The first two authors contributed equally.

For a dataset of label-count pairs, an anonymized histogram is the multiset of counts.

Apple has retired the Mac's Launchpad, a feature that displayed all your apps and let you quickly pick the one you want to open. You can recreate the app launcher using these alternatives. The latest version of macOS, named Tahoe, added all kinds of new features to the Mac desktop. It also removed one: Launchpad. The feature, which gave Mac users an iPhone-like grid of applications complete with support for folders, is missing from macOS 26.

The'Great Meme Reset' Is Coming From Jack Dorsey to Gen Alpha, everyone seemingly wants to go back to the internet of a decade ago. But is it possible to reverse AI slop and brain rot? Memes are getting a reboot. The Great Meme Reset of 2026, as it's being called on TikTok, demands that on January 1 all memes revert to their 2010s glory days. Bland " brain rot " and AI -looking memes are out; Big Chungus is in.

Our columnist on digital culture suggests technology--or anti-technology technology--to give this holiday season. We are entering a Surrealist phase of personal technology. Any device you might imagine can be found online courtesy of an obscure Chinese factory, ready to be shipped out for a loved one's holiday enjoyment: pocket-size artificial-intelligence gizmos ( Rabbit r1, $199), in-home hologram machines (Code 27 Character Livehouse, $558), human-size robot servants ( 1X NEO, $20,000). The components of tech have become better and cheaper, from microchips to speakers and screens (have you seen how cheap a good TV is these days?), enabling out-there innovation. On the consumer side, we are bored of rote device designs; we've seen a dozen models of iPhone and crave something refreshingly different.

Message Passing Neural Networks (MPNNs) are a staple of graph machine learning. MPNNs iteratively update each node's representation in an input graph by aggregating messages from the node's neighbors, which necessitates a memory complexity

A group of quantum physicists claims to have created a version of the powerful reasoning AI model DeepSeek R1 that strips out the censorship built into the original by its Chinese creators. The scientists at Multiverse Computing, a Spanish firm specializing in quantum-inspired AI techniques, created DeepSeek R1 Slim, a model that is 55% smaller but performs almost as well as the original model. Crucially, they also claim to have eliminated official Chinese censorship from the model. In China, AI companies are subject to rules and regulations meant to ensure that content output aligns with laws and "socialist values." As a result, companies build in layers of censorship when training the AI systems.

Schools in the US are installing vape-detection tech in bathrooms to thwart student nicotine and cannabis use. A new investigation reveals the impact of using spying to solve a problem. It was in physical education class when Laila Gutierrez swapped out self-harm for a new vice. The freshman from Phoenix had long struggled with depression and would cut her arms to feel something. The first drag from a friend's vape several years ago offered the shy teenager a new way to escape. She quit cutting but got hooked on nicotine. Her sadness got harder to carry after her uncle died, and she felt she couldn't turn to her grieving parents for comfort. Bumming fruity vapes at school became part of her routine. "I would ask my friends who had them, 'I'm going through a lot, can I use it?'" Gutierrez, now 18, told The 74. "Or'I failed my test and I feel like smoking would be better than cutting my wrists.'"

Is the fall of Pokrovsk inevitable? Is Trump losing patience with Putin? At least 19 people have been killed and dozens wounded in Russian drone and missile attacks across Ukraine, according to the country's emergency service. The attack came overnight on Wednesday, as President Volodymyr Zelenskyy was due to arrive in Turkiye, where he hopes to revive talks over ending the war caused by Russia's full-scale invasion two years ago. Effective sanctions and assistance to Ukraine can change this," the president said in a social media post on Wednesday, calling for air defence missile aid from allies.