Editing Feature (machine learning) (section)

==Examples==
{{also|Feature (computer vision)}}
In [[character recognition]], features may include [[histogram]]s counting the number of black pixels along horizontal and vertical directions, number of internal holes, stroke detection and many others.

In [[speech recognition]], features for recognizing [[phonemes]] can include noise ratios, length of sounds, relative power, filter matches and many others.

In [[spam (electronic)|spam]] detection algorithms, features may include the presence or absence of certain email headers, 
the email structure, the language, the frequency of specific terms, the grammatical correctness of the text.

In [[computer vision]], there are a large number of possible [[feature (computer vision)|features]], such as edges and objects.