Hoda S. Hashemi, Dongwoon Hyun, Nathan Nguyen, Jihye Baek, Arutselvan Natarajan, Farbod Tabesh, Andrew Andrzejek, Ramasamy Paulmurugan, Jeremy J. Dahl
https://arxiv.org/abs/2506.10257

Enhancing Ultrasound Molecular Imaging: Toward Real-Time RPCA-Based Filtering to Differentiate Bound and Free Microbubbles
Ultrasound molecular imaging (UMI) is an advanced imaging modality that shows promise in detecting cancer at early stages. It uses microbubbles as contrast agents, which are functionalized to bind to cancer biomarkers overexpressed on endothelial cells. A major challenge in UMI is isolating bound microbubble signal, which represents the molecular imaging signal, from that of free-floating microbubbles, which is considered background noise. In this work, we propose a fast GPU-based method using …

Long; central Massachusetts colonial history
Today on a whim I visited a site in Massachusetts marked as "Huguenot Fort Ruins" on OpenStreetMaps. I drove out with my 4-year-old through increasingly rural central Massachusetts forests & fields to end up on a narrow street near the top of a hill beside a small field. The neighboring houses had huge lawns, some with tractors.
Appropriately for this day and this moment in history, the history of the site turns out to be a microcosm of America. Across the field beyond a cross-shaped stone memorial stood an info board with a few diagrams and some text. The text of the main sign (including typos/misspellings) read:
"""
Town Is Formed
Early in the 1680's, interest began to generate to develop a town in the area west of Natick in the south central part of the Commonwealth that would be suitable for a settlement. A Mr. Hugh Campbell, a Scotch merchant of Boston petitioned the court for land for a colony. At about the same time, Joseph Dudley and William Stoughton also were desirous of obtaining land for a settlement. A claim was made for all lands west of the Blackstone River to the southern land of Massachusetts to a point northerly of the Springfield Road then running southwesterly until it joined the southern line of Massachusetts.
Associated with Dudley and Stoughton was Robert Thompson of London, England, Dr. Daniel Cox and John Blackwell, both of London and Thomas Freak of Hannington, Wiltshire, as proprietors. A stipulation in the acquisition of this land being that within four years thirty families and an orthodox minister settle in the area. An extension of this stipulation was granted at the end of the four years when no group large enough seemed to be willing to take up the opportunity.
In 1686, Robert Thompson met Gabriel Bernor and learned that he was seeking an area where his countrymen, who had fled their native France because of the Edict of Nantes, were desirous of a place to live. Their main concern was to settle in a place that would allow them freedom of worship. New Oxford, as it was the so-named, at that time included the larger part of Charlton, one-fourth of Auburn, one-fifth of Dudley and several square miles of the northeast portion of Southbridge as well as the easterly ares now known as Webster.
Joseph Dudley's assessment that the area was capable of a good settlement probably was based on the idea of the meadows already established along with the plains, ponds, brooks and rivers. Meadows were a necessity as they provided hay for animal feed and other uses by the settlers. The French River tributary books and streams provided a good source for fishing and hunting. There were open areas on the plains as customarily in November of each year, the Indians burnt over areas to keep them free of underwood and brush. It appeared then that this area was ready for settling.
The first seventy-five years of the settling of the Town of Oxford originally known as Manchaug, embraced three different cultures. The Indians were known to be here about 1656 when the Missionary, John Eliott and his partner Daniel Gookin visited in the praying towns. Thirty years later, in 1686, the Huguenots walked here from Boston under the guidance of their leader Isaac Bertrand DuTuffeau. The Huguenot's that arrived were not peasants, but were acknowledged to be the best Agriculturist, Wine Growers, Merchant's, and Manufacter's in France. There were 30 families consisting of 52 people. At the time of their first departure (10 years), due to Indian insurrection, there were 80 people in the group, and near their Meetinghouse/Church was a Cemetery that held 20 bodies. In 1699, 8 to 10 familie's made a second attempt to re-settle, failing after only four years, with the village being completely abandoned in 1704.
The English colonist made their way here in 1713 and established what has become a permanent settlement.
"""
All that was left of the fort was a crumbling stone wall that would have been the base of a higher wooden wall according to a picture of a model (I didn't think to get a shot of that myself). Only trees and brush remain where the multi-story main wooden building was.
This story has so many echoes in the present:
- The rich colonialists from Boston & London agree to settle the land, buying/taking land "rights" from the colonial British court that claimed jurisdiction without actually having control of the land. Whether the sponsors ever actually visited the land themselves I don't know. They surely profited somehow, whether from selling on the land rights later or collecting taxes/rent or whatever, by they needed poor laborers to actually do the work of developing the land (& driving out the original inhabitants, who had no say in the machinations of the Boston court).
- The land deal was on condition that there capital-holders who stood to profit would find settlers to actually do the work of colonizing. The British crown wanted more territory to be controlled in practice not just in theory, but they weren't going to be the ones to do the hard work.
- The capital-holders actually failed to find enough poor suckers to do their dirty work for 4 years, until the Huguenots, fleeing religious persecution in France, were desperate enough to accept their terms.
- Of course, the land was only so ripe for settlement because of careful tending over centuries by the natives who were eventually driven off, and whose land management practices are abandoned today. Given the mention of praying towns (& dates), this was after King Phillip's war, which resulted in at least some forced resettlement of native tribes around the area, but the descendants of those "Indians" mentioned in this sign are still around. For example, this is the site of one local band of Nipmuck, whose namesake lake is about 5 miles south of the fort site: #LandBack.

Training-free Generation of Temporally Consistent Rewards from VLMs
Yinuo Zhao, Jiale Yuan, Zhiyuan Xu, Xiaoshuai Hao, Xinyi Zhang, Kun Wu, Zhengping Che, Chi Harold Liu, Jian Tang
https://arxiv.org/abs/2507.04789

Training-free Generation of Temporally Consistent Rewards from VLMs
Recent advances in vision-language models (VLMs) have significantly improved performance in embodied tasks such as goal decomposition and visual comprehension. However, providing accurate rewards for robotic manipulation without fine-tuning VLMs remains challenging due to the absence of domain-specific robotic knowledge in pre-trained datasets and high computational costs that hinder real-time applicability. To address this, we propose $\mathrm{T}^2$-VLM, a novel training-free, temporally consi…

High Resolution Isotropic 3D Cine imaging with Automated Segmentation using Concatenated 2D Real-time Imaging and Deep Learning
Mark Wrobel (UCL Centre for Translational Cardiovascular Imaging, University College London), Michele Pascale (UCL Centre for Translational Cardiovascular Imaging, University College London), Tina Yao (UCL Centre for Translational Cardiovascular Imaging, University College London), Ruaraidh Campbell (UCL Centre for Translational Cardiovascular Imaging, Univers…

High Resolution Isotropic 3D Cine imaging with Automated Segmentation using Concatenated 2D Real-time Imaging and Deep Learning
Background: Conventional cardiovascular magnetic resonance (CMR) in paediatric and congenital heart disease uses 2D, breath-hold, balanced steady state free precession (bSSFP) cine imaging for assessment of function and cardiac-gated, respiratory-navigated, static 3D bSSFP whole-heart imaging for anatomical assessment. Our aim is to concatenate a stack 2D free-breathing real-time cines and use Deep Learning (DL) to create an isotropic a fully segmented 3D cine dataset from these images. Methods…

This https://arxiv.org/abs/2505.18570 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csLG_…

VISTA: Vision-Language Inference for Training-Free Stock Time-Series Analysis
Stock price prediction remains a complex and high-stakes task in financial analysis, traditionally addressed using statistical models or, more recently, language models. In this work, we introduce VISTA (Vision-Language Inference for Stock Time-series Analysis), a novel, training-free framework that leverages Vision-Language Models (VLMs) for multi-modal stock forecasting. VISTA prompts a VLM with both textual representations of historical stock prices and their corresponding line charts to pre…

#WritersCoffeeClub 5/27. What is a ‘load-bearing’ part of your non-writerly life that makes writing possible for you?
I have a limited amount of energy and my family comes first, and then obligations that I have to take care of. Work is necessary, not optional.
The time I have left is my spare time. We all have that, an hour or two when we're free.
During that time,…

Optimal Consumption-Investment for General Utility with a Drawdown Constraint over a Finite-Time Horizon
Chonghu Guan, Xinfeng Gu, Wenhao Zhang, Xun Li
https://arxiv.org/abs/2507.05115

Optimal Consumption-Investment for General Utility with a Drawdown Constraint over a Finite-Time Horizon
We study an optimal investment and consumption problem over a finite-time horizon, in which an individual invests in a risk-free asset and a risky asset, and evaluate utility using a general utility function that exhibits loss aversion with respect to the historical maximum of consumption. Motivated by behavioral finance and habit formation theory, we model the agent's preference for maintaining a standard of living by imposing constraints on declines from the peak consumption level. To solve t…

Like other large #FreeSoftware projects, #Gentoo developers have varying degrees of activity. There are some people who dedicate a lot of their free time to Gentoo, maintain hundreds of packages, participate in multiple areas. Then, there are people with narrower interests, lower commit counts, but they are still putting an effort and making Gentoo a better distribution — and that matters. But then, there is the tail.
There is a few of developers whose main talents seem to be 1) finding packages that require absolutely minimal maintenance effort, and 2) justifying their developer status with long essays. I mean, this is getting beyond absurd. It is not just "my packages are all up-to-date". It is not even "my packages require very low maintenance, that's why I'm not doing much". It is literally "I deliberately choose low-maintenance packages, so I don't have to do anything". But of course, all these people definitely need commit access to Gentoo, and show off their Gentoo developer badges, and it's *so damn unfair*.
And in the meantime, other developers are overburdened, and getting burned out. And they step down from more things. And who takes these things over? Of course, not the developers who just admitted to not having much to do…

An inverse-free fixed-time stable dynamical system and its forward-Euler discretization for solving generalized absolute value equations
Xuehua Li, Linjie Chen, Dongmei Yu, Cairong Chen, Deren Han
https://arxiv.org/abs/2507.00531

An inverse-free fixed-time stable dynamical system and its forward-Euler discretization for solving generalized absolute value equations
An inverse-free dynamical system is proposed to solve the generalized absolute value equation (GAVE) within a fixed time, where the time of convergence is finite and is uniformly bounded for all initial points. Moreover, an iterative method obtained by using the forward-Euler discretization of the proposed dynamic model are developed and sufficient conditions which guarantee that the discrete iteration globally converge to an arbitrarily small neighborhood of the unique solution of GAVE within …

BoxFusion: Reconstruction-Free Open-Vocabulary 3D Object Detection via Real-Time Multi-View Box Fusion
Yuqing Lan, Chenyang Zhu, Zhirui Gao, Jiazhao Zhang, Yihan Cao, Renjiao Yi, Yijie Wang, Kai Xu
https://arxiv.org/abs/2506.15610

BoxFusion: Reconstruction-Free Open-Vocabulary 3D Object Detection via Real-Time Multi-View Box Fusion
Open-vocabulary 3D object detection has gained significant interest due to its critical applications in autonomous driving and embodied AI. Existing detection methods, whether offline or online, typically rely on dense point cloud reconstruction, which imposes substantial computational overhead and memory constraints, hindering real-time deployment in downstream tasks. To address this, we propose a novel reconstruction-free online framework tailored for memory-efficient and real-time 3D detecti…

It’s truly remarkable that we exist at all. Each of us breaks free from the chains of history and authority to experience life anew. Today, countless souls will awaken to their first love, their first union, or the birth of new life. Others will face heartbreak or part ways.
This moment, this very act of being alive and conscious, is a quiet act of rebellion against the forces that seek to suppress our humanity. To exist freely for the first time is the most radical and beautiful thing…

SCREP: Scene Coordinate Regression and Evidential Learning-based Perception-Aware Trajectory Generation
Juyeop Han, Lukas Lao Beyer, Guilherme V. Cavalheiro, Sertac Karaman
https://arxiv.org/abs/2507.07467

SCREP: Scene Coordinate Regression and Evidential Learning-based Perception-Aware Trajectory Generation
Autonomous flight in GPS denied indoor spaces requires trajectories that keep visual localization error tightly bounded across varied missions. Whereas visual inertial odometry (VIO) accumulates drift over time, scene coordinate regression (SCR) yields drift-free, high accuracy absolute pose estimation. We present a perception-aware framework that couples an evidential learning-based SCR pose estimator with a receding horizon trajectory optimizer. The optimizer steers the onboard camera toward …

This https://arxiv.org/abs/2505.17155 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csLG_…

TrimR: Verifier-based Training-Free Thinking Compression for Efficient Test-Time Scaling
Large Reasoning Models (LRMs) demonstrate exceptional capability in tackling complex mathematical, logical, and coding tasks by leveraging extended Chain-of-Thought (CoT) reasoning. Test-time scaling methods, such as prolonging CoT with explicit token-level exploration, can push LRMs' accuracy boundaries, but they incur significant decoding overhead. A key inefficiency source is LRMs often generate redundant thinking CoTs, which demonstrate clear structured overthinking and underthinking patter…

Learning-based primal-dual optimal control of discrete-time stochastic systems with multiplicative noise
Xiushan Jiang, Weihai Zhang
https://arxiv.org/abs/2506.02613

Learning-based primal-dual optimal control of discrete-time stochastic systems with multiplicative noise
Reinforcement learning (RL) is an effective approach for solving optimal control problems without knowing the exact information of the system model. However, the classical Q-learning method, a model-free RL algorithm, has its limitations, such as lack of strict theoretical analysis and the need for artificial disturbances during implementation. This paper explores the partially model-free stochastic linear quadratic regulator (SLQR) problem for a system with multiplicative noise from the primal…

Ghost-Free Quantisation of Higher Time-Derivative Theories via Non-Unitary Similarity Transformations
Andreas Fring, Takano Taira, Bethan Turner
https://arxiv.org/abs/2506.21400

Ghost-Free Quantisation of Higher Time-Derivative Theories via Non-Unitary Similarity Transformations
We address the long-standing ``ghost problem" in higher time-derivative theories (HTDTs), where quantisation typically yields sectors with either unbounded spectra or non-normalisable eigenstates; both rendering the theory unphysical. We propose a novel method that preserves the bounded nature of the spectrum in one particular sector while restoring normalisability by employing a non-unitary similarity transformation. Inspired by techniques from pseudo/quasi-Hermitian PT-symmetric quantum mecha…

Near Time-Optimal Hybrid Motion Planning for Timber Cranes
Marc-Philip Ecker, Bernhard Bischof, Minh Nhat Vu, Christoph Fr\"ohlich, Tobias Gl\"uck, Wolfgang Kemmetm\"uller
https://arxiv.org/abs/2506.20314

Near Time-Optimal Hybrid Motion Planning for Timber Cranes
Efficient, collision-free motion planning is essential for automating large-scale manipulators like timber cranes. They come with unique challenges such as hydraulic actuation constraints and passive joints-factors that are seldom addressed by current motion planning methods. This paper introduces a novel approach for time-optimal, collision-free hybrid motion planning for a hydraulically actuated timber crane with passive joints. We enhance the via-point-based stochastic trajectory optimizatio…