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Practical Data Analysis

You're reading from   Practical Data Analysis For small businesses, analyzing the information contained in their data using open source technology could be game-changing. All you need is some basic programming and mathematical skills to do just that.

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Product type Paperback
Published in Oct 2013
Publisher Packt
ISBN-13 9781783280995
Length 360 pages
Edition 1st Edition
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Author (1):
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Hector Cuesta Hector Cuesta
Author Profile Icon Hector Cuesta
Hector Cuesta
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Table of Contents (24) Chapters Close

Practical Data Analysis
Credits
Foreword
About the Author
Acknowledgments
About the Reviewers
www.PacktPub.com
Preface
1. Getting Started FREE CHAPTER 2. Working with Data 3. Data Visualization 4. Text Classification 5. Similarity-based Image Retrieval 6. Simulation of Stock Prices 7. Predicting Gold Prices 8. Working with Support Vector Machines 9. Modeling Infectious Disease with Cellular Automata 10. Working with Social Graphs 11. Sentiment Analysis of Twitter Data 12. Data Processing and Aggregation with MongoDB 13. Working with MapReduce 14. Online Data Analysis with IPython and Wakari Setting Up the Infrastructure Index

Chapter 8. Working with Support Vector Machines

The support vector machine (SVM) is a powerful classification technique. In this chapter, we will provide the reader with an easy way to get acceptable results using SVM. We will perform dimensionality reduction of the dataset and we will produce a model for classification.

The theoretical foundation of SVM lies in the work of Vladimir Vapnik and the theory of statistical learning developed in the 1970s. The SVMs are highly used in pattern recognition of Time Series, Bioinformatics, Natural Language Processing, and Computer Vision.

In this chapter, we will use the mlpy implementation of LIBSVM, which is a widely used library for SVM with several interfaces and extensions for languages such as Java, Python, MATLAB, R, CUDA, C#, and Weka. For more information about LIBSVM visit the following link:

http://www.csie.ntu.edu.tw/~cjlin/libsvm/

In this chapter we will cover:

  • Understanding the multivariate dataset

  • Dimensionality Reduction

    • Linear Discriminant...

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