O'Reilly logo

Julia for Data Science by Zacharias Voulgaris PhD

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

CHAPTER 8: Manipulating the Fabric of the Data Space

Chapter008.jpg

Contrary to what many people think, more data is not always better. This is particularly true when it comes to additional features (or dimensions). Take for example Sherlock Holmes, the famous fictional detective, who managed to solve the most baffling cases. Although his observation skills were unparalleled, a big part of his success was due to his ability to focus on the most essential aspects of the problem, eliminating all the unnecessary information. This is the human equivalent of dimensionality reduction in all its glory.

Of course, keeping all the features in a dataset can be a good ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required