Tootfinder

The Rise of Spotify and the Costs of the Perfect Playlist https://sonicstate.com/news/2025/06/10/the-rise-of-spotify-and-the-costs-of…

The Rise of Spotify and the Costs of the Perfect Playlist - 'Mood Machine' by Liz Pelly
Mood Machine' by Liz Pelly

Teachers are spending about $895 a year on their classrooms, according to a national study released by Minneapolis-based Adopt a Classroom. It’s a 49% increase from 2015.
https://kstp.com/kstp-news/top-news/teachers-face-rising-costs-to-k…

Online Joint Replenishment Problem with Arbitrary Holding and Backlog Costs
Yossi Azar, Shahar Lewkowicz
https://arxiv.org/abs/2507.16096 https://

Online Joint Replenishment Problem with Arbitrary Holding and Backlog Costs
In their seminal paper Moseley, Niaparast, and Ravi introduced the Joint Replenishment Problem (JRP) with holding and backlog costs that models the trade-off between ordering costs, holding costs, and backlog costs in supply chain planning systems. Their model generalized the classical the make-to-order version as well make-to-stock version. For the case where holding costs function of all items are the same and all backlog costs are the same, they provide a constant competitive algorithm, leav…

Climate Gentrification: The Hidden Costs of Disasters in Black Communities
https://chicagocrusader.com/climate-gentrification-hidden-costs-disasters-black-communities-climate/

Intel lagert Marketing an KI von Accenture aus
Die Kündigungen gehen weiter: Als Nächstes will Intel große Teile seines Marketings an KI-Tools von Accenture outsourcen.
https://www.he…

STMicro reports Q2 revenue down 14.4% YoY to $2.77B, with an operating loss of $133M, vs. $56.2M profit est., including $190M in impairment and other costs (Nathan Vifflin/Reuters)
https://www.reuters.com/technology/chipmak

House Finch, collecting cactus fuzz for nesting. Huntington Library, San Marino, California, USA. June, 2025. #huntingtonlibrary #finch #housefinch

In other news I FINALLY after days and weeks of searching found a problem that costs us literally hundreds of dollars in server costs a day 🥲🥲🥲🥲🥲

Maximal transitivity of the cactus group on standard Young tableaux
Sophia Liao, Leonid Rybnikov
https://arxiv.org/abs/2506.16561 https://

Maximal transitivity of the cactus group on standard Young tableaux
The action of the cactus group $C_n$ on Young tableaux of a given shape $λ$ goes back to Berenstein and Kirillov and arises naturally in the study of crystal bases and quantum integrable systems. We show that this action is $2$-transitive on standard Young tableaux of the shape $λ$ if and only if $λ$ is not self-transpose and not a single hook. Moreover, we show that in these cases, the image of the cactus group in the permutation group of standard Young tableaux is either the whole permutat…

ACA Subsidies Expire: Annual Health Insurance Costs to Rise up to $1K - Business Insider
https://www.businessinsider.com/aca-subsidies-expire-annual-health-insurance-costs-rise-1k-annually-2025-7