Book Image

The Applied AI and Natural Language Processing Workshop

By : Krishna Sankar, Jeffrey Jackovich, Ruze Richards
Book Image

The Applied AI and Natural Language Processing Workshop

By: Krishna Sankar, Jeffrey Jackovich, Ruze Richards

Overview of this book

Are you fascinated with applications like Alexa and Siri and how they accurately process information within seconds before returning accurate results? Are you looking for a practical guide that will teach you how to build intelligent applications that can revolutionize the world of artificial intelligence? The Applied AI and NLP Workshop will take you on a practical journey where you will learn how to build artificial intelligence (AI) and natural language processing (NLP) applications with Amazon Web services (AWS). Starting with an introduction to AI and machine learning, this book will explain how Amazon S3, or Amazon Simple Storage Service, works. You’ll then integrate AI with AWS to build serverless services and use Amazon’s NLP service Comprehend to perform text analysis on a document. As you advance, the book will help you get to grips with topic modeling to extract and analyze common themes on a set of documents with unknown topics. You’ll also work with Amazon Lex to create and customize a chatbot for task automation and use Amazon Rekognition for detecting objects, scenes, and text in images. By the end of The Applied AI and NLP Workshop, you’ll be equipped with the knowledge and skills needed to build scalable intelligent applications with AWS.
Table of Contents (8 chapters)
Preface

3. Topic Modeling and Theme Extraction

Overview

This chapter describes the use of Topic Modeling to understand common themes in a document set by analyzing documents using Amazon Comprehend. You will learn the fundamentals of the algorithm used for Topic Modeling, Latent Dirichlet Allocation (LDA). Learning LDA will allow you to apply Topic Modeling to a multitude of unique business cases. You will then perform Topic Modeling on two documents with a known topic structure. By the end of this chapter, you will be able to extract and analyze common themes through Topic Modeling with Amazon Comprehend and describe the basics of Topic Modeling analysis. You will also be able to perform Topic Modeling on a set of documents and analyze the results.