Book Image

Mastering spaCy

By : Duygu Altınok
Book Image

Mastering spaCy

By: Duygu Altınok

Overview of this book

spaCy is an industrial-grade, efficient NLP Python library. It offers various pre-trained models and ready-to-use features. Mastering spaCy provides you with end-to-end coverage of spaCy's features and real-world applications. You'll begin by installing spaCy and downloading models, before progressing to spaCy's features and prototyping real-world NLP apps. Next, you'll get familiar with visualizing with spaCy's popular visualizer displaCy. The book also equips you with practical illustrations for pattern matching and helps you advance into the world of semantics with word vectors. Statistical information extraction methods are also explained in detail. Later, you'll cover an interactive business case study that shows you how to combine all spaCy features for creating a real-world NLP pipeline. You'll implement ML models such as sentiment analysis, intent recognition, and context resolution. The book further focuses on classification with popular frameworks such as TensorFlow's Keras API together with spaCy. You'll cover popular topics, including intent classification and sentiment analysis, and use them on popular datasets and interpret the classification results. By the end of this book, you'll be able to confidently use spaCy, including its linguistic features, word vectors, and classifiers, to create your own NLP apps.
Table of Contents (15 chapters)
1
Section 1: Getting Started with spaCy
4
Section 2: spaCy Features
9
Section 3: Machine Learning with spaCy

Chapter 8: Text Classification with spaCy

This chapter is devoted to a very basic and popular task of NLP: text classification. You will first learn how to train spaCy's text classifier component, TextCategorizer. For this, you will learn how to prepare data and feed the data to the classifier; then we'll proceed to train the classifier. You'll also practice your new TextCategorizer skills on a popular dataset for sentiment analysis.

Next, you will also do text classification with the popular framework TensorFlow's Keras API together with spaCy. You will learn the basics of neural networks, sequential data modeling with LSTMs, and how to prepare text for machine learning tasks with Keras's text preprocessing module. You will also learn how to design a neural network with tf.keras.

Following that, we will then make an end-to-end text classification experiment, from data preparation to preprocessing text with Keras Tokenizer, neural network designing,...