NoSQL databases are non-relational databases that store data in a flexible and schema-free format, allowing for fast and scalable data processing. NoSQL databases are used in many applications, such as real-time analytics, content management, and social networking. Popular NoSQL databases include MongoDB, Cassandra, and Redis. See more Natural Language Processing (NLP) is a subfield of artificial intelligence that focuses on the interaction between computers and humans using natural language. NLP is used in many applications, such as chatbots, language translation, and sentiment analysis. Popular NLP platforms include Google Cloud Natural Language API, Amazon Comprehend, and Microsoft Azure Text Analytics.