Book Image

Machine Learning with LightGBM and Python

By : Andrich van Wyk
3 (1)
Book Image

Machine Learning with LightGBM and Python

3 (1)
By: Andrich van Wyk

Overview of this book

Machine Learning with LightGBM and Python is a comprehensive guide to learning the basics of machine learning and progressing to building scalable machine learning systems that are ready for release. This book will get you acquainted with the high-performance gradient-boosting LightGBM framework and show you how it can be used to solve various machine-learning problems to produce highly accurate, robust, and predictive solutions. Starting with simple machine learning models in scikit-learn, you’ll explore the intricacies of gradient boosting machines and LightGBM. You’ll be guided through various case studies to better understand the data science processes and learn how to practically apply your skills to real-world problems. As you progress, you’ll elevate your software engineering skills by learning how to build and integrate scalable machine-learning pipelines to process data, train models, and deploy them to serve secure APIs using Python tools such as FastAPI. By the end of this book, you’ll be well equipped to use various -of-the-art tools that will help you build production-ready systems, including FLAML for AutoML, PostgresML for operating ML pipelines using Postgres, high-performance distributed training and serving via Dask, and creating and running models in the Cloud with AWS Sagemaker.
Table of Contents (17 chapters)
1
Part 1: Gradient Boosting and LightGBM Fundamentals
6
Part 2: Practical Machine Learning with LightGBM
10
Part 3: Production-ready Machine Learning with LightGBM

Ensemble Learning – Bagging and Boosting

In the previous chapter, we covered the fundamentals of machine learning (ML), working with data and models, and concepts such as overfitting and supervised learning (SL). We also introduced decision trees and saw how to apply them practically in scikit-learn.

In this chapter, we will learn about ensemble learning and the two most significant types of ensemble learning: bagging and boosting. We will cover the theory and practice of applying ensemble learning to decision trees and conclude the chapter by focusing on more advanced boosting methods.

By the end of this chapter, you will have a good understanding of ensemble learning and how to practically build decision tree ensembles through bagging or boosting. We will also be ready to dive deep into LightGBM, including its more advanced theoretical aspects.

The main topics we will cover are set out here:

  • Ensemble learning
  • Bagging and random forests
  • Gradient-boosted...