Tootfinder

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.

Czekamy na #nordkapp na dobrą pogoda przy tiramisu i butelce wina z Bordeaux - jedno ze skrzynki kupionej w kwietniu - przepyszne wino domu z Châteu Haut-Greyzeau - rocznik 2022 im się bardzo udał.

https://social.craftknight.com/notice/AszTY1M40PbIUf0B4C

Krugman outlines a constellation of possible causes around a core theme: extreme uncertainty.
“What does a business do in the face of this kind of uncertainty? It tries to avoid making commitments that it may soon regret.”
Krugman tries to tie it all to Trump’s recent actions, which is dubious: the post-college job market has been crap since 2022 or 2023; Krugman’s own graph suggests it started worsening circa 2018. The larger theme of uncertainty, however, fits that timeframe.

New Bounds for the Ideal Proof System in Positive Characteristic
Amik Raj Behera, Nutan Limaye, Varun Ramanathan, Srikanth Srinivasan
https://arxiv.org/abs/2506.16397

New Bounds for the Ideal Proof System in Positive Characteristic
In this work, we prove upper and lower bounds over fields of positive characteristics for several fragments of the Ideal Proof System (IPS), an algebraic proof system introduced by Grochow and Pitassi (J. ACM 2018). Our results extend the works of Forbes, Shpilka, Tzameret, and Wigderson (Theory of Computing 2021) and also of Govindasamy, Hakoniemi, and Tzameret (FOCS 2022). These works primarily focused on proof systems over fields of characteristic $0$, and we are able to extend these results…

A survey of UK academic integrity violations finds nearly 7,000 proven AI cheating cases in 2023-24, or 5.1 per 1,000 students, up from 1.6 per 1,000 in 2022-23 (Michael Goodier/The Guardian)
https://www.theguardian.co…

Yay, the German math and astronomy wizard Erhard Weigel - see #SolarEclipse map by Michael Zeiler during the final SEC talk, and it's already a pretty modern and clever one! 8/n - more tomorrow.

Good idea, perhaps the Commission could put this vision into practice for #EV roaming, so that the #AFIR provisions do not remain a dead letter?
From: @…

European Commission (@EUCommission@ec.social-network.europa.eu)
Attached: 1 image 🛬 Plane lands. Flight mode off. 💬 “Welcome to Italy! Use your mobile plan just like at home.” 8 years of free EU roaming – we've come a long way: → 2000s: €0.50–€1/min calls → 2007: roaming caps → 2017: the end of roaming charges → 2022: the improved “Roam like at home” pack extended to 2032, bringing: 🌐 Fast 5G access across the EU 💰 Protection from unexpected charges 🆘 Better access to emergency services Fair for opera…

Time For 9 o'clock #HashTagGames hosted by @… Let's play!
#AquariumABookOrPlay

This was a particularly good #wine brought back from #Argentina
Shared with good people during a good English summer evening.

Guru Puppy - I'm Learning From My Dog
#BeBetter
https://muz4now.com/2022/guru-puppy-im-learning-from-my-dog/

The Spread of Writing: Every Year (3000 BCE - 2022 CE)
https://www.youtube.com/watch?v=eUpJ4yVCNrI

Veteran LB Von Miller, Washington Commanders finalizing 1-year deal: Reports https://www.nytimes.com/athletic/6499101/2025/07/16/von-miller-washington-commanders-signing-reports/

Domestic Heat Pumps: Barriers to Installation (2022) - A case study in the friction in specifying and installing a heat-pump in the UK, even for a savvy early adopter. #heatpump #netZero #futureReady

Domestic Heat Pumps: Barriers to Installation (2022)
A case study in the friction in specifying and installing a heat-pump in the UK, even for a savvy early adopter. #heatpump #netZero #futureReady

This https://arxiv.org/abs/2506.03074 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_sta…

GL-LowPopArt: A Nearly Instance-Wise Minimax Estimator for Generalized Low-Rank Trace Regression
We present `GL-LowPopArt`, a novel Catoni-style estimator for generalized low-rank trace regression. Building on `LowPopArt` (Jang et al., 2024), it employs a two-stage approach: nuclear norm regularization followed by matrix Catoni estimation. We establish state-of-the-art estimation error bounds, surpassing existing guarantees (Fan et al., 2019; Kang et al., 2022), and reveal a novel experimental design objective, $\mathrm{GL}(π)$. The key technical challenge is controlling bias from the non…

Saw a bit of a general knowledge gameshow the other day where the question was something like "Which woman became the UK's shortest-serving Prime Minister in 2022?" and the contestant absolutely blanked on it.

Updated line list for the principal isotopologue of carbon monoxide
Vladimir G. Ushakov, Emile S. Medvedev
https://arxiv.org/abs/2506.12216 https://…

Updated line list for the principal isotopologue of carbon monoxide
The line list for the principal isotopologue of CO calculated earlier by the present authors [1, 2] with the irregular dipole-moment function (DMF) is updated with use of the recent high-precision measurements in the 3-0 [3, 4] (Bielska et al. 2022, Hodges et al. 2025) and 7-0 [5] (Balashov et al. 2023) bands. The new data came in contradiction with the experimental data on the 1-0 band [6, 7]. Therefore, we performed fitting several model DMFs to the modified original data set of Meshkov et al…

New Bounds on the Anti-Ramsey Number of Independent Triangles
Hongliang Lu, Xinyue Luo, Xinxin Ma
https://arxiv.org/abs/2506.07115 https://

New Bounds on the Anti-Ramsey Number of Independent Triangles
An edge-colored graph is called \textit{rainbow graph} if all the colors on its edges are distinct. Given a positive integer $n$ and a graph $G$, the \textit{anti-Ramsey number} $ar(n,G)$ is defined to be the minimum number of colors $r$ such that there exists a rainbow copy of $G$ in any exactly $r$-edge-coloring of $K_n$. Wu et al. (Anti-Ramsey numbers for vertex-disjoint triangles, \emph{Discrete. Math.}, \textbf{346} (2022), 113123) determined the anti-Ramsey number $ar(n, kK_3)$ for $n\g…

This https://arxiv.org/abs/2409.08429 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The Atacama Cosmology Telescope: Systematic Transient Search of Single Observation Maps
We conduct a systematic search for astrophysical transients using data from the Atacama Cosmology Telescope (ACT). The data were taken from 2017 to 2022 in three frequency bands spanning 77 GHz to 277 GHz. In this paper we present a pipeline for transient detection using single observation maps where each pixel of a map contains one observation with an integration time of approximately four minutes. We detect 34 transient events at 27 unique locations. All but two of the transients are associat…

Dreaming is more than what happens while you sleep
#dreams #inspiration
https://…

Dreaming is more than what happens while you sleep
Stan Stewart - @muz4now

Online Budget-Feasible Mechanism Design with Predictions
Georgios Amanatidis, Evangelos Markakis, Christodoulos Santorinaios, Guido Sch\"afer, Panagiotis Tsamopoulos, Artem Tsikiridis
https://arxiv.org/abs/2505.24624

Online Budget-Feasible Mechanism Design with Predictions
Augmenting the input of algorithms with predictions is an algorithm design paradigm that suggests leveraging a (possibly erroneous) prediction to improve worst-case performance guarantees when the prediction is perfect (consistency), while also providing a performance guarantee when the prediction fails (robustness). Recently, Xu and Lu [2022] and Agrawal et al. [2024] proposed to consider settings with strategic agents under this framework. In this paper, we initiate the study of budget-feasib…

Search for Magnetic Monopoles with the Complete ANTARES Dataset
A. Albert, S. Alves, M. Andr\'e, M. Ardid, S. Ardid, J. -J. Aubert, J. Aublin, B. Baret, S. Basa, Y. Becherini, B. Belhorma, F. Benfenati, V. Bertin, S. Biagi, J. Boumaaza, M. Bouta, M. C. Bouwhuis, H. Branzas, R. Bruijn, J. Brunner, J. Busto, B. Caiffi, D. Calvo, S. Campion, A. Capone, F. Carenini, J. Carr, V. Carretero, T. Cartraud, S. Celli, L. Cerisy, M. Chabab, R. Cherkaoui El Moursli, T. Chiarusi, M. Circella, J.…

Search for Magnetic Monopoles with the Complete ANTARES Dataset
This study presents a novel search for magnetic monopoles using data collected over a 14 year period (2008-2022) by the ANTARES neutrino telescope. The interaction of magnetic monopoles with matter was modeled according to Kazama, Yang, and Goldhaber cross-section. Upper limits on the flux of magnetic monopoles are obtained for velocities both above and below the Cherenkov threshold. No events consistent with the passage of magnetic monopoles were detected, enabling the setting of an upper flux…

Time For 9 o'clock #HashTagGames hosted by @… Let's play!
#DogBerryASongOrPoem

Prediction of the SVOM MXT camera end of life spectral performance based onproton irradiation results
Clara Plasse, Diego G\"otz, Aline Meuris, Miguel Fernandez Moita, Philippe Ferrando, Leo Favier, Francesco Ceraudo
#toXiv_bot_toot

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

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

Revisiting Bourgain's probabilistic construction of solutions to the 2-$d$ cubic NLS
Tadahiro Oh, Yuzhao Wang
https://arxiv.org/abs/2505.24271 https://…

Revisiting Bourgain's probabilistic construction of solutions to the 2-$d$ cubic NLS
In a seminal paper (1996), Bourgain proved invariance of the Gibbs measure for the defocusing cubic nonlinear Schrödinger equation on the two-dimensional torus by constructing local-in-time solutions in a probabilistic manner. In this note, we revisit and streamline his argument, using the random tensor estimate developed by Deng, Nahmod, and Yue (2022).

Time For 9 o'clock #HashTagGames hosted by @…
Let's play!
#MovieCharactersGraduationAdvice

🇺🇦 #NowPlaying on #BBC6Music's #CraigCharles
Yard Act:
🎵 Payday (6 Music Session, 2 Dec 2022)
#YardAct
https://open.spotify.com/track/54xTBGmKCsrrWDiUrM9UFX

Time For 9 o'clock #HashTagGames hosted by @… Let's play!
#DeepThoughtsOfLowHangingFruit

Effect of Different Concentration and Application Method of Zinc on Yield of Chickpea (Pisum Sativum L.)
Samaneh Goodarzi, Ali Tavanmand, Hamed Shajari
https://arxiv.org/abs/2505.23855

Effect of Different Concentration and Application Method of Zinc on Yield of Chickpea (Pisum Sativum L.)
This study evaluated the impact of Zinc (Zn) supplementation on the growth, yield, and seed quality of chickpea (Pisum sativum L.) under the semi-arid conditions of Kerman, Iran, across two growing seasons (2021-2022). A randomized complete block design was used with six treatments, including varying concentrations of zinc sulphate applied via foliar spraying (0.1%, 0.25%, 0.5%) or irrigation (4, 8, 16 kg/ha), each applied twice-one and two months after greening. Results from the first year rev…

Good Morning #Canada
On June 30th, 1987, a Canadian one-dollar coin was introduced, produced by the Royal Canadian Mint at its facility in Winnipeg. The beloved #Loonie was born. But did you know the iconic Loon image wasn't meant to be the coin in production and only came to be because the original master dies were lost by a courier. We came close to embedding "Voyageurs" at centre ice during the Olympics.
#CanadaIsAwesome #Numismatist
https://www.mint.ca/en/blog/2022-07-a-tale-of-two-designs-loonie

Time For 9 o'clock #HashTagGames hosted by @…
Some people shoot for the bare minimum. Some have no choice. Let's play!
#RulesToSqueakBy