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Data Cleaning and Exploration with Machine Learning Get to grips with machine learning techniques [#473101]
English | 2022 | ISBN: 1803241675 | 542 pages | True PDF | 37.34 MB
Explore supercharged machine learning techniques to take care of your data laundry loads
Key Features
Learn how to prepare data for machine learning processesUnderstand which algorithms are based on prediction objectives and the properties of the dataExplore how to interpret and evaluate the results from machine learning
Book Description
Many individuals who know how to run machine learning algorithms do not have a good sense of the statistical assumptions they make and how to match the properties of the data to the algorithm for the best results.
As you start with this book, models are carefully chosen to help you grasp the underlying data, including in-feature importance and correlation, and the distribution of features and targets. The first two parts of the book introduce you to techniques for preparing data for ML algorithms, without being bashful about using some ML techniques for data cleaning, including anomaly detection and feature selection. The book then helps you apply that knowledge to a wide variety of ML tasks. You'll gain an understanding of popular supervised and unsupervised algorithms, how to prepare data for them, and how to evaluate them. Next, you'll build models and understand the relationships in your data, as well as perform cleaning and exploration tasks with that data. You'll make quick progress in studying the distribution of variables, identifying anomalies, and examining bivariate relationships, as you focus more on the accuracy of predictions in this book.
By the end of this book, you'll be able to deal with complex data problems using unsupervised ML algorithms like principal component analysis and k-means clustering.
What you will learn
Explore essential data cleaning and exploration techniques to be used before running the most popular machine learning algorithmsUnderstand how to perform preprocessing and feature selection, and how to set up the data for testing and validationModel continuous targets with supervised learning algorithmsModel binary and multiclass targets with supervised learning algorithmsExecute clustering and dimension reduction with unsupervised learning algorithmsUnderstand how to use regression trees to model a continuous target
Who this book is for
This book is for professional data scientists, particularly those in the first few years of their career, or more experienced analysts who are relatively new to machine learning. Readers should have prior knowledge of concepts in statistics typically taught in an undergraduate introductory course as well as beginner-level experience in manipulating data programmatically.
Table of Contents
Examining the Distribution of Features and TargetsExamining Bivariate and Multivariate Relationships between Features and TargetsIdentifying and Fixing Missing ValuesEncoding, Transforming, and Scaling FeaturesFeature SelectionPreparing for Model EvaluationLinear Regression ModelsSupport Vector RegressionK-Nearest Neighbor, Decision Tree, Random Forest and Gradient Boosted RegressionLogistic RegressionDecision Trees and Random Forest ClassificationK-Nearest Neighbors for ClassificationSupport Vector Machine ClassificationNaive Bayes ClassificationPrincipal Component AnalysisK-Means and DBSCAN Clustering
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