Tootfinder

X is testing a new way of opening links without fully covering an X post, allowing users to see the Like, Repost, and other buttons, starting on iOS (Cheyenne MacDonald/Engadget)
https://www.engadget.com/x-is-testing-a-new-way-of…

X is testing a new way of opening links in posts to improve engagement
The new link popups will allow the reaction buttons to remain visible so users can interact with the post while reading.

X is testing a new way of opening links without fully covering an X post, allowing users to see the Like, Repost, and other buttons, starting on iOS (Cheyenne MacDonald/Engadget)
https://www.engadget.com/x-is-testing-a-new-way-of…

X is testing a new way of opening links in posts to improve engagement
The new link popups will allow the reaction buttons to remain visible so users can interact with the post while reading.

Navigating Sparsities in High-Dimensional Linear Contextual Bandits
Rui Zhao, Zihan Chen, Zemin Zheng
https://arxiv.org/abs/2510.08435 https://arxiv.org/pd…

Navigating Sparsities in High-Dimensional Linear Contextual Bandits
High-dimensional linear contextual bandit problems remain a significant challenge due to the curse of dimensionality. Existing methods typically consider either the model parameters to be sparse or the eigenvalues of context covariance matrices to be (approximately) sparse, lacking general applicability due to the rigidity of conventional reward estimators. To overcome this limitation, a powerful pointwise estimator is introduced in this work that adaptively navigates both kinds of sparsity. Ba…

Black hole mergers beyond general relativity: a self-force approach
Ayush Roy, Lorenzo K\"uchler, Adam Pound, Rodrigo Panosso Macedo
https://arxiv.org/abs/2510.11793 https:…

Black hole mergers beyond general relativity: a self-force approach
Gravitational waves from binary black hole mergers provide a glimpse of gravitational dynamics in its most extreme observable regime, potentially enabling precision tests of general relativity (GR) and of the Kerr description of black holes. However, until recently, numerical simulations of black hole mergers have not been possible in theories beyond GR. While recent breakthroughs have overcome that obstacle, simulations covering the full, interesting range of binary parameters remain unfeasibl…

Replaced article(s) found for math.CO. https://arxiv.org/list/math.CO/new
[1/1]:
- Covering the hypercube, the uncertainty principle, and an interpolation formula
Paata Ivanisvili, Ohad Klein, Roman Vershynin