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Machine Learning Solutions

You're reading from   Machine Learning Solutions Expert techniques to tackle complex machine learning problems using Python

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Product type Paperback
Published in Apr 2018
Publisher Packt
ISBN-13 9781788390040
Length 566 pages
Edition 1st Edition
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Author (1):
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Jalaj Thanaki Jalaj Thanaki
Author Profile Icon Jalaj Thanaki
Jalaj Thanaki
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Table of Contents (19) Chapters Close

Machine Learning Solutions
Foreword
Contributors
Preface
1. Credit Risk Modeling 2. Stock Market Price Prediction FREE CHAPTER 3. Customer Analytics 4. Recommendation Systems for E-Commerce 5. Sentiment Analysis 6. Job Recommendation Engine 7. Text Summarization 8. Developing Chatbots 9. Building a Real-Time Object Recognition App 10. Face Recognition and Face Emotion Recognition 11. Building Gaming Bot List of Cheat Sheets Strategy for Wining Hackathons Index

The best approach


The classifier model that we will be generating in this approach should give us the best possible accuracy. We have already discussed this approach. If you are new to ensemble ML models, then let me give you a basic intuitive idea behind it. In layman's terms, ensemble ML models basically use a combination of various ML algorithms. What is the benefit of combining various ML models together? Well, we know there is no single classifier that can perfectly classify all the samples, so if we combine more than one classifier, then we can get more accuracy because the problem with one classifier can be overcome by another classifier. Due to this reason, we will use a voting classifier that is a type of ensemble classifier.

Implementing the best approach

As you know, we use grid search and voting classifier APIs to implement the best approach. As discussed, first, we will use grid search to obtain the best possible hyperparameters and then use the voting classifier API. The step...

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