Struct MirostatV2Sampler 

pub struct MirostatV2Sampler {
    pub tau: f32,
    pub eta: f32,
    /* private fields */
}

Mirostat v2 sampling — simpler and more stable than v1.

Rather than pre-truncating to top-m, v2 dynamically computes a probability threshold from mu, discards tokens below it, then samples from the rest.

Fields

tau: f32

Target surprise level (bits). Default: 5.0.

eta: f32

Learning rate for the feedback loop. Default: 0.1.

Implementations

impl MirostatV2Sampler

pub fn new(tau: f32, eta: f32) -> Self

Create a new v2 sampler.

pub fn sample(&mut self, logits: &[f32], rng: &mut LcgRng) -> usize

Sample a token index from raw logits, updating internal state.

pub fn reset(&mut self)

Reset the internal state to the initial value.

pub fn mu(&self) -> f32

Current mu value (for diagnostics / tests).

Trait Implementations

impl Clone for MirostatV2Sampler

fn clone(&self) -> MirostatV2Sampler

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MirostatV2Sampler

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

Formats the value using the given formatter.