Book Image

Hands-On Natural Language Processing with PyTorch 1.x

By : Thomas Dop
Book Image

Hands-On Natural Language Processing with PyTorch 1.x

By: Thomas Dop

Overview of this book

In the internet age, where an increasing volume of text data is generated daily from social media and other platforms, being able to make sense of that data is a crucial skill. With this book, you’ll learn how to extract valuable insights from text by building deep learning models for natural language processing (NLP) tasks. Starting by understanding how to install PyTorch and using CUDA to accelerate the processing speed, you’ll explore how the NLP architecture works with the help of practical examples. This PyTorch NLP book will guide you through core concepts such as word embeddings, CBOW, and tokenization in PyTorch. You’ll then learn techniques for processing textual data and see how deep learning can be used for NLP tasks. The book demonstrates how to implement deep learning and neural network architectures to build models that will allow you to classify and translate text and perform sentiment analysis. Finally, you’ll learn how to build advanced NLP models, such as conversational chatbots. By the end of this book, you’ll not only have understood the different NLP problems that can be solved using deep learning with PyTorch, but also be able to build models to solve them.
Table of Contents (14 chapters)
1
Section 1: Essentials of PyTorch 1.x for NLP
7
Section 3: Real-World NLP Applications Using PyTorch 1.x

Tagging and chunking for parts of speech

So far, we have covered several approaches for representing words and sentences, including bag-of-words, embeddings, and n-grams. However, these representations fail to capture the structure of any given sentence. Within natural language, different words can have different functions within a sentence. Consider the following:

The big dog is sleeping on the bed

We can "tag" the various words of this text, depending on the function of each word in the sentence. So, the preceding sentence becomes as follows:

The -> big -> dog -> is -> sleeping -> on -> the -> bed

Determiner -> Adjective -> Noun -> Verb -> Verb -> Preposition -> Determiner-> Noun

These parts of speech include, but are not limited to, the following:

Figure 3.24 – Parts of speech

These different parts of speech can be used to better understand the structure of sentences. For example,...