Trait Sampler

Source

pub trait Sampler: Send + Sync {
    // Required method
    fn sample(
        &self,
        distribution: &Distribution,
        trial_id: u64,
        history: &[CompletedTrial],
    ) -> ParamValue;
}

Expand description

Trait for pluggable parameter sampling strategies.

Samplers are responsible for generating parameter values based on the distribution and historical trial data. The trait requires Send + Sync to support concurrent and async optimization.

§Examples

Implementing a custom sampler:

use optimizer::{Sampler, ParamValue, Distribution, CompletedTrial};

struct MySampler;

impl Sampler for MySampler {
    fn sample(
        &self,
        distribution: &Distribution,
        trial_id: u64,
        history: &[CompletedTrial],
    ) -> ParamValue {
        // Custom sampling logic here
        todo!()
    }
}