In pattern recognition a feature space is an abstract space where each pattern sample is represented as a point in n-dimensional space. Its dimension is determined by the number of features used to describe the patterns. Similar samples are grouped together, which allows the use of density estimation for finding patterns.
The concept is a most used one in classification techniques like k nearest neighbors or support vector machines.
Famous quotes containing the words feature and/or space:
“Knavery seems to be so much a the striking feature of its inhabitants that it may not in the end be an evil that they will become aliens to this kingdom.”
—George III (1738–1820)
“For tribal man space was the uncontrollable mystery. For technological man it is time that occupies the same role.”
—Marshall McLuhan (1911–1980)