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Machine Learning with scikit-learn Quick Start Guide

You're reading from   Machine Learning with scikit-learn Quick Start Guide Classification, regression, and clustering techniques in Python

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Product type Paperback
Published in Oct 2018
Publisher Packt
ISBN-13 9781789343700
Length 172 pages
Edition 1st Edition
Languages
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Author (1):
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Kevin Jolly Kevin Jolly
Author Profile Icon Kevin Jolly
Kevin Jolly
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Table of Contents (10) Chapters Close

Preface 1. Introducing Machine Learning with scikit-learn 2. Predicting Categories with K-Nearest Neighbors FREE CHAPTER 3. Predicting Categories with Logistic Regression 4. Predicting Categories with Naive Bayes and SVMs 5. Predicting Numeric Outcomes with Linear Regression 6. Classification and Regression with Trees 7. Clustering Data with Unsupervised Machine Learning 8. Performance Evaluation Methods 9. Other Books You May Enjoy

Going from unsupervised to supervised learning

The eventual goal of unsupervised learning is to take a dataset with no labels and assign labels to each row of the dataset, so that we can run a supervised learning algorithm through it. This allows us to create predictions that make use of the labels.

In this section, you will learn how to convert the labels generated by the unsupervised machine learning algorithm into a decision tree that makes use of those labels.

Creating a labeled dataset

The first step is to convert the labels generated by an unsupervised machine learning algorithm, such as the k-means algorithm, and append it to the dataset. We can do this by using the following code:

#Reading in the dataset

df = pd...
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