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

Creating a Custom Chatbot

In this section, we will create a custom chatbot to get stock market quotes using Amazon Lex. The bot will listen to our utterances for a valid intent: GetQuote. This signals to the bot that, for example, we had to get a stock market quote for a given stock ticker symbol, which will reside in a slot named ticker. The bot will then look up the quote for that ticker symbol from a freely available financial API named IEX, and will return the information to the user via a conversational response:

Note

A stock ticker symbol is the standard way in which stocks that are traded on an exchange, such as the New York Stock Exchange or NASDAQ, are represented. A sequence of alphabetical letters represents the company's stock that is being traded.

Figure 4.3: The chatbot's workflow

We can create a flowchart for this process, as shown in the following diagram. Let's go over it in further detail:

Figure...