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 10. Face Recognition and Face Emotion Recognition

In the previous chapter, we looked at how to detect objects such as a car, chair, cat, and dog, using Convolutional Neural Networks and the YOLO (You Only Look Once) algorithm. In this chapter, we will be detecting human faces. Apart from that, we will be looking at expressions of the human face, such as a human face seeming happy, neutral, sad, and so on. So, this chapter will be interesting, because we are going to focus on some of the latest techniques of face detection and face emotion recognition. We are dividing this chapter into two parts:

  • Face detection

  • Face emotion recognition

First, we will cover how face detection works, and after that, we will move on to the face emotion recognition part. In general, we will cover the following topics in this chapter:

  • Introducing the problem statement

  • Setting up the coding environment

  • Understanding the concepts of face recognition

  • Approaches for implementing face recognition

  • Understanding the...