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Python Deep Learning

Python Deep Learning

By : Zocca, Spacagna, Daniel Slater, Roelants
4.1 (10)
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Python Deep Learning

Python Deep Learning

4.1 (10)
By: Zocca, Spacagna, Daniel Slater, Roelants

Overview of this book

With an increasing interest in AI around the world, deep learning has attracted a great deal of public attention. Every day, deep learning algorithms are used broadly across different industries. The book will give you all the practical information available on the subject, including the best practices, using real-world use cases. You will learn to recognize and extract information to increase predictive accuracy and optimize results. Starting with a quick recap of important machine learning concepts, the book will delve straight into deep learning principles using Sci-kit learn. Moving ahead, you will learn to use the latest open source libraries such as Theano, Keras, Google's TensorFlow, and H20. Use this guide to uncover the difficulties of pattern recognition, scaling data with greater accuracy and discussing deep learning algorithms and techniques. Whether you want to dive deeper into Deep Learning, or want to investigate how to get more out of this powerful technology, you’ll find everything inside.
Table of Contents (12 chapters)
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11
Index

Anomaly detection using deep auto-encoders


The proposed approach using deep learning is semi-supervised and it is broadly explained in the following three steps:

  1. Identify a set of data that represents the normal distribution. In this context, the word "normal" represents a set of points that we are confident to majorly represent non-anomalous entities and not to be confused with the Gaussian normal distribution.

    The identification is generally historical, where we know that no anomalies were officially recognized. This is why this approach is not purely unsupervised. It relies on the assumption that the majority of observations are anomaly-free. We can use external information (even labels if available) to achieve a higher quality of the selected subset.

  2. Learn what "normal" means from this training dataset. The trained model will provide a sort of metric in its mathematical definition; that is, a function mapping every point to a real number representing the distance from another point representing...

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