Tootfinder

Recent advances in arrow relations and traces of sets
Mingze Li, Jie Ma, Mingyuan Rong
https://arxiv.org/abs/2507.23375 https://arxiv.org/pdf/2507.23375

Recent advances in arrow relations and traces of sets
The arrow relation, a central concept in extremal set theory, captures quantitative relationships between families of sets and their traces. Formally, the arrow relation $(n, m) \rightarrow (a, b)$ signifies that for any family $\mathcal{F} \subseteq 2^{[n]}$ with $|\mathcal{F}| \geqslant m$, there exists an $a$-element subset $T \subseteq [n]$ such that the trace $\mathcal{F}_{|T} = \{ F \cap T : F \in \mathcal{F} \}$ contains at least $b$ distinct sets. This survey highlights r…

Case study of anti-marketing in the A.I. Age: The "summaries" that google puts at the top of most searches are such trash that you probably haven't noticed that the "AI Mode" you get clicking on this button is astonishingly good: whenever I ask "I read a paper that came to such and such a conclusion" it gives me that paper within the first three results.

#ShamelesslyStolenFromSomewhereElseOnTheInternetHonestlyICantKeepTrackOfThisStuffAnymore

Replaced article(s) found for math.CT. https://arxiv.org/list/math.CT/new
[1/1]:
- Arrow algebras
Benno van den Berg, Marcus Briet
https://

The inner working of parquette/arrow data in R: #rstats

Unpacking Arrow Datasets – Notes from a data witch
A comment on how Datasets work in Apache Arrow. I’m not really sure who the audience for this one. Am I just talking to myself? Probably.

Lenovo stellt seine Business-Thinkpads mit Arrow Lake und Blackwell vor
Intels CPU-Generation Arrow Lake zieht in Lenovos Thinkpads ein. Das Thinkpad X9 erscheint zudem mit einem weißen Gehäuse.
http…

At the #SDSL dev day today, experimenting with #pyogrio to address #Trajectools issues. Thanks @…

Test using Arrow for QGIS to geopandas conversion
In an attempt to speed-up (and make the conversion more robust, eg regarding datetime/timezone conversion and null values (https://codeberg.org/movingpandas/trajectools/issues/93)), we can try to use Arrow. Since QGIS currently does not support exporting a layer to Arrow, here is a test workaroun...

Intel says 18A-based Panther Lake chips can deliver 50% more performance at similar power to Lunar Lake chips, details RibbonFET efficiency gains, and more (Jeffrey Kampman/Tom's Hardware)
https://www.

Intel takes the wraps off Panther Lake — first 18A client processor brings the best of Lunar Lake and Arrow Lake together in one package
Panther Lake brings the power efficiency and graphics performance of Lunar Lake and the platform flexibility of Arrow Lake all together on one SoC

🤘 Design and Implementation of a 3D Korean Sign Language Learning System Using Pseudo-Hologram
#ui

Is it talent?
https://www.instagram.com/reel/DQM0-w2jEOd/?utm_source=ig_web_copy_link&igsh=NTc4MTIwNjQ2YQ==

Duaa Izzidien - Visual Storyteller & Artist on Instagram: "I had far too much fun creating this reel and couldn’t bring myself to delete any of it to make it shorter and more algorithm friendly 🙈 If you watched it all the way to the end - well done! You’ve just demonstrated the very thing the reel is about - showing up is the only talent that matters. My arrows don’t always hit the target. My paintings don’t always turn out how I planned. And honestly? Life rarely goes the way I intend. But really that isn’t what matters. In Islam we say that actions are by intentions and that sometimes means letting go of controlling our outcomes. We can control our intentions, our effort, showing up - but we have to remember that the result doesn’t actually come from those actions. Sometimes the arrow misses because there’s a better lesson waiting or perhaps it’s to remind you to stay humble and remember that ‘you’ are not the architect of your success. Sometimes the painting goes “wrong” because it’s becoming something more beautiful than you imagined. Sometimes life doesn’t work out the way you planned because there’s something different, better, round the corner for you. A huge thank you to @thabitoon_archers and @mamluk.academy for teaching me. You’ve taught me far more than just archery - you’ve taught me a rich history and life lessons that bring peace. (any mistakes in my form are entirely mine!). Want to learn how to use art as a tool for trusting and letting go of control? DM me ‘CREATE’ and I’ll show you these techniques. #showingisenough #trusttheprocess #archery #archerygirl #traditionalarchery #archerylife #overwhelm #personalgrowth #innerstrength #growthmindset #breakthrough #findingmyself #resilience #transformation #letgoofcontrol"
24K likes, 763 comments - duaaizzidien on October 24, 2025: "I had far too much fun creating this reel and couldn’t bring myself to delete any of it to make it shorter and more algorithm friendly 🙈 If you watched it all the way to the end - well done! You’ve just demonstrated the very thing the reel is about - showing up is the only talent that matters. My arrows don’t always hit the target. My paintings don’t always turn out how I planned. And honestly? Life rarely goes the way I …

Probably the best thing I did this week was make the OpenAI anus / Atlass butt plug logo into a Goatse gag.
But then Microsoft comes along and outdoes me with this vitamin-yellow-tinted puddle of spunk and I am just… wow.
Well done, Microsoft.

Ballot proposal taxes 5% of California billionaires' net worth to fund health care (Cole Lauterbach/Straight Arrow News)
https://san.com/cc/ballot-proposal-taxes-5-of-california-billionaires-net-worth-to-fund-health-care/
http://www.memeorandum.com/251024/p39#a251024p39

Rigby keeps trying to invent money, but he doesn't have a coherent model of interest rate policy in response to tariff shocks, so I'm not convinced.

Mural in the parking garage at the Cherry Arthaus that I visited on my circumnavigation of the Inlet this morning
#photo #photography #mural

Didn't know that {skimr::skim} worked an arrow object. It's pretty cool, but it hits your RAM pretty hard. That's only a 70MB directory of parquet files, and my RAM usage went up by ~1.3GB. #RStats Code: https://ray.so/fCoXwso

Gauge symmetry and the arrow of time: How to count what counts
Sean Gryb
https://arxiv.org/abs/2509.14720 https://arxiv.org/pdf/2509.14720

Gauge symmetry and the arrow of time: How to count what counts
This thesis addresses two major problems in the philosophy of physics. The first is how to identify the minimal physical content of a theory; that is, what features of a theory are truly needed to make predictions, and what can be removed without changing its empirical consequences. The second is the problem of time's arrow: why time seems to have a direction, even though the fundamental laws of physics treat the past and future symmetrically. I show that answering the first question leads to…

There's a blackboard in front of a dining place. On it, "free cold drink for every meal", and an arrow facing right. Except that, to the right, there's the street, and on its other side… a bank.
(The blackboard must have been turned around.)

Moment-SOS hierarchies for arrow-type polynomial matrix inequalities with applications to structural optimization
Marouan Handa, Marek Tyburec, Giovanni Fantuzzi, Victor Magron, Michal Ko\v{c}vara
https://arxiv.org/abs/2509.02849

Moment-SOS hierarchies for arrow-type polynomial matrix inequalities with applications to structural optimization
The Arrow Decomposition (AD) technique, initially introduced in [Mathematical Programming 190(1-2) (2021), pp 105-134], demonstrated superior scalability over the classical chordal decomposition in the context of Linear Matrix Inequalities (LMIs) if the matrix in question satisfied suitable assumptions. The primary objective of this paper is to extend the AD method to address Polynomial Optimization Problems (POPs) involving large-scale Polynomial Matrix Inequalities (PMIs), with the solution f…

Underground ⤵️
地下 ⤵️
📷 Minolta Hi-Matic AF
🎞️ERA 100, expired 1994
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Arrow's Impossibility Theorem as a Generalisation of Condorcet's Paradox
Ori Livson, Mikhail Prokopenko
https://arxiv.org/abs/2510.09076 https://ar…

Arrow's Impossibility Theorem as a Generalisation of Condorcet's Paradox
Arrow's Impossibility Theorem is a seminal result of Social Choice Theory that demonstrates the impossibility of ranked-choice decision-making processes to jointly satisfy a number of intuitive and seemingly desirable constraints. The theorem is often described as a generalisation of Condorcet's Paradox, wherein pairwise majority voting may fail to jointly satisfy the same constraints due to the occurrence of elections that result in contradictory preference cycles. However, a formal proof of t…

Elastic Meetup #98 - Analyse de données interactive : la rencontre de ES|QL, Arrow et Pandas - YouTube
https://www.youtube.com/watch?v=O7WBydgZErI
Avec du @…

@… But yes this kind of stuff would be great for non-techies because they can just point and click and it remains super keyboard accessible as well. Like on this first screen. You can just press Enter to start install or click OK. Also if you want to change any of those values, you can click, or use arrow keys and Enter, or just type the numbers to go into those sections.

Despite having beencriticized by civil rights groups for using
"cell site simulators" (Stingrays) during the last Trump administration,
ICE continues to use the technology.
Earlier this year, new media publication Straight Arrow News said it had
“mobile network anomalies” around a Washington state protest against ICE raids that were consistent with Stingray use.
Forbes found contract records showing ICE purchased nearly
$1 million worth of “cell s…

How ICE Is Using Fake Cell Towers To Spy On People’s Phones
ICE is using a controversial spy tool to locate smartphones, court records show.

tag yourself I’m 180° rotated keyboard_arrow_down

@… I want that on my wall for video calls. With a big arrow pointing to my head. 😜

15 years = “for a while” 🤣

This is my regular reminder that "peertube.se" is run by The Nordic Resistance Movement, the fascists of the Nordic countries.
That instance has nothing to do with PeerTube itself, it’s just a instance run by scummy fascists who poison free spaces with their hate.
#Fascism #AntiFascism

Updated Post: Podcast ep 196: Trusting our future selves to be resourceful with Dr Jan Eppingstall https://www.overcomecompulsivehoarding.co.uk/podcast-ep-196-trusting-our-future-selves-to-be-resourceful-with-dr-jan-e…

Invertible Syntax without the Tuples (Functional Pearl)
Mathieu Boespflug, Arnaud Spiwack
https://arxiv.org/abs/2508.09856 https://arxiv.org/pdf/2508.09856…

Invertible Syntax without the Tuples (Functional Pearl)
In the seminal paper Functional unparsing, Olivier Danvy used continuation passing to reanalyse printf-like format strings as combinators. In the intervening decades, the conversation shifted towards a concurrent line of work -- applicative, monadic or arrow-based combinator libraries -- in an effort to find combinators for invertible syntax descriptions that simultaneously determine a parser as well as a printer, and with more expressive power, able to handle inductive structures such as lists…

Machine Learning H-theorem
Ruben Lier
https://arxiv.org/abs/2508.14003 https://arxiv.org/pdf/2508.14003

Machine Learning H-theorem
H-theorem provides a microscopic foundation of the Second Law of Thermodynamics and is therefore essential to establishing statistical physics, but at the same time, H-theorem has been subject to controversy that in part persists till this day. To better understand H-theorem and its relation to the arrow of time, we study the equilibration of randomly oriented and positioned hard disks with periodic boundary conditions. Using a model based on the DeepSets architecture, which imposes permutation…

I'm looking for better ways to convert between #QGIS VectorLayers and #GeoPandas GeoDataFrames. #pyogrio and #arrow

Looking for better ways to convert between QGIS VectorLayer and (Geo)DataFrame
Plugin developers who want to use (Geo)Pandas-based functionality in their plugins regularly face the challenge of converting QGIS vector layers to (Geo)DataFrames. There is currently no built-in c…

be there or be pudding
#Seattle @…

be there or be pudding
#Seattle @…

🇺🇦 #NowPlaying on KEXP's #VarietyMix
Paul McCartney:
🎵 Arrow Through Me
#PaulMcCartney

DOJ to seek indictment of former Trump adviser John Bolton (Devin Pavlou/Straight Arrow News)
https://san.com/cc/doj-to-seek-indictment-of-former-trump-adviser-john-bolton/
http://www.memeorandum.com/251016/p68#a251016p68

As we turned into Lone Pine to begin the half-marathon ascent of Mount Whitney,
I got the sense that Frederick had been distilled into a person whose focus was so singular that she only needed someone to show her direction.
That someone was Boyd.
Frederick asked him to pace the miles into the base of the climb,
and it was then that Boyd told her,
finally, that she was on pace to break the age-group record.
This was the final arrow in his quiver.
…

What It Takes to Crew the Hardest Race on Earth
Every year, ultrarunners sign up to compete in a brutal race that stretches 135 miles across Death Valley in the high heat of summer. Because of its harsh conditions, the Badwater 135 is perhaps the most intensely crewed ultra in the world, and without these dedicated support teams, for most, the race would be impossible.

On Irreversibility and Stochastic Systems: Part One
Giorgio Picci
https://arxiv.org/abs/2508.08330 https://arxiv.org/pdf/2508.08330

On Irreversibility and Stochastic Systems: Part One
We attempt to characterize irreversibility of a dynamical system from the existence of different forward and backward mathematical representations depending on the direction of the time arrow. Such different representations have been studied intensively and are shown to exist for stochastic diffusion models. In this setting one has however to face the preliminary justification of stochastic description for physical systems which are described by classical mechanics as inherently deterministic a…

An account of the arrow of time when scale is surplus
Sean Gryb, Simon Friederich
https://arxiv.org/abs/2510.03041 https://arxiv.org/pdf/2510.03041

An account of the arrow of time when scale is surplus
Existing accounts of the cosmological arrow of time face a dilemma: generalist approaches that posit time-asymmetric laws lack independent motivation, while particularist approaches that invoke a Past Hypothesis face serious conceptual and explanatory problems. We propose a novel account that dispenses with the need for both time-asymmetric laws and a Past Hypothesis. Instead, it is centred around a symmetry argument that reveals attractors and so-called 'Janus points'. The main idea is that th…

Classification of silted algebras for two quivers of Dynkin type $\mathbb{D}_{n}$
Houjun Zhang
https://arxiv.org/abs/2509.05906 https://arxiv.org/pdf/2509.…

Classification of silted algebras for two quivers of Dynkin type $\mathbb{D}_{n}$
Let $Q$ be the Dynkin quiver of type $\mathbb{D}_{n}$ with linear orientation and let $Q'$ be the quiver formed by reversing the arrow at the unique source in $Q$. In this paper, we present a complete classification of both silted algebras and strictly shod algebras associated with these two quivers. Based on the classification, we derive formulas for counting the number of silted algebras and strictly shod algebras. Furthermore, we establish that all strictly shod algebras corresponding to $…

Replaced article(s) found for math.CT. https://arxiv.org/list/math.CT/new
[1/1]:
- Arrow algebras
Benno van den Berg, Marcus Briet
https://

Replaced article(s) found for physics.soc-ph. https://arxiv.org/list/physics.soc-ph/new
[1/1]:
- Evaluating Fairness of Voting Systems: Simulating Violations of Arrow's Conditions
Virochan Pandit (The Johns Hopkins University), Joseph Cutrone (The Johns Hopkins Universi…

Unlock giant nonreciprocity via multi-valued behavior of non-Hermitian zero-index materials
Yang Li, Yueyang Liu, Yucong Yang, Tianyi Zhang, Jianfeng Chen, Tian Dong, Fulong Shi, Phatham Loahavilai, Tianchi Zhang, Di Wu, Zixuan Wei, Dengfu Deng, Jun Qin, Longjiang Deng, Cheng-Wei Qiu, Lei Bi
https://arxiv.org/abs/2509.06121

Unlock giant nonreciprocity via multi-valued behavior of non-Hermitian zero-index materials
Although Einstein's field equations are time-independent, the multivalued feature of the horizon of a blackhole naturally enables the one-way transmission, leading to the strong arrow of time from the time-independent gravitational interaction. Here we experimentally demonstrate a photonic analogue of this principle and reveal the infinite nonreciprocity of the time-reversal-symmetric Maxwell equations. By designing a non-Hermitian zero-index magneto-optical metawaveguide, we introduce multival…

PATH CLOSED
#SilentSunday #CentralPark

🪞 The Existential Spectrum! 🪞
#Existentialism #Nihilism #Absurdism #Philosophy

Updated Post: Podcast ep 196: Trusting our future selves to be resourceful with Dr Jan Eppingstall https://www.overcomecompulsivehoarding.co.uk/podcast-ep-196-trusting-our-future-selves-to-be-resourceful-with-dr-jan-e…

Very-Well-Behaved Epireflections for Categories of Models of Sketches
Jo\~ao J. Xarez
https://arxiv.org/abs/2509.07241 https://arxiv.org/pdf/2509.07241

Very-Well-Behaved Epireflections for Categories of Models of Sketches
Firstly, precise conditions on how to obtain very-well-behaved epireflections are explored and improved from the author's previous papers; meaning that, beginning with a monad and a prefactorization system on a category, is produced a reflection with stable units (stronger than semi-left-exactness, also called admissibility in categorical Galois Theory) and an associated monotone-light factorization. Then, we were able to show that, for a pseudo-filtered category J in which every arrow is a mon…

Updated Post: philippa.willitts@gmail.com https://www.overcomecompulsivehoarding.co.uk/podcast-ep-196-trusting-our-future-selves-to-be-resourceful-with-dr-jan-eppingstall

Stochastic Calculus Approach to Thermodynamics of Jump Processes
Lars Torbj{\o}rn Stutzer
https://arxiv.org/abs/2508.00940 https://arxiv.org/pdf/2508.00940…

Stochastic Calculus Approach to Thermodynamics of Jump Processes
Stochastic thermodynamics is the field of study relating fluctuations in stochastic systems to thermodynamic quantities. The total entropy production (EP), is central to the thermodynamic classification of systems. Non-equilibrium systems manifestly all have non-zero EP and therefore impose an "arrow of time". Thermodynamic inequalities are lower bounds on the total EP and are especially useful when only parts of systems are operationally accessible. We use a stochastic calculus approach to dir…

Rethinking Beta: A Causal Take on CAPM
Naftali Cohen
https://arxiv.org/abs/2509.05760 https://arxiv.org/pdf/2509.05760

Rethinking Beta: A Causal Take on CAPM
The CAPM regression is typically interpreted as if the market return contemporaneously \emph{causes} individual returns, motivating beta-neutral portfolios and factor attribution. For realized equity returns, however, this interpretation is inconsistent: a same-period arrow $R_{m,t} \to R_{i,t}$ conflicts with the fact that $R_m$ is itself a value-weighted aggregate of its constituents, unless $R_m$ is lagged or leave-one-out -- the ``aggregator contradiction.'' We formalize CAPM as a structura…

New: Podcast ep 196: Trusting our future selves to be resourceful with Dr Jan Eppingstall https://www.overcomecompulsivehoarding.co.uk/podcast-ep-196-trusting-our-future-selves-to-be-resourceful-with-dr-jan-eppingstal…