Struct DefaultStateUpdater 

pub struct DefaultStateUpdater {
    pub alpha: f32,
}

Default ARIA state updater.

Skill update: performance = success × (0.5 + 0.5 × (1 - effort)) skill = skill + alpha × (performance - skill)

Optimism update: success + effort < 0.4 → optimism += 0.02 (easy win → push harder) !success → optimism -= 0.01 (failure → ease back) otherwise → unchanged always clamped to [OPTIMISM_FLOOR, OPTIMISM_CEIL]

resolved_set: item added if success == true

Fields

alpha: f32

Learning rate for skill update. Default 0.05.

Implementations

impl DefaultStateUpdater

pub fn new(alpha: f32) -> Self

Trait Implementations

impl Default for DefaultStateUpdater

fn default() -> Self

Returns the “default value” for a type.

impl StateUpdater for DefaultStateUpdater

fn update( &self, state: &ProfileState, item: &dyn Scoreable, signal: &Signal, now: u64, ) -> ProfileState

Produce a new ProfileState given current state, the item interacted with, the signal reported, and the current timestamp.