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

Building the basic version of a chatbot


In this section, we will be building the basic version of a chatbot. Getting data is not an issue for any company nowadays but getting a domain-specific conversational dataset is challenging.

There are so many companies out there whose goal is to make an innovative domain-specific chatbot, but their major challenge is getting the right data. If you are facing the same issue, then this basic approach can help you in that. This basic version of a chatbot is based on the closed domain and the retrieval-based approach, which uses the rule-based system. So, let's start understanding each aspect of the rule-based system.

Why does the rule-based system work?

As I mentioned earlier, a rule-based system is the way to implementing a retrieval-based approach. Now, you may wonder why we need a rule-based system. Considering that we are living in the era of Machine Learning (ML), doesn't it sound old? Let me share my personal experience with you. I closely collaborate...