Struct TermScorer

Source

pub struct TermScorer<'a> {
    pub iter: HorizontalBP128Iterator<'a>,
    pub max_score: f32,
    pub idf: f32,
    pub term_idx: usize,
    pub field_boost: f32,
    pub avg_field_len: f32,
}

Expand description

Term scorer with MaxScore info and BM25F support

Fields§

§iter: HorizontalBP128Iterator<'a>

Iterator over postings

§max_score: f32

Maximum possible score for this term (computed with BM25F upper bound)

§idf: f32

IDF component

§term_idx: usize

Term index (for tracking)

§field_boost: f32

Field boost for BM25F

§avg_field_len: f32

Average field length for BM25F length normalization

Implementations§

Source §

impl<'a> TermScorer<'a>

Source

pub fn new( posting_list: &'a HorizontalBP128PostingList, idf: f32, term_idx: usize, ) -> Self

Create a new term scorer with default BM25F parameters

Source

pub fn with_bm25f( posting_list: &'a HorizontalBP128PostingList, idf: f32, term_idx: usize, field_boost: f32, avg_field_len: f32, ) -> Self

Create a term scorer with BM25F parameters

Source

pub fn doc(&self) -> DocId

Current document

Source

pub fn score(&self) -> Score

Compute BM25F score for current document

Source

pub fn current_block_max_score(&self) -> f32

Get current block’s max score (for block-level pruning)

Source

pub fn advance(&mut self) -> DocId

Advance to next document

Source

pub fn seek(&mut self, target: DocId) -> DocId

Seek to doc >= target

Source

pub fn is_exhausted(&self) -> bool

Is this scorer exhausted?

Auto Trait Implementations§

§

impl<'a> UnwindSafe for TermScorer<'a>

Blanket Implementations§

Source §

impl<T> Any for T
where T: 'static + ?Sized,

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

impl<T> Borrow<T> for T
where T: ?Sized,

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source §

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

Source §

impl<T> From<T> for T

Source §

fn from(t: T) -> T

Returns the argument unchanged.

Source §

impl<T, U> Into for T
where U: From<T>,

Source §

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source §

impl<T> IntoEither for T

Source §

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §