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Elon Musk attends the 56th annual World Economic Forum meeting in Davos, Switzerland, on Jan. 22. PARIS - French police raided the offices of Elon Musk's social media network X on Tuesday, and prosecutors ordered the tech billionaire to face questions in a widening investigation, amid growing scrutiny of the platform by authorities across Europe. The raid by the Paris prosecutor's cybercrime unit and Musk's summoning -- which could further increase tensions between Europe and the U.S. over Big Tech and free speech -- are linked to a yearlong investigation into suspected abuse of algorithms and fraudulent data extraction by X or its executives. Britain's privacy watchdog, meanwhile, also kicked off a formal investigation into Musk's artificial-intelligence chatbot Grok over the processing of personal data and its potential to produce harmful sexual images and video content. In a time of both misinformation and too much information, quality journalism is more crucial than ever. By subscribing, you can help us get the story right.

Love Lost's AI photo-matching technology helped locate Louie, an indoor cat who escaped through a window, connecting his owner Sharon with a helpful neighbor.

Two weeks ago, Netflix confirmed it would livestream the Love Is Blind season four reunion. But when the time came, first it was delayed, then, after an hour, Netflix pulled the plug. The streaming service soon tweeted an apology and aired the reunion yesterday. This was only Netflix's second attempt at livestreaming. Its first, Chris Rock's comedy special Selective Outrage, aired live in March.

I think it's important to be realistic in how people may interact with robotic systems and also how the robot can leverage that in the learning process.

The new research employed a brand new method of machine learning in the simulations.

Artificial intelligence (AI) systems meant to screen out online hate speech can be easily duped by humans, a study has found. Hateful text and comments are an ever-increasing problem in online environments, yet addressing the rampant issue relies on being able to identify toxic content. Researchers from Aalto University in Finland have discovered weaknesses in many machine learning detectors currently used to recognise and keep hate speech at bay. Many popular social media and online platforms use hate speech detectors. However, bad grammar and awkward spelling – intentional or not – might make toxic social media comments harder for AI detectors to spot.

A new chair-based gymnastics exercise programme has significant benefits for people with dementia, says a report. More than 150 people have taken part in the Love to Move scheme run by the British Gymnastics Foundation (BGF). And research by Age UK found the scheme to have "demonstrable benefits in the physical, emotional and cognitive aspects of older people". The organisers now aim to train more people to deliver the programme and make it more widely available. "This age and dementia-friendly programme is astonishing people with its life-changing benefits," said BGF manager Patrick Bonner.

Sex dolls are becoming much more than silicone orifices. Soon, they're going to talk and learn and maybe even walk around. In a Reddit AMA on Tuesday, RealDoll CEO Matt McMullen revealed some of the company's future plans for its sex dolls -- and the future of intimacy involves a lot of plastic, metal and your smartphone. In response to someone asking McMullen who he sees as the company's direct competition, he said the "human female." This might explain why RealDoll is trying to bring its products to "life."

Paul Bernays and David Hilbert carefully avoided overspecification of Hilbert's epsilon-operator and axiomatized only what was relevant for their proof-theoretic investigations. Semantically, this left the epsilon-operator underspecified. In the meanwhile, there have been several suggestions for semantics of the epsilon as a choice operator. After reviewing the literature on semantics of Hilbert's epsilon operator, we propose a new semantics with the following features: We avoid overspecification (such as right-uniqueness), but admit indefinite choice, committed choice, and classical logics. Moreover, our semantics for the epsilon supports proof search optimally and is natural in the sense that it does not only mirror some cases of referential interpretation of indefinite articles in natural language, but may also contribute to philosophy of language. Finally, we ask the question whether our epsilon within our free-variable framework can serve as a paradigm useful in the specification and computation of semantics of discourses in natural language.