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Python Data Analysis

You're reading from   Python Data Analysis Perform data collection, data processing, wrangling, visualization, and model building using Python

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Product type Paperback
Published in Feb 2021
Publisher Packt
ISBN-13 9781789955248
Length 478 pages
Edition 3rd Edition
Languages
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Authors (2):
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 Navlani Navlani
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Navlani
Ivan Idris Ivan Idris
Author Profile Icon Ivan Idris
Ivan Idris
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Toc

Table of Contents (20) Chapters Close

Preface 1. Section 1: Foundation for Data Analysis
2. Getting Started with Python Libraries FREE CHAPTER 3. NumPy and pandas 4. Statistics 5. Linear Algebra 6. Section 2: Exploratory Data Analysis and Data Cleaning
7. Data Visualization 8. Retrieving, Processing, and Storing Data 9. Cleaning Messy Data 10. Signal Processing and Time Series 11. Section 3: Deep Dive into Machine Learning
12. Supervised Learning - Regression Analysis 13. Supervised Learning - Classification Techniques 14. Unsupervised Learning - PCA and Clustering 15. Section 4: NLP, Image Analytics, and Parallel Computing
16. Analyzing Textual Data 17. Analyzing Image Data 18. Parallel Computing Using Dask 19. Other Books You May Enjoy

Terminology

We will now explore some of the terminology that goes into SVM classification:

  • Hyperplane: Hyperplane is a decision boundary used to distinguish between two classes. Hyperplane dimensionality is decided by the number of features. It is also known as a decision plane.
  • Support vectors: Support vectors are the closest points to the hyperplane and help in the orientation of the hyperplane by maximizing the margin.
  • Margin: Margin is the maximum gap between the closest points. The larger the margin, the better the classification is considered. The margin can be calculated by the perpendicular distance from the support vector line.

The core objective of an SVM is to choose the hyperplane with the largest possible boundary between support vectors. The SVM finds the MMH in the following two stages:

  1. Create hyperplanes that separate the data points in the best possible manner.
  2. Select the hyperplane with maximum margin hyperplane:

The SVM algorithm is a faster and more...

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