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CEO

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Facing up to a paradox

Watch those worry lines. Face-reading software has scrutinised videos of 200 CEOs of major companies, including FedEx and Citigroup, and found a link between negative emotions and positive financial performance. Firms with CEOs that wore fearful expressions saw a 0.4 per cent rise in stock prices within the following week, while those who showed disgust saw a 9.3 per cent increase in profits in the following quarter.

$4.5 million

It’s the biggest speaking fee ever. But there’s a catch: to earn the IBM Watson AI X Prize, you must design the artificial intelligence that gives the best 18-minute talk at the TED2020 conference.

Picked out of hats

Prospective Google employees are set this puzzle. A hundred people stand in a line wearing red or blue hats. Each only sees the heads of those in front. How can they devise a strategy to maximise the chance of guessing what colour hat they themselves are wearing? A neural network based on one built by Google’s DeepMind team has found a solution, one that could help groups of robots work together to solve puzzles by sharing information.

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