Enum DecayFunction 

pub enum DecayFunction {
    None,
    Exponential {
        half_life: f64,
    },
    Linear {
        max_age: f64,
    },
    Gaussian {
        sigma: f64,
    },
}

Time decay function for relevance scoring

Variants

None

No decay (standard similarity search)

Exponential

Exponential decay: score * exp(-lambda * age) half_life: time in seconds for score to decay to 50%

Fields

half_life: f64

Linear

Linear decay: score * max(0, 1 - age / max_age) max_age: maximum age in seconds

Fields

max_age: f64

Gaussian

Gaussian decay: score * exp(-(age^2) / (2 * sigma^2)) sigma: standard deviation in seconds

Fields

sigma: f64

Implementations

impl DecayFunction

pub fn apply(&self, score: f32, age_seconds: f64) -> f32

Apply decay to a similarity score based on age

Trait Implementations

impl Clone for DecayFunction

fn clone(&self) -> DecayFunction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DecayFunction

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DecayFunction

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for DecayFunction

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

where __S: Serializer,

Serialize this value into the given Serde serializer.