Neural Networks, Machine Learning, Deep Learning, Artificial Intelligence, Data Analysis.
boundary using a set of lines comes from the fact that any ANN is built using the single layer perceptron as a building block. The single layer perceptron is a linear classifier which separates the classes using a line created according to the following equation: y = w_1*x_1 + w_2*x_2 + ⋯ + w_i*x_i