Sumptuous Supermarket has large amounts of data about its customers. To understand customer buying behavior, the company uses a process that automatically discovers connections in the collected data. Through this process, the company learns that people who buy carbonated drinks, typically also buy a pack of salted snacks. As a result, the manager of the supermarket places carbonated drinks near the shelf with chips and pretzels. In this scenario, Sumptuous Supermarket has most likely used _____.