Struct EvidenceIftGradientTerms 

pub struct EvidenceIftGradientTerms<'a> {
    pub dbeta_drho: ArrayView2<'a, f64>,
    pub du_drho: ArrayView2<'a, f64>,
    pub value_beta: ArrayView1<'a, f64>,
    pub value_u: ArrayView1<'a, f64>,
    pub logdet_h_beta: ArrayView1<'a, f64>,
    pub logdet_h_u: ArrayView1<'a, f64>,
}

IFT terms needed to differentiate the optimized Laplace evidence through the fitted mode (β*(ρ), u*(ρ)).

For each hyperparameter ρ_a, the correction added to the direct trace is

F_β · β_a + F_u · u_a
+ 0.5 (∂_β log|H| · β_a + ∂_u log|H| · u_a).

At an exact KKT point the value-gradient pieces are zero, but they are explicit here so the exported gradient matches the optimized objective whenever callers carry a certified nonzero residual correction.

Fields

dbeta_drho: ArrayView2<'a, f64>

du_drho: ArrayView2<'a, f64>

value_beta: ArrayView1<'a, f64>

value_u: ArrayView1<'a, f64>

logdet_h_beta: ArrayView1<'a, f64>

logdet_h_u: ArrayView1<'a, f64>

Trait Implementations

impl<'a> Clone for EvidenceIftGradientTerms<'a>

fn clone(&self) -> EvidenceIftGradientTerms<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.