concision_core/traits/
propagation.rs

1/*
2    Appellation: predict <module>
3    Contrib: @FL03
4*/
5
6/// [Backward] propagate a delta through the system;
7pub trait Backward<X, Delta = X> {
8    type Elem;
9    type Output;
10
11    fn backward(
12        &mut self,
13        input: &X,
14        delta: &Delta,
15        gamma: Self::Elem,
16    ) -> crate::Result<Self::Output>;
17}
18
19/// This trait denotes entities capable of performing a single forward step
20pub trait Forward<Rhs> {
21    type Output;
22    /// a single forward step
23    fn forward(&self, input: &Rhs) -> crate::Result<Self::Output>;
24    /// this method enables the forward pass to be generically _activated_ using some closure.
25    /// This is useful for isolating the logic of the forward pass from that of the activation
26    /// function and is often used by layers and models.
27    fn forward_then<F>(&self, input: &Rhs, then: F) -> crate::Result<Self::Output>
28    where
29        F: FnOnce(Self::Output) -> Self::Output,
30    {
31        self.forward(input).map(then)
32    }
33}
concision_core/traits/propagation.rs

concision_core/traits/
propagation.rs
