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Large language models (LLMs) are increasingly used in learning algorithms, evaluations, and optimization tasks. Recent studies have shown that using LLM-based optimizers to automatically optimize model prompts, demonstrations, predictions themselves, or other components can significantly enhance the performance of AI systems, as demonstrated by frameworks such as DSPy and TextGrad. However, optimizers built on language models themselves are usually designed by humans with manual design choices; optimizers themselves are not optimized. Moreover, these optimizers are general purpose by design, to be useful to a broad audience, and are not tailored for specific tasks. To address these challenges, we propose metaTextGrad, which focuses on designing a meta-optimizer to further enhance existing optimizers and align them to be good optimizers for a given task. Our approach consists of two key components: a meta prompt optimizer and a meta structure optimizer. The combination of these two significantly improves performance across multiple benchmarks, achieving an average absolute performance improvement of up to 6% compared to the best baseline.

Foundation models demand advanced data processing for their vast, multimodal datasets.

A year ago, Air India flight 171 crashed less than a minute after taking off from Ahmedabad airport in the western Indian state of Gujarat, en route for London. The official investigation that followed has sparked intense controversy, in India and beyond, with some questioning its integrity amid claims of conflicts of interest. It is not the first time such an investigation has proved contentious. So is it time for a different approach when investigating air crashes? It was a hot and dry afternoon on 12 June last year, when Flight 171 left the terminal at Sardar Vallabhbhai Patel Airport in Ahmedabad. Settling into their seats for the nine-and-a-half-hour journey to London were 230 passengers, 53 of them British citizens. Looking after them were 10 cabin crew.

Can Americans spell the National Spelling Bee's winning words? The BBC challenged Americans to spell words used in the last three Scripps National Spelling Bee competitions. Shrey Parikh, a 14-year-old, won the competition this year after correctly spelling 32 words in a 90-second lighting round tiebreaker. He defeated 12-year-old Ishaan Gupta, who spelled 25 words correctly. Parikh won out against 247 spellers competing in the annual contest, aged between nine and 15, taking home a $52,000 (£39,000) cash prize.

The world's first'hovertrain' could reach speeds of 270 mph in the 1960s But the futuristic Aérotrain never saw the light of day. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. This cancelled Mongolian postage stamp shows the Aérotrain Orleans, circa 1979. Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy .

We analysed thousands of Trump's posts - here's what we found In 2026, Donald Trump's use of social media has escalated. The BBC sifted through thousands of posts on his platform Truth Social to analyse what the President has been saying and when. What was the busiest day? When are the busiest hours? What type of content does President Trump share?

Fans react to Stephen Colbert's final show Fans lined up outside the Ed Sullivan Theater one last time for "The Late Show" as Stephen Colbert prepared to host his final episode, marking the end of the franchise's 33-year run on CBS. The network announced last summer that the show would end, calling it "purely a financial decision against a challenging backdrop in late night. Colbert took on the show on September 2015 after David Letterman retired from the role he'd held for 22 years. Rescuers removed the vehicle from near the shoreline and police arrested the driver, who was attempting to use the vehicle's wade mode. As part of the ongoing investigation into the crash that killed 14 people, officials released footage showing the engine detaching during takeoff.

Air France and Airbus have been found guilty of manslaughter over a 2009 plane crash which killed 228 people. The Paris Appeals Court found the airline and aircraft manufacturer guilty of corporate manslaughter over the incident, in which flight AF447 between Rio de Janeiro and Paris crashed into the Atlantic Ocean. The passenger jet stalled during a storm and plunged into the water, killing all on board. A court had previously cleared the companies in April 2023 but they were found guilty after this appeal. The Airbus A330 vanished from radars during a storm, with its wreckage found after a long search of 10,000 sq km (3,860 sq miles) of sea floor.

The LinkedIn cofounder now has an AI drug discovery startup--and thinks not asking chatbots for medical advice is "bordering on committing malpractice." Following a three-decade career at the helm of some of Silicon Valley's most powerful companies--cofounding LinkedIn and sitting on the boards of PayPal and OpenAI-- Reid Hoffman recently turned his attention to health care. Hoffman's startup, Manas AI, is building an AI engine that aims to fast-track the traditionally slow process of drug discovery for various cancers. Inspired by a dinner with renowned cancer physician Siddhartha Mukherjee, the company's cofounder and CEO, its mission statement is to "shift drug discovery from a decade-long process to one that takes a few years." But Hoffman's enthusiasm for generative AI, in particular, stretches far beyond novel drug targets and small molecules.