Trait Optimizer

Source

pub trait Optimizer: Send + Sync {
    // Required methods
    fn step(
        &self,
        params: &mut [f64],
        gradients: &[f64],
        iteration: usize,
    ) -> Result<(), OptimizerError>;
    fn name(&self) -> &str;

    // Provided methods
    fn reset(&mut self) { ... }
    fn current_learning_rate(&self, _iteration: usize) -> f64 { ... }
}

Expand description

Trait for optimization algorithms.

Implement this trait to create custom optimizers compatible with LogosQ’s variational algorithms.

§Thread Safety

Optimizers must be Send + Sync for use in parallel optimization. Internal state should use appropriate synchronization primitives.

§Example

use logosq_optimizer::{Optimizer, OptimizerError};

struct MyOptimizer {
    learning_rate: f64,
}

impl Optimizer for MyOptimizer {
    fn step(
        &self,
        params: &mut [f64],
        gradients: &[f64],
        iteration: usize,
    ) -> Result<(), OptimizerError> {
        for (p, g) in params.iter_mut().zip(gradients.iter()) {
            *p -= self.learning_rate * g;
        }
        Ok(())
    }
     
    fn name(&self) -> &str { "MyOptimizer" }
}