Tootfinder

from my link log —
What is systems programming, really?
https://willcrichton.net/notes/systems-programming/
saved 2024-10-10

from my link log —
Histogramming bytes with positional popcount, GF2P8AFFINEQB edition.
http://bitmath.blogspot.com/2024/11/histogramming-bytes-with-positional.html
saved 2024-11-10

Histogramming bytes with positional popcount (GF2P8AFFINEQB edition)
A while ago, after some back and forth on twitter/X with @corsix , I dropped some implementation of byte histogramming without explaini...

I rode my bike 600 miles in 2024 and it's June 1st, 2025 and I'm over 500 miles for this year!
My goal for 2025 is 1,000 miles which I think is still doable as long as I don't have any injuries (sigh) and nothing else goes wrong.
#bikeTooter

On the regularization property of Levenberg-Marquardt method with Singular Scaling for nonlinear inverse problems
Rafaela Filippozzi, Everton Boos, Douglas S. Gon\c{c}alves, Fermin S. V. Baz\'an
https://arxiv.org/abs/2506.00190

On the regularization property of Levenberg-Marquardt method with Singular Scaling for nonlinear inverse problems
Recently, in Applied Mathematics and Computation 474 (2024) 128688, a Levenberg-Marquardt method (LMM) with Singular Scaling was analyzed and successfully applied in parameter estimation problems in heat conduction where the use of a particular singular scaling matrix (semi-norm regularizer) provided approximate solutions of better quality than those of the classic LMM. Here we propose a regularization framework for the Levenberg-Marquardt method with Singular Scaling (LMMSS) applied to nonline…

@… Hallo, von @… wurde ich mit der Frage, wie ein #Taschenmesser im

Waffengesetzänderungen 2024: Fragen & Antworten
Allgemeine Fragen

BWT for string collections
Davide Cenzato, Zsuzsanna Lipt\'ak, Nadia Pisanti, Giovanna Rosone, Marinella Sciortino
https://arxiv.org/abs/2506.01092 htt…

BWT for string collections
We survey the different methods used for extending the BWT to collections of strings, following largely [Cenzato and Lipták, CPM 2022, Bioinformatics 2024]. We analyze the specific aspects and combinatorial properties of the resulting BWT variants and give a categorization of publicly available tools for computing the BWT of string collections. We show how the specific method used impacts on the resulting transform, including the number of runs, and on the dynamicity of the transform with resp…

Nouvelle publication: Montées & descentes dans les gares en 2024
👉Sur le portail statistique: https://reporting.sbb.ch/fr/transports?highlighted=3a58b28b54dfca1498a080fae…

Transports - SBB Zahlen & Fakten

This https://arxiv.org/abs/2404.06343 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Should We Expect Further Acceleration of the Earth's Rotation in the Coming Years?
Recently, it has been suggested in the literature that the difference between universal and coordinated time UT1-UTC could reach a large positive value in the coming years (Agnew 2024). This would make it necessary to introduce a negative leap second into UTC for the first time in history, which in turn will cause serious problems in time keeping and synchronization systems around the world. Based on the latest Earth's rotation and universal time data published by the international Earth rotati…

Chicago-Carnegie Hubble Program (CCHP) A Multi-Wavelength Search for the Effects of Metallicity on the Cepheid Distance Scale. Part II: Theoretical Models and Synthetic Spectra
Barry F. Madore, Wendy L. Freedman, Kayla Owens
https://arxiv.org/abs/2506.01188

Chicago-Carnegie Hubble Program (CCHP) A Multi-Wavelength Search for the Effects of Metallicity on the Cepheid Distance Scale. Part II: Theoretical Models and Synthetic Spectra
This is the second of two papers exploring the effects of metallicity on the multi-wavelength properties of Cepheids in terms of their multi-wavelength period-luminosity (PL) relations, impacting their use as extragalactic distance indicators, underpinning one of the most popular paths to estimating of the expansion rate of the Universe, Ho. In Paper I (Madore & Freedman 2024) we presented five tests for the influence of metallicity on galactic and extragalactic Cepheid PL relations, spanning n…

Worst to first for 49ers? Ranking 8 last-place teams’ chances to win division in 2025 https://www.foxsports.com/stories/nfl/worst-first-49ers-ranking-8-last-place-teams-chances-win-division-2025

from my link log —
aa-56: an astronomical ephemeris calculator program.
http://www.moshier.net/aadoc.html
saved 2024-05-28 https://

Cowboys breakout star cracks top-25 defensive tackle rankings https://www.si.com/nfl/cowboys/news/dallas-cowboys-breakout-star-cracks-top-25-defensive-tackle-rankings

from my link log —
When should a Java JIT compiler expand garbage collection barriers?
https://robcasloz.github.io/blog/2024/02/14/when-should-a-compiler-expand-garbage-collection-barriers.html
saved…

from my link log —
“Twelfth Night Till Candlemas: the story of a forty-year book-quest and of its remarkable ending.
https://davidallengreen.com/2024/12/twelfth-night-till-candlemas-the-story…

“Twelfth Night Till Candlemas” – the story of a forty-year book-quest and of its remarkable ending
The day before the Winter Solstice, 2024 This post is about finally finding a book from one’s youth forty years later – and after nearly thirty years of searching. It is also a tale about gob…

from my link log —
The magic of software; or, what makes a good engineer also makes a good engineering organization.
https://moxie.org/2024/09/23/a-good-engineer.html
saved 2025-05-21

from my link log —
Jujutsu (jj), a git compatible version control system.
https://tonyfinn.com/blog/jj/
saved 2024-10-20 https://dot…