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Build a self-service digital assistant using Amazon Lex and Amazon Bedrock Knowledge Bases

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This article discusses how to build a self-service digital assistant using Amazon Lex and Knowledge Bases for Amazon Bedrock. It provides a step-by-step guide on creating a chatbot that can answer questions based on a knowledge base powered by large language models and retrieval-augmented generation.

Specifically, the article covers:

  • Overview of the solution architecture and workflow
  • Prerequisites for implementing the solution
  • Steps to create a knowledge base in Amazon Bedrock
  • Steps to create an Amazon Lex bot and add the built-in QnAIntent
  • Deploying a sample Amazon Lex web UI
  • Testing and using the chatbot
  • Clean-up steps to avoid future charges


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