Amazon Lex is "a service for building conversational interfaces into any application using voice and text."
What questions should have this tag?
Questions related to Amazon-Lex, AWS-Lex should be asked here. Mostly AWS-Lambda is used as the backend for Lex bots, so those questions are also valid as they are both connected.
Some basic definitions
Chatbots: Chatbots are computer programs designed to simulate conversation with human users, especially over the Internet.
Amazon Lex: Amazon Lex is a service for building conversational interfaces using voice and text.
Amazon Lambda: AWS Lambda is a compute service that lets you run code without provisioning or managing servers. AWS Lambda executes your code only when needed and scales automatically, from a few requests per day to thousands per second.
Brief introduction to the subject
Amazon Lex is a service for building conversational interfaces using voice and text. Powered by the same conversational engine as Alexa, Amazon Lex provides high quality speech recognition and language understanding capabilities, enabling addition of sophisticated, natural language ‘chatbots’ to new and existing applications.
Amazon Lex leverages AWS Lambda for Intent fulfillment, Amazon Cognito for user authentication, and Amazon Polly for text to speech. In addition, AWS Amplify can be used to automatically provision bots from a template.
Important links for learning more
https://aws.amazon.com/lex/
http://docs.aws.amazon.com/lex/latest/dg/what-is.html
http://docs.aws.amazon.com/lambda/latest/dg/welcome.html
