Book Image

Automated Machine Learning

By : Adnan Masood
Book Image

Automated Machine Learning

By: Adnan Masood

Overview of this book

Every machine learning engineer deals with systems that have hyperparameters, and the most basic task in automated machine learning (AutoML) is to automatically set these hyperparameters to optimize performance. The latest deep neural networks have a wide range of hyperparameters for their architecture, regularization, and optimization, which can be customized effectively to save time and effort. This book reviews the underlying techniques of automated feature engineering, model and hyperparameter tuning, gradient-based approaches, and much more. You'll discover different ways of implementing these techniques in open source tools and then learn to use enterprise tools for implementing AutoML in three major cloud service providers: Microsoft Azure, Amazon Web Services (AWS), and Google Cloud Platform. As you progress, you’ll explore the features of cloud AutoML platforms by building machine learning models using AutoML. The book will also show you how to develop accurate models by automating time-consuming and repetitive tasks in the machine learning development lifecycle. By the end of this machine learning book, you’ll be able to build and deploy AutoML models that are not only accurate, but also increase productivity, allow interoperability, and minimize feature engineering tasks.
Table of Contents (15 chapters)
1
Section 1: Introduction to Automated Machine Learning
5
Section 2: AutoML with Cloud Platforms
12
Section 3: Applied Automated Machine Learning

Automated feature engineering

Feature engineering is the art and science of extracting and selecting the right attributes from the dataset. It is an art because it not only requires subject matter expertise, but also domain knowledge and an understanding of ethical and social concerns. From a scientific perspective, the importance of a feature is highly correlated with its resulting impact on the outcome. Feature importance in predictive modeling measures how much a feature influences the target, hence making it easier in retrospect to assign ranking to attributes with the most impact. The following diagram explains how the iterative process of automated feature generation works, by generating candidate features, ranking them, and then selecting the specific ones to become part of the final feature set:

Figure 2.5 – Iterative feature generation process by Zoller et al. Benchmark and survey of automated ML frameworks, 2020

Extracting a feature from the...