#Tag · bonfire.cafe

Jan :rust: :ferris:

Speech and Language Processing (3rd ed. draft) - by Dan Jurafsky and James H. Martin (Stanford):

https://web.stanford.edu/~jurafsky/slp3/

#NLP #TextProcessing #AI #Algorithms

Speech and Language Processing

Jan :rust: :ferris:

@janriemer@floss.social · 6 days ago

Great video and explanation about #FalseSharing!

100x Slower Code due to False Sharing - by Keifer:

https://yewtu.be/watch?v=WIZf-Doc8Bk
(or YT: https://www.youtube.com/watch?v=WIZf-Doc8Bk)

#Performance #Concurrency #MultiThreading #Algorithm #Algorithms #CPlusPlus

Hacker News

@h4ckernews@mastodon.social · last week

Various shape regularization algorithms

https://github.com/nickponline/shreg

#HackerNews #shapeRegularization #algorithms #machineLearning #dataScience #GitHub #research

GitHub

GitHub - nickponline/shreg: Various shape regularization algorithms

Various shape regularization algorithms. Contribute to nickponline/shreg development by creating an account on GitHub.

Mallory Knodel

@mallory@techpolicy.social · last week

Hey Siri, got any ideas for how to tackle Earth’s destruction by humankind?

#Reddit #tiktok #x #disinformation #FacebookFediverse #bereal #Twitter #socialmediause #socialmedia #twitter #mastodon #threads #facebook #pinterest #instagram #Facebook #meta #algorithms #newsmast

Hacker News

@h4ckernews@mastodon.social · last week

Lessons from Hash Table Merging

https://gist.github.com/attractivechaos/d2efc77cc1db56bbd5fc597987e73338

#HackerNews #Lessons #HashTables #Merging #Programming #Algorithms #DataStructures

Mallory Knodel

@mallory@techpolicy.social · 2 weeks ago

#Reddit #tiktok #x #disinformation #FacebookFediverse #bereal #Twitter #socialmediause #socialmedia #twitter #mastodon #threads #facebook #pinterest #instagram #Facebook #meta #algorithms #newsmast

Evan Prodromou boosted

Mallory Knodel

@mallory@techpolicy.social · 2 weeks ago

Found this deep dive into how Russia (unconvincingly and somewhat hilariously) censors American TV shows quite fascinating https://www.nytimes.com/interactive/2025/08/19/arts/television/russia-tv-censorship.html?smid=nytcore-ios-share

#Reddit #tiktok #x #disinformation #FacebookFediverse #bereal #Twitter #socialmediause #socialmedia #twitter #mastodon #threads #facebook #pinterest #instagram #Facebook #meta #algorithms #newsmast

https://www.nytimes.com

These TV Hits Are Censored in Putin’s Russia

At best their meanings have changed. At worst, they no longer make sense.

Mallory Knodel

@mallory@techpolicy.social · 2 weeks ago

#Reddit #tiktok #x #disinformation #FacebookFediverse #bereal #Twitter #socialmediause #socialmedia #twitter #mastodon #threads #facebook #pinterest #instagram #Facebook #meta #algorithms #newsmast

https://www.nytimes.com

These TV Hits Are Censored in Putin’s Russia

At best their meanings have changed. At worst, they no longer make sense.

Hacker News

@h4ckernews@mastodon.social · 3 weeks ago

Faster Practical Modular Inversion

https://purplesyringa.moe/blog/faster-practical-modular-inversion/

#HackerNews #Faster #Modular #Inversion #Practical #Algorithms #Cryptography #Tech #News

purplesyringa's blog

Faster practical modular inversion

Last year, Lemire wrote about an optimized variation of the Euclidean algorithm for computing the greatest common divisor of two numbers, called binary Euclidean algorithm or Stein’s algorithm. It’s a best-of-class implementation, though it’s currently only used by libc++. The post also briefly mentions the extended Euclidean algorithm, a related algorithm most often used to compute the modular multiplicative inverse (given a remainder a and a modulus m , find x such that a ⋅ x mod m = 1 ): There is also a binary version of the extended Euclidean algorithm[,] although it is quite a bit more involved and it is not clear that it […] can be implemented at high speed, leveraging fast instructions, when working on integers that fit in general-purpose registers. […] My implementation of the binary extended Euclidean algorithm is quite a bit slower and not recommended. I expect that it should be possible to optimize it further. That’s a big shame, because the extended Euclidean algorithm can be optimized in a very similar manner, and the underlying ideas were described in a 2020 paper. It’s probably not well-known because the paper focuses on constant-time evaluation and long arithmetic, so people might have assumed it’s irrelevant. I’m hoping to bring justice to the extended Stein’s algorithm with this post. I’ll cover how the algorithm works, its limitations, some optimizations compared to Pornin’s paper, and potential further improvements. My implementation is available on GitHub as part of a Rust modular arithmetic library.

Hacker News

@h4ckernews@mastodon.social · 4 weeks ago

Well Being in Times of Algorithms

https://www.ssp.sh/blog/well-being-algorithms/

#HackerNews #WellBeing #Algorithms #MentalHealth #DigitalWellness #TechImpact

Data Engineering Blog

Well Being in Times of Algorithms

Investigation of the ground pillars for a well-lived life, and how the open web can help us with that.

Sabrina Web :privacypride: 📎 and 8 others boosted

Miguel Afonso Caetano

@remixtures@tldr.nettime.org · last month

"On a Thursday in early September, more than 40 strangers logged in to Instacart, the grocery-shopping app, to buy eggs and test a hypothesis.

Connected by videoconference, they simultaneously selected the same store — a Safeway in Washington, D.C. — and the same brand of eggs. They all chose pickup rather than delivery.

The only difference was the price they were offered: $3.99 for a couple of lucky shoppers. $4.59 or $4.69 for others. And a few saw a price of $4.79 — 20 percent more than some others, for the exact same product.

The shoppers were volunteers, participating in a study published on Tuesday and organized by the Groundwork Collaborative, a progressive policy group, and Consumer Reports, a nonprofit consumer publication. In tests in four cities across the country, nearly 200 volunteers checked prices on 20 grocery items on Instacart.

On item after item, they found significant differences. In a Target in North Canton, Ohio, some shoppers were charged $3.59 for a jar of Skippy peanut butter that others could get for $2.99. At a Safeway in Seattle, some people paid $3.99 for a box of Wheat Thins while others paid $4.89. And at a Target in St. Paul, Minn., some people were charged $4.59 for a box of Cheerios that others could get for $3.99.

“Two shoppers who are buying the exact same item from the exact same store at the exact same time are getting different prices,” said Lindsay Owens, executive director of the Groundwork Collaborative. “The data really backs up how extraordinarily pervasive this is.”
(...)
Groundwork’s findings are the latest example of how the notion of a single price, offered to all customers for a predictable period, is breaking down in the digital age. Companies are using sophisticated algorithms to adjust prices quickly in response to competitors’ offers and consumer behavior."

https://www.nytimes.com/2025/12/09/business/instacart-algorithmic-pricing.html

#USA #AlgorithmicPricing #DynamicPricing #Insatacart #Inflation #Algorithms