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

Introduction to dependency parsing

If you are already familiar with spaCy, you must have come across the spaCy dependency parser. Though many developers see dependency parser on the spaCy documentation, they're shy about using it or don't know how to use this feature to the fullest. In this part, you'll explore a systematic way of representing a sentence syntactically. Let's start with what dependency parsing actually is.

What is dependency parsing?

In the previous section, we focused on POS tags—syntactic categories of words. Though POS tags provide information about neighbor words' tags as well, they do not give away any relations between words that are not neighbors in the given sentence.

In this section, we'll focus on dependency parsing—a more structured way of exploring the sentence syntax. As the name suggests, dependency parsing is related to analyzing sentence structures via dependencies between the tokens. A dependency...