Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Advanced Natural Language Processing with TensorFlow 2
Advanced Natural Language Processing with TensorFlow 2

Advanced Natural Language Processing with TensorFlow 2: Build effective real-world NLP applications using NER, RNNs, seq2seq models, Transformers, and more

eBook
€17.99 €26.99
Paperback
€32.99
Subscription
Free Trial
Renews at €18.99p/m

What do you get with eBook?

Product feature icon Instant access to your Digital eBook purchase
Product feature icon Download this book in EPUB and PDF formats
Product feature icon Access this title in our online reader with advanced features
Product feature icon DRM FREE - Read whenever, wherever and however you want
Product feature icon AI Assistant (beta) to help accelerate your learning
Table of content icon View table of contents Preview book icon Preview Book

Advanced Natural Language Processing with TensorFlow 2

Understanding Sentiment in Natural Language with BiLSTMs

Natural Language Understanding (NLU) is a significant subfield of Natural Language Processing (NLP). In the last decade, there has been a resurgence of interest in this field with the dramatic success of chatbots such as Amazon's Alexa and Apple's Siri. This chapter will introduce the broad area of NLU and its main applications.

Specific model architectures called Recurrent Neural Networks (RNNs), with special units called Long Short-Term Memory (LSTM) units, have been developed to make the task of understanding natural language easier. LSTMs in NLP are analogous to convolution blocks in computer vision. We will take two examples to build models that can understand natural language. Our first example is understanding the sentiment of movie reviews. This will be the focus of this chapter. The other example is one of the fundamental building blocks of NLU, Named Entity Recognition (NER). That will be the...

Natural language understanding

NLU enables the processing of unstructured text and extracts meaning and critical pieces of information that are actionable. Enabling a computer to understand sentences of text is a very hard challenge. One aspect of NLU is understanding the meaning of sentences. Sentiment analysis of a sentence becomes possible after understanding the sentence. Another useful application is the classification of sentences to a topic. This topic classification can also help in the disambiguation of entities. Consider the following sentence: "A CNN helps improve the accuracy of object recognition." Without understanding that this sentence is about machine learning, an incorrect inference may be made about the entity CNN. It may be interpreted as the news organization as opposed to a deep learning architecture used in computer vision. An example of a sentiment analysis model is built using a specific RNN architecture called BiLSTMs later in this chapter.

...

Bi-directional LSTMs – BiLSTMs

LSTMs are one of the styles of recurrent neural networks, or RNNs. RNNs are built to handle sequences and learn the structure of them. An RNN does that by using the output generated after processing the previous item in the sequence along with the current item to generate the next output.

Mathematically, this can be expressed like so:

This equation says that to compute the output at time t, the output at t-1 is used as an input along with the input data xt at the same time step. Along with this, a set of parameters or learned weights, represented by , are also used in computing the output. The objective of training an RNN is to learn these weights This particular formulation of an RNN is unique. In previous examples, we have not used the output of a batch to determine the output of a future batch. While we focus on applications of RNNs on language where a sentence is modeled as a sequence of words appearing one after the other, RNNs...

Summary

This is a foundational chapter in our journey through advanced NLP problems. Many advanced models use building blocks such as BiRNNs. First, we used the TensorFlow Datasets package to load data. Our work of building a vocabulary, tokenizer, and encoder for vectorization was simplified through the use of this library. After understanding LSTMs and BiLSTMs, we built models to do sentiment analysis. Our work showed promise but was far away from the state-of-the-art results, which will be addressed in future chapters. However, we are now armed with the fundamental building blocks that will enable us to tackle more challenging problems.

Armed with this knowledge of LSTMs, we are ready to build our first NER model using BiLSTMs in the next chapter. Once this model is built, we will try to improve it using CRFs and Viterbi decoding.

Left arrow icon Right arrow icon

Key benefits

  • Apply deep learning algorithms and techniques such as BiLSTMS, CRFs, BPE and more using TensorFlow 2
  • Explore applications like text generation, summarization, weakly supervised labelling and more
  • Read cutting edge material with seminal papers provided in the GitHub repository with full working code

Description

Recently, there have been tremendous advances in NLP, and we are now moving from research labs into practical applications. This book comes with a perfect blend of both the theoretical and practical aspects of trending and complex NLP techniques. The book is focused on innovative applications in the field of NLP, language generation, and dialogue systems. It helps you apply the concepts of pre-processing text using techniques such as tokenization, parts of speech tagging, and lemmatization using popular libraries such as Stanford NLP and SpaCy. You will build Named Entity Recognition (NER) from scratch using Conditional Random Fields and Viterbi Decoding on top of RNNs. The book covers key emerging areas such as generating text for use in sentence completion and text summarization, bridging images and text by generating captions for images, and managing dialogue aspects of chatbots. You will learn how to apply transfer learning and fine-tuning using TensorFlow 2. Further, it covers practical techniques that can simplify the labelling of textual data. The book also has a working code that is adaptable to your use cases for each tech piece. By the end of the book, you will have an advanced knowledge of the tools, techniques and deep learning architecture used to solve complex NLP problems.

Who is this book for?

This is not an introductory book and assumes the reader is familiar with basics of NLP and has fundamental Python skills, as well as basic knowledge of machine learning and undergraduate-level calculus and linear algebra. The readers who can benefit the most from this book include intermediate ML developers who are familiar with the basics of supervised learning and deep learning techniques and professionals who already use TensorFlow/Python for purposes such as data science, ML, research, analysis, etc.

What you will learn

  • Grasp important pre-steps in building NLP applications like POS tagging
  • Use transfer and weakly supervised learning using libraries like Snorkel
  • Do sentiment analysis using BERT
  • Apply encoder-decoder NN architectures and beam search for summarizing texts
  • Use Transformer models with attention to bring images and text together
  • Build apps that generate captions and answer questions about images using custom Transformers
  • Use advanced TensorFlow techniques like learning rate annealing, custom layers, and custom loss functions to build the latest DeepNLP models

Product Details

Country selected
Publication date, Length, Edition, Language, ISBN-13
Publication date : Feb 04, 2021
Length: 380 pages
Edition : 1st
Language : English
ISBN-13 : 9781800201057
Category :

What do you get with eBook?

Product feature icon Instant access to your Digital eBook purchase
Product feature icon Download this book in EPUB and PDF formats
Product feature icon Access this title in our online reader with advanced features
Product feature icon DRM FREE - Read whenever, wherever and however you want
Product feature icon AI Assistant (beta) to help accelerate your learning

Product Details

Publication date : Feb 04, 2021
Length: 380 pages
Edition : 1st
Language : English
ISBN-13 : 9781800201057
Category :

Packt Subscriptions

See our plans and pricing
Modal Close icon
€18.99 billed monthly
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Simple pricing, no contract
€189.99 billed annually
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just €5 each
Feature tick icon Exclusive print discounts
€264.99 billed in 18 months
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just €5 each
Feature tick icon Exclusive print discounts

Frequently bought together


Stars icon
Total 142.97
Advanced Natural Language Processing with TensorFlow 2
€32.99
Python Natural Language Processing Cookbook
€41.99
Transformers for Natural Language Processing
€67.99
Total 142.97 Stars icon

Table of Contents

12 Chapters
Essentials of NLP Chevron down icon Chevron up icon
Understanding Sentiment in Natural Language with BiLSTMs Chevron down icon Chevron up icon
Named Entity Recognition (NER) with BiLSTMs, CRFs, and Viterbi Decoding Chevron down icon Chevron up icon
Transfer Learning with BERT Chevron down icon Chevron up icon
Generating Text with RNNs and GPT-2 Chevron down icon Chevron up icon
Text Summarization with Seq2seq Attention and Transformer Networks Chevron down icon Chevron up icon
Multi-Modal Networks and Image Captioning with ResNets and Transformer Networks Chevron down icon Chevron up icon
Weakly Supervised Learning for Classification with Snorkel Chevron down icon Chevron up icon
Building Conversational AI Applications with Deep Learning Chevron down icon Chevron up icon
Installation and Setup Instructions for Code Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon

Customer reviews

Top Reviews
Rating distribution
Full star icon Full star icon Full star icon Full star icon Half star icon 4.8
(35 Ratings)
5 star 88.6%
4 star 5.7%
3 star 2.9%
2 star 2.9%
1 star 0%
Filter icon Filter
Top Reviews

Filter reviews by




Noopur Sethi Jun 06, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Easy read - very helpful
Amazon Verified review Amazon
NJ Jun 05, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This is a great book for everyone to read who want to pursue NLP using TensorFlow.
Amazon Verified review Amazon
Tushar Kant Apr 10, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I had a chance to read this book on NLP (Natural Language Processing) by Ashish Bansal. The most unique feature of this book is that it is a rare combination of deep theoretical insights (supported by both seminal and state-of-art papers in the domain) and practical implementation with code that may be easily downloaded from Github. The book may be used as primary source of knowledge as well as reference by people across industry & academia.I have personally learnt a lot from the chapters related to semi-supervised learning using GPT, Transformers etc. as well as Multi-Modal Networks. The beauty of the book lies in it's simplicity & eloquence in explaining very complex concepts in a simple & easy to understand manner. Our best wishes to Ashish for the success of this book and hope that the book becomes a de facto reference from industry professionals and teaching guide for people in academics.
Amazon Verified review Amazon
Sanjib Basu Feb 20, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
If you are looking for an advanced book on NLP, full of examples and codes, please try this book. Starting from basic concepts of algorithms, deep learning, to using the latest libraries, advanced techniques, the book proves to be very useful. The descriptions are to the point, carrying little fuss on personal opinions, decorative illustrations, and literal analogies. In other words, the book is concise to compress the vast field of NLP knowledge.
Amazon Verified review Amazon
Manu Goyal Jun 02, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
A practical book for techniques in NLP.The best part is the sample code included with the book that makes it easy to test.A word of caution - not very suitable for beginners.Overall 5*!
Amazon Verified review Amazon
Get free access to Packt library with over 7500+ books and video courses for 7 days!
Start Free Trial

FAQs

How do I buy and download an eBook? Chevron down icon Chevron up icon

Where there is an eBook version of a title available, you can buy it from the book details for that title. Add either the standalone eBook or the eBook and print book bundle to your shopping cart. Your eBook will show in your cart as a product on its own. After completing checkout and payment in the normal way, you will receive your receipt on the screen containing a link to a personalised PDF download file. This link will remain active for 30 days. You can download backup copies of the file by logging in to your account at any time.

If you already have Adobe reader installed, then clicking on the link will download and open the PDF file directly. If you don't, then save the PDF file on your machine and download the Reader to view it.

Please Note: Packt eBooks are non-returnable and non-refundable.

Packt eBook and Licensing When you buy an eBook from Packt Publishing, completing your purchase means you accept the terms of our licence agreement. Please read the full text of the agreement. In it we have tried to balance the need for the ebook to be usable for you the reader with our needs to protect the rights of us as Publishers and of our authors. In summary, the agreement says:

  • You may make copies of your eBook for your own use onto any machine
  • You may not pass copies of the eBook on to anyone else
How can I make a purchase on your website? Chevron down icon Chevron up icon

If you want to purchase a video course, eBook or Bundle (Print+eBook) please follow below steps:

  1. Register on our website using your email address and the password.
  2. Search for the title by name or ISBN using the search option.
  3. Select the title you want to purchase.
  4. Choose the format you wish to purchase the title in; if you order the Print Book, you get a free eBook copy of the same title. 
  5. Proceed with the checkout process (payment to be made using Credit Card, Debit Cart, or PayPal)
Where can I access support around an eBook? Chevron down icon Chevron up icon
  • If you experience a problem with using or installing Adobe Reader, the contact Adobe directly.
  • To view the errata for the book, see www.packtpub.com/support and view the pages for the title you have.
  • To view your account details or to download a new copy of the book go to www.packtpub.com/account
  • To contact us directly if a problem is not resolved, use www.packtpub.com/contact-us
What eBook formats do Packt support? Chevron down icon Chevron up icon

Our eBooks are currently available in a variety of formats such as PDF and ePubs. In the future, this may well change with trends and development in technology, but please note that our PDFs are not Adobe eBook Reader format, which has greater restrictions on security.

You will need to use Adobe Reader v9 or later in order to read Packt's PDF eBooks.

What are the benefits of eBooks? Chevron down icon Chevron up icon
  • You can get the information you need immediately
  • You can easily take them with you on a laptop
  • You can download them an unlimited number of times
  • You can print them out
  • They are copy-paste enabled
  • They are searchable
  • There is no password protection
  • They are lower price than print
  • They save resources and space
What is an eBook? Chevron down icon Chevron up icon

Packt eBooks are a complete electronic version of the print edition, available in PDF and ePub formats. Every piece of content down to the page numbering is the same. Because we save the costs of printing and shipping the book to you, we are able to offer eBooks at a lower cost than print editions.

When you have purchased an eBook, simply login to your account and click on the link in Your Download Area. We recommend you saving the file to your hard drive before opening it.

For optimal viewing of our eBooks, we recommend you download and install the free Adobe Reader version 9.