Struct LexicalScorer 

pub struct LexicalScorer;

Dependency-free scorer: cosine similarity over Unicode word term-frequency vectors.

Deterministic and offline — the reference scorer for the working tier and tests.

Implementations

impl LexicalScorer

pub fn new() -> Self

Creates the scorer.

pub fn score(query: &str, document: &str) -> f64

Pure cosine over term-frequency vectors (exposed for direct testing).

Trait Implementations

impl Clone for LexicalScorer

fn clone(&self) -> LexicalScorer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LexicalScorer

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

Formats the value using the given formatter.

impl Default for LexicalScorer

fn default() -> LexicalScorer

Returns the “default value” for a type.

impl SemanticScorer for LexicalScorer

fn similarity<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, query: &'life1 str, document: &'life2 str, ) -> Pin<Box<dyn Future<Output = f64> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Similarity between query and document in [0, 1].