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)

Introduction to Transfer Learning and Pre-Trained Models

Just as one wouldn’t try to reinvent the wheel, in the world of data science and machine learning (ML), it’s often more efficient to build upon existing knowledge. This is where the concepts of transfer learning (TL) and pre-trained models come into play, two incredibly important tools in a data scientist’s repertoire.

TL is almost like a shortcut in ML. Instead of taking a model architecture that has never seen data before, such as a Logistic Regression model or a Random Forest model, imagine being able to take a model trained on one task and then repurposing it for a different, yet related task. That’s TL in a nutshell – leveraging existing knowledge to learn new things more efficiently. It’s a concept that echoes throughout many facets of life and is a key technique in data science.

Pre-trained models are off-the-shelf components, ready to be used right out of the box. They&...