Africa Cup of Nations: Who will get through to the final? We're at the semi-final stage at the Africa Cup of Nations, where the margins are tighter and the pressure is growing. Samantha Johnson looks at the contenders. Jake Paul vs Anthony Joshua: Is this good for Boxing?

You must have heard of Dubai chocolate: the sticky, indulgent confectionary filled with pistachio cream, tahini and shreds of knafeh pastry, which has become a global sensation. Now the decadent bar has inspired South Korea's latest dessert craze. The Dubai chewy cookie has been selling like wildfire - and even restaurants that don't usually offer baked goods are trying to get a nibble of the market. Despite its name, the cookie's texture more closely resembles a rice cake, and is made by stuffing pistachio cream and knafeh shreds into a chocolate marshmallow. Shops are selling hundreds of cookies within minutes and the frenzy has sent prices of key ingredients surging, local media reported.

The chef behind Wales' only two-Michelin-star restaurant has said he is not embarrassed after it was awarded a one-star hygiene rating. Ynyshir Restaurant and Rooms, near Machynlleth in Ceredigion, which charges nearly £500 per head, received the rating after a visit by food safety officers on 5 November. According to the Food Standards Agency (FSA), a score of one out of five means major improvement is necessary. But chef patron Gareth Ward, a contestant on MasterChef The Professionals, said the restaurant was working at the highest standard in the world and doing something different with how it approaches raw ingredients and techniques. Ynyshir offers a high-end dining experience starting at £468 per person, including a 30-course tasting menu and an in-house DJ.

Donald Trump is the only world leader capable of stopping Vladimir Putin from threatening Europe, according to Poland's President Karol Nawrocki. In an interview with Radio 4's Today programme he said the Russian leader was not to be trusted, but that Europe needed to do everything it could to support President Trump in his efforts to end the war in Ukraine. President Nawrocki was already well-known as a firm supporter of Donald Trump even before he landed in Britain for meetings with PM Sir Keir Starmer and others. Now, he says that with Vladimir Putin's Russia threatening his country as well as central and eastern Europe, the US president was the only person who could, as he put it, solve this problem - as well as ending the war in Ukraine. Referring to last September's mass incursion by Russian drones, when more than 20 uncrewed aircraft crossed into Poland from Belarus and Ukraine, President Nawrocki called it an extraordinary situation, adding that until that time, no Nato member state had experienced a drone attack on that scale.

US approves sale of Nvidia's advanced AI chips to China The US government has given chip giant Nvidia the green light to sell its advanced artificial intelligence (AI) processors in China, the Department of Commerce said on Tuesday. The H200, Nvidia's second-most-advanced semiconductor, had been restricted by Washington over concerns that it would give China's technology industry and military an edge over the US. The Commerce Department said the chips can be shipped to China granted that there is sufficient supply of the processors in the US. President Donald Trump said last month that he would allow the chip sales to approved customers in China and collect a 25% fee. Nvidia's spokesperson told the BBC that the company welcomed the move, saying it will benefit manufacturing and jobs in the US.

A poster featuring an image of billionaire Elon Musk, calling for users of his X social media platform to delete their accounts due to the artificial intelligence chatbot Grok's image-creation feature, is seen at a bus stop in London on Tuesday. PARIS - Elon Musk's company xAI has faced global backlash in recent days over sexualized "deepfake" images of women and children created by its Grok chatbot. Here are the essential facts about the scandal, how governments have responded and the company's attempts to cool the controversy. Grok -- Musk's version of the chatbots also offered by OpenAI and other generative AI companies -- has its own account on the X social media network allowing users to interact with it. In a time of both misinformation and too much information, quality journalism is more crucial than ever.

U.S. gives green light to Nvidia H200 chip exports to China U.S. President Donald Trump's administration will allow Nvidia to export its second most powerful AI chips to China after the company was previously barred from doing so. WASHINGTON - The administration of U.S. President Donald Trump on Tuesday gave a formal green light to China-bound sales of Nvidia's second most powerful AI chips, putting in place a rule that will likely kickstart shipments of the H200 despite deep concerns among China hawks in Washington. According to the regulations, the chips will be reviewed by a third-party testing lab to confirm their technical AI capabilities before they can be shipped to China, which cannot receive more than 50% of the total amount of chips sold to American customers. Nvidia will need to certify that there are enough H200s in the U.S., while Chinese customers must demonstrate sufficient security procedures and cannot use the chips for military purposes. In a time of both misinformation and too much information, quality journalism is more crucial than ever.

A research team at the University of Tokyo began testing a Level 4 autonomous driving bus on public roads for the first time on Tuesday. Levels of automation are measured between 1 to 5, with Level 1 referring to technologies that assist a driver, such as adaptive cruise control, while Level 5 is complete automation. As part of their research, the team has been testing a Level 2 bus -- partially automated driving -- on the route that connects the university's Kashiwa campus to its nearest station, the Kashiwanoha-campus station, since the end of 2019. 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.

If there is no red line around AI-generated sex abuse, then no line exists. For more than a week, beginning late last month, anyone could go online and use a tool owned and promoted by the world's richest man to modify a picture of basically any person, even a child, and undress them. This was not some deepfake nudify app that you had to pay to download on a shady backwater website or a dark-web message board. This was Grok, a chatbot built into X--ostensibly to provide information to users but, thanks to an image-generating update, transformed into a major producer of nonconsensual sexualized images, particularly of women and children. The forced undressings happened out in the open, in one stretch thousands of times every hour, on a popular social network where journalists, politicians, and celebrities post.

Although extensive research exists in spatial modeling, few studies have addressed finite mixture model-based clustering methods for spatial data. Finite mixture models, especially Gaussian mixture models, particularly suffer from high dimensionality due to the number of free covariance parameters. This study introduces a spatial covariance constraint for Gaussian mixture models that requires only four free parameters for each component, independent of dimensionality. Using a coordinate system, the spatially constrained Gaussian mixture model enables clustering of multi-way spatial data and inference of spatial patterns. The parameter estimation is conducted by combining the expectation-maximization (EM) algorithm with the generalized least squares (GLS) estimator. Simulation studies and applications to Raman spectroscopy data are provided to demonstrate the proposed model.