Enum ExploitStrategy 

#[non_exhaustive]
pub enum ExploitStrategy {
    Truncation {
        fraction: f64,
    },
    Binary {
        threshold: f64,
    },
}

PBT exploit strategy: how underperformers learn from top performers.

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.

Truncation

Bottom fraction copies weights+hyperparams from top fraction.

Fields

fraction: f64

Fraction of the population treated as top/bottom (the PbtRunner clamps it to at most half the population).

Binary

Each member is compared to a random other; loser copies winner.

Fields

threshold: f64

Intended fitness margin the winner must exceed before the loser copies it. The current PbtRunner copies on any strict fitness loss and does not read this field yet.

Trait Implementations

impl Clone for ExploitStrategy

fn clone(&self) -> ExploitStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExploitStrategy

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ExploitStrategy

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ExploitStrategy

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.