Convolutional operation

The following two-step mathematical operation:¹

1. Element-wise multiplication of the convolutional filter and a slice of an input matrix. (The slice of the input matrix has the same rank and size as the convolutional filter.)
2. Summation of all the values in the resulting product matrix.

A convolutional layer consists of a series of convolutional operations, each acting on a different slice of the input matrix.

Footnotes

1. developers.google.com/machine-learning/glossary#convolutional_operation ↩