## Approximate K-Nearest Neighbours

KNN compares the class or value of the closest K samples, as specified by the given metric, and returns the averaged response of those samples. Approximate KNN
More information on Wikipedia and on the ANN website.
Parameters:

- K: number of neighbours to evaluate
- Metric: type of metric to be used

- L1-p: norm of degree 1-p
- L-inf: infinite norm

- Power: power for Lp norm