Struct QueryMetrics 

pub struct QueryMetrics {
    pub k: usize,
    pub recall_at_k: f32,
    pub precision_at_k: f32,
    pub ndcg_at_k: Option<f32>,
    pub true_positives: usize,
    pub false_positives: usize,
}

Evaluation metrics for a single query

Fields

k: usize

k value (number of results)

recall_at_k: f32

Recall@k: Fraction of true top-k results found

precision_at_k: f32

Precision@k: Fraction of returned results that are relevant

ndcg_at_k: Option<f32>

nDCG@k: Normalized Discounted Cumulative Gain

true_positives: usize

Number of true positives found

false_positives: usize

Number of false positives found

Implementations

impl QueryMetrics

pub fn f1_score(&self) -> f32

Calculate F1 score (harmonic mean of precision and recall)

Trait Implementations

impl Clone for QueryMetrics

fn clone(&self) -> QueryMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryMetrics

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for QueryMetrics

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for QueryMetrics

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

where __S: Serializer,

Serialize this value into the given Serde serializer.