Enum AcquisitionFunction 

#[non_exhaustive]
pub enum AcquisitionFunction {
    EI,
    PI,
    UCB(f64),
    LCB(f64),
}

Acquisition function for Bayesian optimisation.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

EI

Expected Improvement: EI(x) = sigma * [z*Phi(z) + phi(z)]

PI

Probability of Improvement.

UCB(f64)

Upper Confidence Bound with exploration weight kappa.

LCB(f64)

Lower Confidence Bound with exploration weight kappa.

Trait Implementations

impl Clone for AcquisitionFunction

fn clone(&self) -> AcquisitionFunction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AcquisitionFunction

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for AcquisitionFunction

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for AcquisitionFunction

fn eq(&self, other: &AcquisitionFunction) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for AcquisitionFunction

impl StructuralPartialEq for AcquisitionFunction