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Book Overview & Buying
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Table Of Contents
Machine Learning For Dummies
By :
Chapter 13
IN THIS CHAPTER
Deciding to get more data or start preparations
Fixing bad data like wrong or missing values
Creating new meaningful features
Compressing and reconstructing any redundant information
Understanding why you should beware of outliers
When building a new house, before thinking of any beautiful architecture, aesthetic addition, or even furniture designed to beautify it, you need to build a solid foundation over which to construct walls. In addition, the more difficult the terrain you have to work on, the more time and effort it will take. If you neglect to create a sturdy foundation, nothing built on it can withstand time and nature for long.
The same issue exists in machine learning. No matter the level of sophistication of the learning algorithm, if you don’t prepare your foundation well — that is, your data — your algorithm won’t last long when tested in real data situations. You can’t prepare data by just...
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