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[ M A R K E T R E V I E W | M A C H I N E L E A R N I N G ] a few days with only the best ones surviving.” Opening to a bigger market Holman says the development of machine learning has come as in- vestors and data scientists employ less preconceived strategies with their AI programmes. “People who did this in the 90s had a propensity to overfit data that was hard to control,” says Hol- man, who joined from Highbridge, one of the leading quantitative hedge funds in the world. “Because of innovations in compute power and technology this is much more robust now. You can explore more strategies and not overfit, which is one of the definitions of successful investing.” Rebellion Research is anoth- er forerunner in this field. The company has been using machine learning in some form or other for the last ten years since it was founded by four partners with mathematical but little financial background. The company’s ma- chine learning programme looks for historical macro patterns and connections and makes investment decisions based on this. While not always correct, it has a 60% accura- cy ratio, says Alexander Fleiss, one of the four founders. “The system is dispassionate,” says Fleiss. “It looks for patterns of relationships. We know we’re wrong 30% to 40% of the time but we are right the rest.” But while sophisticated hedge funds have been earliest movers in this field, the next few years could see the potential benefits of AI opening up to a bigger market. Quantopian is a Boston-head- AI for the masses The aim is for AI to one day be available to the masses. Bloomberg, for one, has been developing AI technologies for clients to use on its terminal. Applications range from news text and financial filing analysis to produce sentiment analysis to a question and answering service which provides users answers to complicated financial questions that require the backing of Bloomberg’s data resources to answer them. Other applications include predictive analytics - which provide automatic recom- mendations of events of interest, or content to consume based on statistical models. “The interest in AI has changed,” says Gary Kazantsev, head of the machine learning group at Bloomberg. “Five to ten years ago people thought this was quite esoteric. Now everyone around the world wants to have machine learning incorporated into the business.” quartered firm that provides an online platform for users to contribute investment algorithms with the best being allocated capital, ranging from $100,000 to $3 million per algorithm. It is, in effect, a form of crowd-sourcing for algorithms. The company has been funded by none other than Point72 Asset Management run by Steve Cohen, renowned as one of the most technology-savvy hedge Issue 52 TheTradeNews.com 43