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Hands-On Unsupervised Learning with Python

You're reading from Hands-On Unsupervised Learning with Python

Product type Book

Published in Feb 2019

Publisher Packt

ISBN-13 9781789348279

Pages 386 pages

Edition 1st Edition

Languages

Concepts

Machine Learning

Author (1):

Giuseppe Bonaccorso

Table of Contents (12) Chapters

Preface

1. Getting Started with Unsupervised Learning

2. Clustering Fundamentals

3. Advanced Clustering

4. Hierarchical Clustering in Action

5. Soft Clustering and Gaussian Mixture Models

6. Anomaly Detection

7. Dimensionality Reduction and Component Analysis

8. Unsupervised Neural Network Models

9. Generative Adversarial Networks and SOMs

10. Assessments

11. Other Books You May Enjoy

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Agglomerative clustering on the Water Treatment Plant dataset

Let's now consider a more detailed problem on a larger dataset (the instructions to download it are provided in the Technical requirements section at the beginning of the chapter) containing 527 samples with 38 chemical and physical variables describing the status of water treatment plants. As the same authors (Bejar, Cortes, and Poch) stated, the domain is poorly-structured and careful analysis is needed. At the same time, our goal is to find the optimal clustering with an agnostic approach; in other words, we won't consider the semantic labeling process (which needs a domain expert) but only the geometrical structure of the dataset and the relations discovered by the agglomerative algorithm.

Once downloaded, the CSV file (called water-treatment.data) can be loaded using pandas (of course, the term <DATA_PATH...

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Authors (1)

Giuseppe Bonaccorso

Giuseppe Bonaccorso is Head of Data Science in a large multinational company. He received his M.Sc.Eng. in Electronics in 2005 from University of Catania, Italy, and continued his studies at University of Rome Tor Vergata, and University of Essex, UK. His main interests include machine/deep learning, reinforcement learning, big data, and bio-inspired adaptive systems. He is author of several publications including Machine Learning Algorithms and Hands-On Unsupervised Learning with Python, published by Packt.

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