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Data Science  with Python

You're reading from   Data Science with Python Combine Python with machine learning principles to discover hidden patterns in raw data

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Product type Paperback
Published in Jul 2019
Publisher Packt
ISBN-13 9781838552862
Length 426 pages
Edition 1st Edition
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Authors (3):
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Rohan Chopra Rohan Chopra
Author Profile Icon Rohan Chopra
Rohan Chopra
Mohamed Noordeen Alaudeen Mohamed Noordeen Alaudeen
Author Profile Icon Mohamed Noordeen Alaudeen
Mohamed Noordeen Alaudeen
Aaron England Aaron England
Author Profile Icon Aaron England
Aaron England
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Toc

Table of Contents (10) Chapters Close

About the Book 1. Introduction to Data Science and Data Pre-Processing FREE CHAPTER 2. Data Visualization 3. Introduction to Machine Learning via Scikit-Learn 4. Dimensionality Reduction and Unsupervised Learning 5. Mastering Structured Data 6. Decoding Images 7. Processing Human Language 8. Tips and Tricks of the Trade 1. Appendix

Transfer Learning

Training a complex neural network is hard and time-consuming due to the amount of data required for training. Transfer learning helps data scientists transfer part of the knowledge gained by one network to another. This is similar to how humans transfer knowledge from one person to another so that everyone does not have to start learning every new thing from scratch. Transfer learning helps data scientists train neural networks faster and with fewer data points. There are two ways to perform transfer learning depending on the situation. They are as follows:

  • Use a pre-trained model: In this approach, we use a pre-trained neural network model and use it to solve the problem at hand. A pre-trained model is a neural network that has been created for a different purpose to the one at hand, has been trained on some other dataset, and has been saved for future reuse. The pre-trained model must be trained on a similar or same dataset to get reasonable accuracy.
  • Create a...
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