Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Deep Learning for Natural Language Processing
  • Table Of Contents Toc
  • Feedback & Rating feedback
Deep Learning for Natural Language Processing

Deep Learning for Natural Language Processing

By : Karthiek Reddy Bokka, Shubhangi Hora , Tanuj Jain, Monicah Wambugu
1.5 (2)
close
close
Deep Learning for Natural Language Processing

Deep Learning for Natural Language Processing

1.5 (2)
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)
close
close

Output Gate and Current Activation

Note that all we have done is update the cell state until now. We need to generate the activation for the current state as well; that is, (h[t]). This is done using an output gate that is calculated as given:

Figure 7.20: Expression for output gate.

The input at timestep t is multiplied by a new set of weights, W_o, with the dimensions (n_h, n_x). The activation from the previous timestep (h[t-1]) is multiplied by another new set of weights, U_o, with the dimensions (n_h, n_h). Note that the multiplications are matrix multiplications. These two terms are then added and passed through a sigmoid function to squish the output, o[t], within a range of [0,1]. The output has the same number of dimensions as there are in cell state vector h (n_h, 1).

The output gate is responsible for regulating the amount by which the current cell state is allowed to affect the activation value for the timestep. In our example sentence, it is worth propagating the...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech

Create a Note

Modal Close icon
You need to login to use this feature.
notes
bookmark search playlist font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Delete Note

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Edit Note

Modal Close icon
Write a note (max 255 characters)
Cancel
Update Note

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY