Hands-On Machine Learning with scikit-learn and Scientific Python Toolkits

A practical guide to implementing supervised and unsupervised machine learning algorithms in Python

Tarek Amr 지음

Packt(GCO Science) 2020년 07월 24일 출간

작품소개

책소개

Integrate scikit-learn with various tools such as NumPy, pandas, imbalanced-learn, and scikit-surprise and use it to solve real-world machine learning problems

▶Book Description
Machine learning is applied everywhere, from business to research and academia, while scikit-learn is a versatile library that is popular among machine learning practitioners. This book serves as a practical guide for anyone looking to provide hands-on machine learning solutions with scikit-learn and Python toolkits.

The book begins with an explanation of machine learning concepts and fundamentals, and strikes a balance between theoretical concepts and their applications. Each chapter covers a different set of algorithms, and shows you how to use them to solve real-life problems. You'll also learn about various key supervised and unsupervised machine learning algorithms using practical examples. Whether it is an instance-based learning algorithm, Bayesian estimation, a deep neural network, a tree-based ensemble, or a recommendation system, you'll gain a thorough understanding of its theory and learn when to apply it. As you advance, you'll learn how to deal with unlabeled data and when to use different clustering and anomaly detection algorithms.

By the end of this machine learning book, you'll have learned how to take a data-driven approach to provide end-to-end machine learning solutions. You'll also have discovered how to formulate the problem at hand, prepare required data, and evaluate and deploy models in production.

▶What You Will Learn
？Understand when to use supervised, unsupervised, or reinforcement learning algorithms
？Find out how to collect and prepare your data for machine learning tasks
？Tackle imbalanced data and optimize your algorithm for a bias or variance tradeoff
？Apply supervised and unsupervised algorithms to overcome various machine learning challenges
？Employ best practices for tuning your algorithm's hyper parameters
？Discover how to use neural networks for classification and regression
？Build, evaluate, and deploy your machine learning solutions to production

▶Key Features
？Delve into machine learning with this comprehensive guide to scikit-learn and scientific Python
？Master the art of data-driven problem-solving with hands-on examples
？Foster your theoretical and practical knowledge of supervised and unsupervised machine learning algorithms

▶Who This Book Is For
This book is for data scientists, machine learning practitioners, and anyone who wants to learn how machine learning algorithms work and to build different machine learning models using the Python ecosystem. The book will help you take your knowledge of machine learning to the next level by grasping its ins and outs and tailoring it to your needs. Working knowledge of Python and a basic understanding of underlying mathematical and statistical concepts is required.

목차

▶TABLE of CONTENTS
▷ Section 1: Supervised Learning
？Chapter 1: Introduction to Machine Learning
？Chapter 2: Making Decisions with Trees
？Chapter 3: Making Decisions with Linear Equations
？Chapter 4: Preparing Your Data
？Chapter 5: Image Processing with Nearest Neighbors
？Chapter 6: Classifying Text Using Naive Bayes

▷ Section 2: Advanced Supervised Learning
？Chapter 7: Neural Networks ？ Here Comes Deep Learning
？Chapter 8: Ensembles ？ When One Model Is Not Enough
？Chapter 9: The Y is as Important as the X
？Chapter 10: Imbalanced Learning ？ Not Even 1% Win the Lottery

▷ Section 3: Unsupervised Learning and More
？Chapter 11: Clustering ？ Making Sense of Unlabeled Data
？Chapter 12: Anomaly Detection ？ Finding Outliers in Data
？Chapter 13: Recommender System ？ Getting to Know Their Taste

책 속으로

▶What this book covers
？ Chapter 1, Introduction to Machine Learning, will introduce you to the different machine learning paradigms, using examples from industry. You will also learn how to use data to evaluate the models you build.

？ Chapter 2, Making Decisions with Trees, will explain how decision trees work and teach you how to use them for classification as well as regression. You will also learn how to derive business rules from the trees you build.

？ Chapter 3, Making Decisions with Linear Equations, will introduce you to linear regression. After understanding its modus operandi, we will learn about related models such as ridge, lasso, and logistic regression. This chapter will also pave the way toward understanding neural networks later on in this book.

？ Chapter 4, Preparing Your Data, will cover how to deal with missing data using the impute functionality. We will then use scikit-learn, as well as an external library called categoricalencoding, to prepare the categorical data for the algorithms that we are going to use later on in the book.

？ Chapter 5, Image Processing with Nearest Neighbors, will explain the k-Nearest Neighbors algorithms and their hyperparameters. We will also learn how to prepare images for the nearest neighbors classifier.

？ Chapter 6, Classifying Text Using Naive Bayes, will teach you how to convert textual data into numbers and use machine learning algorithms to classify it. We will also learn about techniques to deal with synonyms and high data dimensionality.

？ Chapter 7, Neural Networks ？ Here Comes the Deep Learning, will dive into how to use neural networks for classification and regression. We will also learn about data scaling since it is a requirement for quicker convergence.

？ Chapter 8, Ensembles ？ When One Model Is Not Enough, will cover how to reduce the bias or variance of algorithms by combining them into an ensemble. We will also learn about the different ensemble methods, from bagging to boosting, and when to use each of them.

？ Chapter 9, The Y is as Important as the X, will teach you how to build multilabel classifiers. We will also learn how to enforce dependencies between your model outputs and make a classifier's probabilities more reliable with calibration.

？ Chapter 10, Imbalanced Learning ？ Not Even 1% Win the Lottery, will introduce the use of an imbalanced learning helper library and explore different ways for over- and undersampling. We will also learn how to use the sampling methods with the ensemble models.

？ Chapter 11, Clustering ？ Making Sense of Unlabeled Data, will cover clustering as an unsupervised learning algorithm for making sense of unlabeled data.

？ Chapter 12, Anomaly Detection ？ Finding Outliers in Data, will explore the different types of anomaly detection algorithms.

？ Chapter 13, Recommender Systems ？ Get to Know Their Taste, will teach you how to build a recommendation system and deploy it in production.

출판사 서평

▶ Preface
You have already seen Harvard Business Review describing data science as the sexiest job of the 21st century. You have been watching terms such as machine learning and artificial intelligence pop up around you in the news all the time. You aspire to join this league of machine learning data scientists soon. Or maybe, you are already in the field but want to take your career to the next level. You want to learn more about the underlying statistical and mathematical theory, and apply this new knowledge using the most commonly used tool among practitioners, scikit-learn.

This book is here for you. It begins with an explanation of machine learning concepts and fundamentals and strikes a balance between theoretical concepts and their applications. Each chapter covers a different set of algorithms and shows you how to use them to solve real-life problems. You'll also learn various key supervised and unsupervised machine learning algorithms using practical examples. Whether it is an instance-based learning algorithm, Bayesian estimation, a deep neural network, a tree-based ensemble, or a recommendation system, you'll gain a thorough understanding of its theory and learn when to apply it to real-life problems.

This book will not stop at scikit-learn, but will help you add even more tools to your toolbox. You will augment scikit-learn with other tools such as pandas, Matplotlib, imbalanced-learn, and scikit-surprise. By the end of this book, you will be able to orchestrate these tools together to take a data-driven approach to providing end-to-end machine learning solutions.

작가정보

저자(글) Tarek Amr

Tarek Amr has 8 years of experience in data science and machine learning. After finishing his postgraduate degree at the University of East Anglia, he worked in a number of startups and scale-up companies in Egypt and the Netherlands. This is his second data-related book. His previous book covered data visualization using D3.js. He enjoys giving talks and writing about different computer science and business concepts and explaining them to a wider audience. He can be reached on Twitter at @gr33ndata. He is happy to respond to all questions related to this book. Feel free to get in touch with him if any parts of the book need clarification or if you would like to discuss any of the concepts here in more detail.