Trait DistanceFunction 

pub trait DistanceFunction<Left, Right, To = f32> {
    // Required method
    fn evaluate_similarity(&self, x: Left, y: Right) -> To;
}

An overloadable, 2-argument distance function with a parameterized return type.

Unlike PureDistanceFunction, this takes a functor as the receiver. This allows distance functors to contain auxiliary state required to do their job (for example, access to some shared quantization tables).

Required Methods

fn evaluate_similarity(&self, x: Left, y: Right) -> To

Perform a distance computation between the left-hand and right-hand arguments.

Implementors

impl<T, U> DistanceFunction<&[T], &[U]> for Distance<T, U>

where T: 'static, U: 'static,