Sudharsan Ravichandiran 
Getting Started with Google BERT [EPUB ebook] 
Build and train state-of-the-art natural language processing models using BERT

BERT (bidirectional encoder representations from transformer) has revolutionized the world of natural language processing (NLP) with promising results. This book is an introductory guide that will help you get to grips with Google’s BERT architecture. With a detailed explanation of the transformer architecture, this book will help you understand how the transformer’s encoder and decoder work.
You’ll explore the BERT architecture by learning how the BERT model is pre-trained and how to use pre-trained BERT for downstream tasks by fine-tuning it for NLP tasks such as sentiment analysis and text summarization with the Hugging Face transformers library. As you advance, you’ll learn about different variants of BERT such as ALBERT, Ro BERTa, and ELECTRA, and look at Span BERT, which is used for NLP tasks like question answering. You’ll also cover simpler and faster BERT variants based on knowledge distillation such as Distil BERT and Tiny BERT. The book takes you through MBERT, XLM, and XLM-R in detail and then introduces you to sentence-BERT, which is used for obtaining sentence representation. Finally, you’ll discover domain-specific BERT models such as Bio BERT and Clinical BERT, and discover an interesting variant called Video BERT.
By the end of this BERT book, you’ll be well-versed with using BERT and its variants for performing practical NLP tasks.