Here's how Google Play is using AI to improve search Trying to find an app on the Google Play Store can be an exercise in frustration, especially if it's an eagerly anticipated app or new release. Things don't get much better for mega-popular apps, as the search results are often cluttered with irrelevant results. Fortunately, Google is working on a solution, using machine learning to get better results. "Searches by topic require more than simply indexing apps by query terms; they require an understanding of the topics associated with an app," the team of software engineers wrote. The work required machine-learning approaches, but one big challenge for machine learning was the size of the data-set to work with.