Book Image

Deep Learning for Natural Language Processing

By : Karthiek Reddy Bokka, Shubhangi Hora, Tanuj Jain, Monicah Wambugu
Book Image

Deep Learning for Natural Language Processing

By: Karthiek Reddy Bokka, Shubhangi Hora, Tanuj Jain, Monicah Wambugu

Overview of this book

Applying deep learning approaches to various NLP tasks can take your computational algorithms to a completely new level in terms of speed and accuracy. Deep Learning for Natural Language Processing starts by highlighting the basic building blocks of the natural language processing domain. The book goes on to introduce the problems that you can solve using state-of-the-art neural network models. After this, delving into the various neural network architectures and their specific areas of application will help you to understand how to select the best model to suit your needs. As you advance through this deep learning book, you’ll study convolutional, recurrent, and recursive neural networks, in addition to covering long short-term memory networks (LSTM). Understanding these networks will help you to implement their models using Keras. In later chapters, you will be able to develop a trigger word detection application using NLP techniques such as attention model and beam search. By the end of this book, you will not only have sound knowledge of natural language processing, but also be able to select the best text preprocessing and neural network models to solve a number of NLP issues.
Table of Contents (11 chapters)

Named Entity Recognition

This is one of the first steps in the process of information extraction. Information extraction is the task of a machine extracting structured information from unstructured or semi-structured text. This furthers the comprehension of natural language by machines.

After text preprocessing and POS tagging, our corpus becomes semi-structured and machine-readable. Thus, information extraction is performed after we've readied our corpus.

The following diagram is an example of named entity recognition:

Figure 2.12: Example for named entity recognition

Named Entities

Named entities are real-world objects that can be classified into categories, such as people, places, and things. Basically, they are words that can be denoted by a proper name. Named entities can also include quantities, organizations, monetary values, and many more things.

Some examples of named entities and the categories they fall under are as follows:

  • Donald Trump, person
  • Italy, location...