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[ M A R K E T R E V I E W funds in the market. Despite the backing, Quantopian is opening its arms to a more universal, less elite, investment audience. Contributors to Quantopian come from diverse backgrounds ranging from data science to financial engineering, software development to chemistry and academia. Each author is paid 10% of the algorithm’s net profits, while retaining ownership of the intellectual property. The next frontier Last month the company started to deploy its first tranches of seed capital into some 20 strategies, with each algorithm being allocat- ed up to $3 million—the intention is to build this up to $50 million by the end of the year. Thomas Wiecki, director of data science at Quantopian, says the invest- ment market is moving towards machines. In particular towards deep learning processes. The latter is applied to algorithms which can discover patterns and complex relationships without being told what to look for. “Machine learning can process and correlate huge amounts of data | M A C H I N E L E A R N I N G ] using machine learning in a trading algorithm on Quantopian, deep learning is the next frontier. Deep learning can successfully learn complex features directly from the “Everyone around the world wants to have machine learning incorporated into the business.” GARY KAZANTSEV, HEAD OF THE MACHINE LEARNING GROUP, BLOOMBERG raw data and build higher-order connections something which is unfeasible for hand engineering where the number of potential inputs is huge.” The application of deep learning in quant finance is still new—but participants believe it could be the next step in the evolution of machine investing. Investors have also been looking to use the technology for a number of other investment purposes. Earlier this year Axa Investment Managers launched a nine-month trial to test “Deep learning can successfully learn complex features directly from the raw data and build higher-order connections.” THOMAS WIECKI, DIRECTOR OF DATA SCIENCE AT QUANTOPIAN to identify predictive signals—that definitely provides the edge when it comes to finance,” says Wiecki. “While there are many examples of 44 TheTrade Summer 2017 sources of news and other data sources to understand media perception of stocks or companies. AllianceBernstein, meanwhile, has been focusing on techniques to the machine learning technology of MKT MediaStats which runs a sentiment analysis service for investors, scouring some 30,000 learn why a particular sentiment might arise, using machine learn- ing techniques. But not everyone is convinced about the market’s readiness for machine learning. The rules of the finance game are not constant like chess or Go. At the same time data financial datasets are much noisier than those typical of the appli- cations where machine learning has worked best so far. These days financial data is growing in diversity, consisting not only of the obvious numbers and text but also more unusual information sources, ranging from meteorologi- cal diagrams and weather forecasts to social media. While it is vastly cheaper to access and store finan- cial data the challenge of using it under these strictures remains tough. And, of course, getting an AI system to handle the quirks of the markets which are impacted by human psychology, is another question altogether. But these are all surmountable challenges. It seems that the market is edging ever closer to the day when the machines will be investing for us.