as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
generate a real world application of nearest neighbour algorithm
user
nearest neighbor algorithm is often used in data mining to predict records that are similar to existing ones. for example, it can be used to predict online shopper's future orders based on the orders they have made in the past. it can also be used in recommendation systems, where it is used to recommend a product to a user based on the purchases or ratings of similar users.
assistant