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

Case study – customer churn with PostgresML

Let’s revisit the customer churn problem for a telecommunications provider. As a reminder, the dataset consists of customers and their account and cost information associated with the telecommunication provider.

Data loading and preprocessing

Our data will typically already be available within the PostgreSQL database in a real-world setting. However, for our example, we will start by loading the data. First, we must create the table the data is loaded into:

CREATE TABLE pgml.telco_churn
(
    customerid       VARCHAR(100),
    gender           VARCHAR(100),
    seniorcitizen    BOOLEAN,
    partner          VARCHAR(10),
    dependents     ...