Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Java Deep Learning Cookbook

You're reading from   Java Deep Learning Cookbook Train neural networks for classification, NLP, and reinforcement learning using Deeplearning4j

Arrow left icon
Product type Paperback
Published in Nov 2019
Publisher Packt
ISBN-13 9781788995207
Length 304 pages
Edition 1st Edition
Languages
Arrow right icon
Author (1):
Arrow left icon
Rahul Raj Rahul Raj
Author Profile Icon Rahul Raj
Rahul Raj
Arrow right icon
View More author details
Toc

Table of Contents (14) Chapters Close

Preface 1. Introduction to Deep Learning in Java 2. Data Extraction, Transformation, and Loading FREE CHAPTER 3. Building Deep Neural Networks for Binary Classification 4. Building Convolutional Neural Networks 5. Implementing Natural Language Processing 6. Constructing an LSTM Network for Time Series 7. Constructing an LSTM Neural Network for Sequence Classification 8. Performing Anomaly Detection on Unsupervised Data 9. Using RL4J for Reinforcement Learning 10. Developing Applications in a Distributed Environment 11. Applying Transfer Learning to Network Models 12. Benchmarking and Neural Network Optimization 13. Other Books You May Enjoy

Removing anomalies from the data

For supervised datasets, manual inspection works fine for datasets with fewer features. As the feature count goes high, manual inspection becomes impractical. We need to perform feature selection techniques, such as chi-square test, random forest, and so on, to deal with the volume of features. We can also use an autoencoder to narrow down the relevant features. Remember that each feature should have a fair contribution toward the prediction outcomes. So, we need to remove noise features from the raw dataset and keep everything else as is, including any uncertain features. In this recipe, we will walk through the steps to identify anomalies in the data.

How to do it...

  1. Leave out all the noise...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €18.99/month. Cancel anytime