Who is winning Europe's artificial intelligence battle?

If you think artificial intelligence is an entirely theoretical pursuit, a quick trip to Kaggle is illuminating. Kaggle is a website that runs competitions, sometimes with serious cash prizes, between teams vying to solve real-world problems by designing algorithms that trawl through big data sets. There are currently 17 competitions up and running. The biggest prize, $100,000 (£77,435), is being offered by an investment company for the team that reveals how news reports affect stock prices. The second and third biggest – both offering around $50,000 – seek to predict when earthquakes will occur and how loyal Brazilian shoppers are.