How Grubhub Analyzed 4,000 Dishes to Predict Your Next Order

Online food-delivery service spent eight years resolving a classic problem of unstructured data. And today Grubhub does indeed have an algorithm that can look across a country’s worth of take-out orders and tell a user what Indian joint near them delivers the most popular chicken tikka masala. But getting there required solving a seemingly impossible data problem, some high-end machine …