The total number of nonzero elements in a vector.
For example, the L0 norm(distance) of the vectors (0, 0) and (0, 2) is 1.
Reference
https://livebook.manning.com/concept/machine-learning/l0-norm
The total number of nonzero elements in a vector.
For example, the L0 norm(distance) of the vectors (0, 0) and (0, 2) is 1.
https://livebook.manning.com/concept/machine-learning/l0-norm