Kaggle provides a wide variety of data sets perfect for machine learning applications, and Nexosis offers a web-based REST API that can be used to combine with Couchbase Server. To start using Nexosis, create an account, import a dataset, set up a session, complete the model, test it out, and then use CURL requests in N1QL queries to run it against data stored in Couchbase. By doing so, developers can leverage machine learning for tasks such as sentiment analysis, classification, regression, forecasting, and anomaly detection. The Nexosis API can be easily integrated into Couchbase using CURL requests, allowing users to perform complex tasks with minimal code.