Struct FeedbackSession 

pub struct FeedbackSession {
    pub config: FeedbackConfig,
    /* private fields */
}

Maintains per-triple learned weights across a user session.

Weights start at 1.0 and are adjusted multiplicatively with each feedback signal. Use FeedbackSession::apply_weights to rescore a result set before the next retrieval round.

Fields

config: FeedbackConfig

Configuration hyperparameters.

Implementations

impl FeedbackSession

pub fn new() -> Self

pub fn with_config(config: FeedbackConfig) -> Self

pub fn record(&mut self, event: FeedbackEvent)

Record a feedback event and update the triple’s weight.

pub fn like(&mut self, subject: &str, predicate: &str, object: &str)

Convenience: record a positive signal for a triple.

pub fn dislike(&mut self, subject: &str, predicate: &str, object: &str)

Convenience: record a negative signal for a triple.

pub fn weight(&self, subject: &str, predicate: &str, object: &str) -> f64

Return the learned weight for a triple (1.0 if unseen).

pub fn apply_weights( &self, scores: &HashMap<String, f64>, ) -> HashMap<String, f64>

Apply learned weights to a set of (triple_key, score) pairs.

The adjusted score is original_score * weight.

pub fn history(&self) -> &[FeedbackEvent]

Return the full event history.

pub fn positive_count(&self) -> usize

Count positive feedback events.

pub fn negative_count(&self) -> usize

Count negative feedback events.

pub fn reset(&mut self)

Reset all learned weights and clear history.

Trait Implementations

impl Clone for FeedbackSession

fn clone(&self) -> FeedbackSession

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FeedbackSession

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

Formats the value using the given formatter.

impl Default for FeedbackSession

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FeedbackSession

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for FeedbackSession

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

where __S: Serializer,

Serialize this value into the given Serde serializer.