Book Image

Natural Language Processing with AWS AI Services

By : Mona M, Premkumar Rangarajan
Book Image

Natural Language Processing with AWS AI Services

By: Mona M, Premkumar Rangarajan

Overview of this book

Natural language processing (NLP) uses machine learning to extract information from unstructured data. This book will help you to move quickly from business questions to high-performance models in production. To start with, you'll understand the importance of NLP in today’s business applications and learn the features of Amazon Comprehend and Amazon Textract to build NLP models using Python and Jupyter Notebooks. The book then shows you how to integrate AI in applications for accelerating business outcomes with just a few lines of code. Throughout the book, you'll cover use cases such as smart text search, setting up compliance and controls when processing confidential documents, real-time text analytics, and much more to understand various NLP scenarios. You'll deploy and monitor scalable NLP models in production for real-time and batch requirements. As you advance, you'll explore strategies for including humans in the loop for different purposes in a document processing workflow. Moreover, you'll learn best practices for auto-scaling your NLP inference for enterprise traffic. Whether you're new to ML or an experienced practitioner, by the end of this NLP book, you'll have the confidence to use AWS AI services to build powerful NLP applications.
Table of Contents (23 chapters)
1
Section 1:Introduction to AWS AI NLP Services
5
Section 2: Using NLP to Accelerate Business Outcomes
15
Section 3: Improving NLP Models in Production

Adding human reviews to your document processing pipelines

We covered how A2I works in general with any AWS AI service using an architecture. In this section, we will talk specifically about how Amazon A2I integrates with Amazon Textract so that you can automate your existing document workflows with a HITL. We will also show you a walkthrough on how to set up a human review workflow using the AWS Console.

Let's start by walking through how Amazon A2I works with Amazon Textract:

Figure 13.2 – Amazon A2I with Amazon Textract

Your scanned documents are sent to Amazon Textract. Amazon Textract extracts text, key-value pairs, and tables from the document. Now for this extracted text, key-value pairs, and tables, you also get confidence scores. You can set up a threshold that Amazon A2I triggers to create human review loops. You can set up a threshold with Amazon Textract for three things:

  • For any missing keys in case of key-value pair detection...