Book Image

Machine Learning Solutions

Book Image

Machine Learning Solutions

Overview of this book

Machine learning (ML) helps you find hidden insights from your data without the need for explicit programming. This book is your key to solving any kind of ML problem you might come across in your job. You’ll encounter a set of simple to complex problems while building ML models, and you'll not only resolve these problems, but you’ll also learn how to build projects based on each problem, with a practical approach and easy-to-follow examples. The book includes a wide range of applications: from analytics and NLP, to computer vision domains. Some of the applications you will be working on include stock price prediction, a recommendation engine, building a chat-bot, a facial expression recognition system, and many more. The problem examples we cover include identifying the right algorithm for your dataset and use cases, creating and labeling datasets, getting enough clean data to carry out processing, identifying outliers, overftting datasets, hyperparameter tuning, and more. Here, you'll also learn to make more timely and accurate predictions. In addition, you'll deal with more advanced use cases, such as building a gaming bot, building an extractive summarization tool for medical documents, and you'll also tackle the problems faced while building an ML model. By the end of this book, you'll be able to fine-tune your models as per your needs to deliver maximum productivity.
Table of Contents (19 chapters)
Machine Learning Solutions
Foreword
Contributors
Preface
Index

Chapter 8. Developing Chatbots

The year 2017 was all about chatbots, and that continues in 2018. Chatbots are not new at all. The concept of chatbots has been around since the 1970s. Sometimes, a chatbot application is also referred to as a question-answering system. This is a more specific technical term for a chatbot. Let's take a step into history. Lunar was the first rule-based question-answering system. Using this system, geologists could ask questions regarding the moon rock from the Apollo missions. In order to improvise the rule-based system that was used in the Apollo mission, we had to find out a way to encode pattern-based question and answers. For this purpose, Artificial Intelligence Markup Language was used, also called AIML. This helps the programmer code less lines of code in order to achieve the same result that we generated by using a hardcoded pattern-based system. With recent advances in the field of Machine Learning (ML), we can build a chatbot without hardcoded responses...