@cosmos4u@scicomm.xyzA live view of the #ArtemisII stack on the pad: https://www.youtube.com/watch?v=xCrPD7tfcr0 - where the countdown for the Wet Dress Rehearsal has begun at 1:13 UTC; see https://www.nasa.gov/blogs/missions/2026/01/31/countdown-begins-for-artemis-ii-wet-dress-rehearsal/ for the timeline and https://skyweek.wordpress.com/2026/02/01/generalprobe-wet-dress-rehearsal-fur-artemis-ii/ for maaany Artemis-related links going back to 2023.
@fanf@mendeddrum.orgfrom my link log —
What they don't tell you about demand paging in school.
https://offlinemark.com/2020/10/14/demand-paging/
saved 2020-10-17 ht…
@EarthOrgUK@mastodon.energyOn Website Technicals (2020-11) - Tech updates: work storage, Let's Encrypt auto-renew, lazy wins, slow https switch, AMP https only, soft canonical, Apple touch, Apache stop, ad sub. - https://m.earth.org.uk/note-on-site-technicals-42.html
@netzschleuder@social.skewed.dewiki_science: Wikipedia Map of Science (2020)
A network of scientific fields, extracted from the English Wikipedia in early 2020. Nodes are wikipedia pages representing natural, formal, social and applied sciences, and two nodes are linked if the cosine similarity of the page content is above a threshold. See <http://www.s…
@shaun@mastodon.xyzThe transformation is nearly complete. #KristiNoem
@fanf@mendeddrum.orgfrom my link log —
How we made our SaaS homepage cookie-free.
https://blog.leavemealone.app/no-more-cookies/
saved 2020-11-03 https://
@datascience@genomic.social{testthat} is great for automatic testing. Here are some tricks for the heavy user: #rstats
@cdarwin@c.imIt’s been 36 years since a mass femicide occurred at École Polytechnique in Montréal.
A man shot and killed 14 women because of their sex.
Described as “violent misogyny” by the federal government,
the killings have nonetheless never officially been called femicide in Canada
despite its global recognition as one of the most vivid examples of femicide in the western world.
Women and girls continue to be killed every two days somewhere in Canada, mostly by men. …
@toxi@mastodon.thi.ngAlready 6 years old, so not even taking into account post-2022 hyperscaling, this is a sobering, very rational and well argued 20 min presentation for some cold flush reality check of the hot fever dreams of AI proponents (and all YOLO energy/resource guzzlers of any walk/standing):
Blip (2020)
https://www.youtube.com/watch?v=cd…
@NuclearDisorder@mastodon.socialHeute vor 6 Jahren: Am 23. Januar 2020 stellte das "Bulletin of the Atomic Scientists" die #Weltuntergangsuhr auf 100 Sekunden vor 12 - so nah wie nie zuvor. Als Gründe nannten die beteiligten Wissenschaftler die politischen Lage sowie das Voranschreiten des Klimawandels.
@mxp@mastodon.acm.orgLŠ, je suis tout Š fait d’accord avec M. Ganzer: «Ce que je constate, ce sont des manquements. Et des manquements ne doivent pas arriver dans un pays tel que le nôtre.»
https://www.rts.ch/info/regions/valais/202
@mxp@mastodon.acm.orgLŠ, je suis tout Š fait d’accord avec M. Ganzer: «Ce que je constate, ce sont des manquements. Et des manquements ne doivent pas arriver dans un pays tel que le nôtre.»
https://www.rts.ch/info/regions/valais/202
@cosmos4u@scicomm.xyzThe #Artemis stack on the pad in a good image from the ISS: https://x.com/Astro_ChrisW/status/2018365716181705015 - processed with IrfanView, using AutoAdjustColors and contrast adjustment. Meanwhile the Wet Dress Rehearsal is in trouble because of - you guessed it - a hydrogen leak. Since the updates on https://www.nasa.gov/blogs/missions/ have become super-sparse it's hard to tell how serious the problem is.
@arXiv_csDS_bot@mastoxiv.pageApproximate Cartesian Tree Matching with Substitutions
Panagiotis Charalampopoulos, Jonas Ellert, Manal Mohamed
https://arxiv.org/abs/2602.08570 https://arxiv.org/pdf/2602.08570 https://arxiv.org/html/2602.08570
arXiv:2602.08570v1 Announce Type: new
Abstract: The Cartesian tree of a sequence captures the relative order of the sequence's elements. In recent years, Cartesian tree matching has attracted considerable attention, particularly due to its applications in time series analysis. Consider a text $T$ of length $n$ and a pattern $P$ of length $m$. In the exact Cartesian tree matching problem, the task is to find all length-$m$ fragments of $T$ whose Cartesian tree coincides with the Cartesian tree $CT(P)$ of the pattern. Although the exact version of the problem can be solved in linear time [Park et al., TCS 2020], it remains rather restrictive; for example, it is not robust to outliers in the pattern.
To overcome this limitation, we consider the approximate setting, where the goal is to identify all fragments of $T$ that are close to some string whose Cartesian tree matches $CT(P)$. In this work, we quantify closeness via the widely used Hamming distance metric. For a given integer parameter $k>0$, we present an algorithm that computes all fragments of $T$ that are at Hamming distance at most $k$ from a string whose Cartesian tree matches $CT(P)$. Our algorithm runs in time $\mathcal O(n \sqrt{m} \cdot k^{2.5})$ for $k \leq m^{1/5}$ and in time $\mathcal O(nk^5)$ for $k \geq m^{1/5}$, thereby improving upon the state-of-the-art $\mathcal O(nmk)$-time algorithm of Kim and Han [TCS 2025] in the regime $k = o(m^{1/4})$.
On the way to our solution, we develop a toolbox of independent interest. First, we introduce a new notion of periodicity in Cartesian trees. Then, we lift multiple well-known combinatorial and algorithmic results for string matching and periodicity in strings to Cartesian tree matching and periodicity in Cartesian trees.
toXiv_bot_toot
@mxp@mastodon.acm.orgLŠ, je suis tout Š fait d’accord avec M. Ganzer: «Ce que je constate, ce sont des manquements. Et des manquements ne doivent pas arriver dans un pays tel que le nôtre.»
https://www.rts.ch/info/regions/valais/202
@cdarwin@c.imThe Justice Department has backed off a dubious claim about President Nicolšs Maduro that the Trump administration promoted last year in laying the groundwork to remove him from power in Venezuela
-- that he leads a #drug #cartel called "Cartel de los Soles".
That claim traces back to a 2020 grand jury …
@netzschleuder@social.skewed.depsi: Plant Photosystem I excitation energy transfer network (2020)
Weighted directed network of the light-harvesting Photosystem Ι (PSI) of the plant Pisum sativum. The nodes represent chromophores with different identities (i.e. chlorophyll a, chlorophyll b, β-carotene and derivates, lutein, violaxanthin), while edges represent FRET transfer between chromophores. The link directionality connecting nodes in the PSI network depends on the energy levels of the connected chromophores. The…
@cosmos4u@scicomm.xyzThere have been FOUR #SolarFlares in the X class over just 20 hours: https://science.nasa.gov/blogs/solar-cycle-25/2026/02/02/sun-releases-4-strong-solar-flares/. But the consequences for Earth will be practically zero: https://bsky.app/profile/vincentledvina.bsky.social/post/3mdv7xktvs22b and https://x.com/JAtanackov/status/2018334607653937177 - what a waste ... ;-)
@fanf@mendeddrum.orgfrom my link log —
Files are fraught with peril.
https://danluu.com/deconstruct-files/
saved 2020-01-06 https://dotat.at/:/2FDEV.html
@cdarwin@c.im
@BBC6MusicBot@mastodonapp.uk @cdarwin@c.imIf you know something about Basic Income, you may be aware that
👉one of the first proposals for a Basic Income came from Thomas Paine, hero of the American and French revolutions.
In 1797, after a stint in a French prison, Paine wrote the pamphlet
"Agrarian Justice",
⭐️which sets out an argument for taxing land and distributing the proceeds among the population at large as compensation for landlessness.
Paine’s proposal to tax land and distribute the …
