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Java Deep Learning Cookbook

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

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Product type Paperback
Published in Nov 2019
Publisher Packt
ISBN-13 9781788995207
Length 304 pages
Edition 1st Edition
Languages
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Author (1):
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Rahul Raj Rahul Raj
Author Profile Icon Rahul Raj
Rahul Raj
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Toc

Table of Contents (14) Chapters Close

Preface 1. Introduction to Deep Learning in Java FREE CHAPTER 2. Data Extraction, Transformation, and Loading 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...
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