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

Transfer Learning


In this section, we will look at what Transfer Learning is and how it is going to be useful for us as we build real-time object detection. We divide this section into the following parts:

  • What is Transfer Learning?

  • What is a pre-trained model?

  • Why should we use a pre-trained model?

  • How can we use the pre-trained model?

Let's start with the first question.

What is Transfer Learning?

We will be looking at the intuition behind Transfer Learning first and, then, we will cover its technical definition. Let me explain this concept through a simple teacher-student analogy. A teacher has many years of experience in teaching certain specific topics or subjects. Whatever information the teacher has, they deliver it to their students. So, the process of teaching is all about transferring knowledge from the teacher to the student. You can refer to the following figure:

Figure 9.3: An overview of Transfer Learning

Now, remember this analogy; we will apply it to neural networks. When we train...