Book Image

Principles of Data Science - Third Edition

By : Sinan Ozdemir
Book Image

Principles of Data Science - Third Edition

By: Sinan Ozdemir

Overview of this book

Principles of Data Science bridges mathematics, programming, and business analysis, empowering you to confidently pose and address complex data questions and construct effective machine learning pipelines. This book will equip you with the tools to transform abstract concepts and raw statistics into actionable insights. Starting with cleaning and preparation, you’ll explore effective data mining strategies and techniques before moving on to building a holistic picture of how every piece of the data science puzzle fits together. Throughout the book, you’ll discover statistical models with which you can control and navigate even the densest or the sparsest of datasets and learn how to create powerful visualizations that communicate the stories hidden in your data. With a focus on application, this edition covers advanced transfer learning and pre-trained models for NLP and vision tasks. You’ll get to grips with advanced techniques for mitigating algorithmic bias in data as well as models and addressing model and data drift. Finally, you’ll explore medium-level data governance, including data provenance, privacy, and deletion request handling. By the end of this data science book, you'll have learned the fundamentals of computational mathematics and statistics, all while navigating the intricacies of modern ML and large pre-trained models like GPT and BERT.
Table of Contents (18 chapters)

Linear algebra

As we’ve already seen, a movie recommendation engine utilizes several mathematical concepts to provide accurate and personalized recommendations to users. However, in a scenario where a vast collection of 10,000 movies is available for recommendation, computational efficiency becomes a crucial factor. Linear algebra, an area of mathematics that deals with matrices and vectors, provides the necessary tools to perform these calculations efficiently.

Linear algebra focuses on analyzing and manipulating matrices and vectors to extract useful information and apply it in practical situations. As we proceed, it is important to have a solid understanding of the basic principles of linear algebra. Therefore, we will be reviewing several key rules of linear algebra before delving further into the topic.

Matrix multiplication

Like numbers, we can multiply matrices together. Multiplying matrices is, in essence, a mass-produced way of taking several dot products at...