Data Science: guida ai principi e alle tecniche base della scienza dei dati (Italian Edition)

Questo libro si rivolge ai programmatori che vogliono entrare nel mondo della scienza dei dati scoprendo come unire competenze che spaziano dalla matematica alle analisi di business attraverso - naturalmente - la programmazione. Lo scopo è insegnare come affrontare dati eterogenei trasformandoli in idee e insight. Nel corso dei vari capitoli vengono presentati gli elementi che un data scientist deve padroneggiare: la definizione del dominio di analisi, il recupero e la pulizia di dati grezzi, il calcolo delle probabilità, i modelli statistici, fino all'applicazione di algoritmi di machine learning. Non mancano approfondimenti su come normalizzare e preparare i dati prima di un'analisi, oltre a suggerimenti su come presentare e comunicare i risultati in modo efficace. Tutti i passaggi chiave sono corredati da esempi di pseudocodice per illustrare al meglio gli algoritmi in uso mentre gli esempi di codice utilizzano prevalentemente il linguaggio Python.

Learn the techniques and math you need to start making sense of your data

About This Book

• Enhance your knowledge of coding with data science theory for practical insight into data science and analysis
• More than just a math class, learn how to perform real-world data science tasks with R and Python
• Create actionable insights and transform raw data into tangible value

Who This Book Is For

You should be fairly well acquainted with basic algebra and should feel comfortable reading snippets of R/Python as well as pseudo code. You should have the urge to learn and apply the techniques put forth in this book on either your own data sets or those provided to you. If you have the basic math skills but want to apply them in data science or you have good programming skills but lack math, then this book is for you.

What You Will Learn

• Get to know the five most important steps of data science
• Use your data intelligently and learn how to handle it with care
• Bridge the gap between mathematics and programming
• Learn about probability, calculus, and how to use statistical models to control and clean your data and drive actionable results
• Build and evaluate baseline machine learning models
• Explore the most effective metrics to determine the success of your machine learning models
• Create data visualizations that communicate actionable insights
• Read and apply machine learning concepts to your problems and make actual predictions

In Detail

Need to turn your skills at programming into effective data science skills? Principles of Data Science is created to help you join the dots between mathematics, programming, and business analysis. With this book, you'll feel confident about asking—and answering—complex and sophisticated questions of your data to move from abstract and raw statistics to actionable ideas.

With a unique approach that bridges the gap between mathematics and computer science, this books takes you through the entire data science pipeline. Beginning with cleaning and preparing data, and effective data mining strategies and techniques, you'll move on to build a comprehensive picture of how every piece of the data science puzzle fits together. Learn the fundamentals of computational mathematics and statistics, as well as some pseudocode being used today by data scientists and analysts. You'll get to grips with machine learning, discover the statistical models that help you take control and navigate even the densest datasets, and find out how to create powerful visualizations that communicate what your data means.

Style and approach

This is an easy-to-understand and accessible tutorial. It is a step-by-step guide with use cases, examples, and illustrations to get you well-versed with the concepts of data science. Along with explaining the fundamentals, the book will also introduce you to slightly advanced concepts later on and will help you implement these techniques in the real world.

Learn the techniques and math you need to start making sense of your data About This Book • Enhance your knowledge of coding with data science theory for practical insight into data science and analysis • More than just a math class, learn how to perform real-world data science tasks with R and Python • Create actionable insights and transform raw data into tangible value Who This Book Is For You should be fairly well acquainted with basic algebra and should feel comfortable reading snippets of R/Python as well as pseudo code. You should have the urge to learn and apply the techniques put forth in this book on either your own data sets or those provided to you. If you have the basic math skills but want to apply them in data science or you have good programming skills but lack math, then this book is for you. What You Will Learn • Get to know the five most important steps of data science • Use your data intelligently and learn how to handle it with care • Bridge the gap between mathematics and programming • Learn about probability, calculus, and how to use statistical models to control and clean your data and drive actionable results • Build and evaluate baseline machine learning models • Explore the most effective metrics to determine the success of your machine learning models • Create data visualizations that communicate actionable insights • Read and apply machine learning concepts to your problems and make actual predictions In Detail Need to turn your skills at programming into effective data science skills? Principles of Data Science is created to help you join the dots between mathematics, programming, and business analysis. With this book, you'll feel confident about asking--and answering--complex and sophisticated questions of your data to move from abstract and raw statistics to actionable ideas. With a unique approach that bridges the gap between mathematics and computer science, this books takes you through the entire data science pipeline. Beginning with cleaning and preparing data, and effective data mining strategies and techniques, you'll move on to build a comprehensive picture of how every piece of the data science puzzle fits together. Learn the fundamentals of computational mathematics and statistics, as well as some pseudocode being used today by data scientists and analysts. You'll get to grips with machine learning, discover the statistical models that help you take control and navigate even the densest datasets, and find out how to create powerful visualizations that communicate what your data means. Style and approach This is an easy-to-understand and accessible tutorial. It is a step-by-step guide with use cases, examples, and illustrations to get you well-versed with the concepts of data science. Along with explaining the fundamentals, the book will also introduce you to slightly advanced concepts later on and will help you implement these techniques in the real world About This BookEnhance your knowledge of coding with data science theory for practical insight into data science and analysisMore than just a math class, learn how to perform real-world data science tasks with R and PythonCreate actionable insights and transform raw data into tangible valueWho This Book Is ForYou should be fairly well acquainted with basic algebra and should feel comfortable reading snippets of R/Python as well as pseudo code. You should have the urge to learn and apply the techniques put forth in this book on either your own data sets or those provided to you. If you have the basic math skills but want to apply them in data science or you have good programming skills but lack math, then this book is for you.What You Will LearnGet to know the five most important steps of data scienceUse your data intelligently and learn how to handle it with careBridge the gap between mathematics and programmingLearn about probability, calculus, and how to use statistical models to control and clean your data and drive actionable resultsBuild and evaluate baseline machine learning modelsExplore the most effective metrics to determine the success of your machine learning modelsCreate data visualizations that communicate actionable insightsRead and apply machine learning concepts to your problems and make actual predictionsIn DetailPrinciples of Data Science is designed to help you join the dots between mathematics, programming, and business analysis. With this book, you'll feel confident about asking―and answering―complex and sophisticated questions of your data to move from abstract and raw statistics to actionable ideas.With a unique approach that bridges the gap between mathematics and computer science, you'll go on an exciting journey to becoming a data scientist. Taking you through the entire data science pipeline beginning with cleaning and preparing data, and providing effective data mining strategies and techniques, you'll begin to build a comprehensive picture of how every piece of the data science puzzle fits together. You will learn the fundamentals of computational mathematics and statistics, as well as some pseudocode being used today by data scientists and analysts. You'll get to grips with machine learning, get to know some useful statistical models that help you take control and navigate even the most dense datasets, and find out how to create powerful visualizations that communicate what your data means.