ALVIN is an army vehicle driving algorithm using ANN. The program learns by observing a human driver:

• 20 times a second, a picture of the road ahead is taken, digitized, & simplified.
• Steering angle response of the driver is also recorded.
• The data is used to train ALVIN.
• After a few minutes of training, the software drives the vehicle on the single road by itself.

M = Number of training examples
x_i = i^th Input variable or feature
n = Number of features
m = Number of training examples
y = Output variables or target variables
(x, y) = training example
i^th training example = (xⁱ, yⁱ)
For conciseness, define x₀ = 1
y = h(x) = θ₀x₀ + θ₁x₁ + θ₂x₂ + ...
y = h(x) = ∑_{i=0 to n} θ_ix_i = θ^TX
θ = Parameters of the learning algorithm