Implementations and Applications of Machine Learning by Unknown

Author:Unknown
Language: eng
Format: epub
ISBN: 9783030378301
Publisher: Springer International Publishing

(21a)

(21b)

Assuming that and are, respectively, arbitrary negative and positive samples in X, a rescale of leads to:

(22a)

(22b)

A variable y i is introduced to unify Eqs. 22a and 22b and to obtain a combined generic equation for the negative and positive classes. The variable y i is part of a set of labels Y = {y i|i = 1, …, N, y i ∈{1, −1}}, with each label y i assigned to each point x i, where y i = −1 if x i ∈ C − and y i = 1 if x i ∈ C + for all i ∈{1, …, N}. Multiplying y i into either Eq. 22a or Eq. 22b leads to the same expression as below:

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