Book Image

Machine Learning in Java - Second Edition

By : AshishSingh Bhatia, Bostjan Kaluza
Book Image

Machine Learning in Java - Second Edition

By: AshishSingh Bhatia, Bostjan Kaluza

Overview of this book

As the amount of data in the world continues to grow at an almost incomprehensible rate, being able to understand and process data is becoming a key differentiator for competitive organizations. Machine learning applications are everywhere, from self-driving cars, spam detection, document search, and trading strategies, to speech recognition. This makes machine learning well-suited to the present-day era of big data and Data Science. The main challenge is how to transform data into actionable knowledge. Machine Learning in Java will provide you with the techniques and tools you need. You will start by learning how to apply machine learning methods to a variety of common tasks including classification, prediction, forecasting, market basket analysis, and clustering. The code in this book works for JDK 8 and above, the code is tested on JDK 11. Moving on, you will discover how to detect anomalies and fraud, and ways to perform activity recognition, image recognition, and text analysis. By the end of the book, you will have explored related web resources and technologies that will help you take your learning to the next level. By applying the most effective machine learning methods to real-world problems, you will gain hands-on experience that will transform the way you think about data.
Table of Contents (13 chapters)

Regression

We will explore basic regression algorithms through an analysis of an energy efficiency dataset (Tsanas and Xifara, 2012). We will investigate the heating and cooling load requirements of the buildings based on their construction characteristics, such as surface, wall, and roof area; height; glazing area; and compactness. The researchers have used a simulator to design 12 different house configurations, while varying 18 building characteristics. In total, 768 different buildings were simulated.

Our first goal is to systematically analyze the impact that each building characteristic has on the target variable, that is, the heating or cooling load. The second goal is to compare the performance of a classical linear regression model against other methods, such as SVM regression, random forests, and neural networks. For this task, we will use the Weka library.

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