Redfin CTO says machine learning needs human help

Machine learning can automate the handling of huge troves of data to help companies make and save money. However, they’re not without pitfalls, as the real estate tech company Redfin learned. As Redfin began building its own machine-learning capabilities, it ran into a problem: Employees weren’t using them. Bridget Frey, the firm’s CTO, said in…