Bias (machine learning)

An intercept or offset from an origin. Bias is a parameter in machine learning models, which is symbolized by either of the following:

For example, bias is the $b$ in the following formula:

y^{'} = b + w_{1} x_{1} + w_{2} x_{2} + \dots + w_{n} x_{n}

In a simple two-dimensional line, bias just means “y-intercept.”¹

Footnotes