Book Image

Transformers for Natural Language Processing - Second Edition

By : Denis Rothman
5 (1)
Book Image

Transformers for Natural Language Processing - Second Edition

5 (1)
By: Denis Rothman

Overview of this book

Transformers are...well...transforming the world of AI. There are many platforms and models out there, but which ones best suit your needs? Transformers for Natural Language Processing, 2nd Edition, guides you through the world of transformers, highlighting the strengths of different models and platforms, while teaching you the problem-solving skills you need to tackle model weaknesses. You'll use Hugging Face to pretrain a RoBERTa model from scratch, from building the dataset to defining the data collator to training the model. If you're looking to fine-tune a pretrained model, including GPT-3, then Transformers for Natural Language Processing, 2nd Edition, shows you how with step-by-step guides. The book investigates machine translations, speech-to-text, text-to-speech, question-answering, and many more NLP tasks. It provides techniques to solve hard language problems and may even help with fake news anxiety (read chapter 13 for more details). You'll see how cutting-edge platforms, such as OpenAI, have taken transformers beyond language into computer vision tasks and code creation using DALL-E 2, ChatGPT, and GPT-4. By the end of this book, you'll know how transformers work and how to implement them and resolve issues like an AI detective.
Table of Contents (25 chapters)
18
Other Books You May Enjoy
19
Index
Appendix I — Terminology of Transformer Models

Training a GPT-2 language model

In this section, we will train a GPT-2 model on a custom dataset that we will encode. We will then interact with our customized model. We will be using the same kant.txt dataset as in Chapter 4, Pretraining a RoBERTa Model from Scratch.

We will open the notebook and run it cell by cell.

Step 1: Prerequisites

The files referred to in this section are available in the AppendixIV directory of this book’s GitHub repository:

  • Activate the GPU in the Google Colab’s notebook runtime menu if you are running it on Google Colab, as explained in Step 1: Activating the GPU in Appendix III, Generic Text Completion with GPT-2.
  • Upload the following Python files to Google Colaboratory with the built-in file manager: train.py, load_dataset.py, encode.py, accumulate.py, memory_saving_gradients.py.
  • These files originally come from N Shepperd’s GitHub repository: https://github.com/nshepperd/gpt-2. However, you...