Microsoft's purchase of Swiftkey for 250 million this month was preceded by Google's 582 million for DeepMind in 2014, a buy vindicated by its subsequent ability to master the ancient Chinese game of Go. In 2012, Amazon bought Cambridge-based Evi Technologies, creator of a Siri-like product that can field users' questions. But if you can't afford to buy an AI startup, algorithms are still within reach. Enterprises with the cash, data and wherewithal are kick-starting their own machine-learning efforts in a bid to gain competitive advantage. In a Computerworld article, John Dodge details the work of sector leaders that are data-rich and savvy enough to develop their own algorithms in-house.