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Machine Learning Quick Reference

You're reading from   Machine Learning Quick Reference Quick and essential machine learning hacks for training smart data models

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Product type Paperback
Published in Jan 2019
Publisher Packt
ISBN-13 9781788830577
Length 294 pages
Edition 1st Edition
Languages
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Author (1):
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Rahul Kumar Rahul Kumar
Author Profile Icon Rahul Kumar
Rahul Kumar
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Toc

Table of Contents (13) Chapters Close

Preface 1. Quantifying Learning Algorithms FREE CHAPTER 2. Evaluating Kernel Learning 3. Performance in Ensemble Learning 4. Training Neural Networks 5. Time Series Analysis 6. Natural Language Processing 7. Temporal and Sequential Pattern Discovery 8. Probabilistic Graphical Models 9. Selected Topics in Deep Learning 10. Causal Inference 11. Advanced Methods 12. Other Books You May Enjoy

SVM

Now we are ready to understand SVMs. SVM is an algorithm that enables us to make use of it for both classification and regression. Given a set of examples, it builds a model to assign a group of observations into one category and others into a second category. It is a non-probabilistic linear classifier. Training data being linearly separable is the key here. All the observations or training data are a representation of vectors that are mapped into a space and SVM tries to classify them by using a margin that has to be as wide as possible:

Let's say there are two classes A and B as in the preceding screenshot.

And from the preceding section, we have learned the following:

g(x) = w. x + b

Where:

  • w: Weight vector that decides the orientation of the hyperplane
  • b: Bias term that decides the position of the hyperplane in n-dimensional space by biasing it

The...

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