O'Reilly logo

Pattern Recognition by Matthias Nagel, Matthias Richter, Jürgen Beyerer

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

2Features

A good understanding of features is fundamental for designing a proper pattern recognition system. Thus this chapter deals with all aspects of this concept, beginning with a mere classification of the kinds of features, up to the methods for reducing the dimensionality of the feature space. A typical beginner’s mistake is to apply mathematical operations to the numeric representation of a feature, just because it is syntactically possible, albeit these operations have no meaning whatsoever for the underlying problem. Therefore, the first section elaborates on the different types of possible features and their traits.

2.1Types of features and their traits

In empiricism, the scale of measurement (also: level of measurement) is an important ...

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