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The Data Science Workshop

You're reading from   The Data Science Workshop A New, Interactive Approach to Learning Data Science

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Product type Paperback
Published in Jan 2020
Publisher
ISBN-13 9781838981266
Length 818 pages
Edition 1st Edition
Languages
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Authors (5):
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Thomas Joseph Thomas Joseph
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Thomas Joseph
Andrew Worsley Andrew Worsley
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Andrew Worsley
Robert Thas John Robert Thas John
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Robert Thas John
Anthony So Anthony So
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Anthony So
Dr. Samuel Asare Dr. Samuel Asare
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Dr. Samuel Asare
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Table of Contents (18) Chapters Close

Preface 1. Introduction to Data Science in Python 2. Regression FREE CHAPTER 3. Binary Classification 4. Multiclass Classification with RandomForest 5. Performing Your First Cluster Analysis 6. How to Assess Performance 7. The Generalization of Machine Learning Models 8. Hyperparameter Tuning 9. Interpreting a Machine Learning Model 10. Analyzing a Dataset 11. Data Preparation 12. Feature Engineering 13. Imbalanced Datasets 14. Dimensionality Reduction 15. Ensemble Learning 16. Machine Learning Pipelines 17. Automated Feature Engineering

Area Under the ROC Curve

The Area Under the Receiver Operating Characteristic Curve (ROC AUC) is a measure of the likelihood that the model will rank a randomly chosen positive example higher than a randomly chosen negative example. Another way of putting it is to say that the higher this measure is, the better the model is at predicting a negative class as negative, and a positive class as positive. The value ranges from 0 to 1. If the AUC is 0.6, it means that the model has a 60% probability of correctly distinguishing a negative class from a positive class based on the inputs. This measure is used to compare models.

Exercise 6.13: Computing the ROC AUC for the Caesarian Dataset

The goal of this exercise is to compute the ROC AUC for the binary classification model that you trained in Exercise 6.12.

The following steps will help you accomplish the task:

  1. Open a Colab notebook to the code for Exercise 6.12 and continue writing your code.
  2. Predict...
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