pub struct Bm25Params {
pub k1: f32,
pub b: f32,
}Expand description
BM25 ranking parameters.
Controls how term frequency and document length affect scoring.
The defaults (k1 = 1.2, b = 0.75) are standard Okapi BM25 values
that work well across most corpora.
Fields§
§k1: f32Term frequency saturation factor. Higher values give more weight to repeated terms. Range: 0.5–3.0. Default: 1.2.
b: f32Length normalization factor.
0.0 = no length normalization, 1.0 = full normalization.
Default: 0.75.
Trait Implementations§
Source§impl Clone for Bm25Params
impl Clone for Bm25Params
Source§fn clone(&self) -> Bm25Params
fn clone(&self) -> Bm25Params
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreimpl Copy for Bm25Params
Source§impl Debug for Bm25Params
impl Debug for Bm25Params
Source§impl Default for Bm25Params
impl Default for Bm25Params
Source§impl<'de> Deserialize<'de> for Bm25Params
impl<'de> Deserialize<'de> for Bm25Params
Source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
Auto Trait Implementations§
impl Freeze for Bm25Params
impl RefUnwindSafe for Bm25Params
impl Send for Bm25Params
impl Sync for Bm25Params
impl Unpin for Bm25Params
impl UnsafeUnpin for Bm25Params
impl UnwindSafe for Bm25Params
Blanket Implementations§
Source§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
Source§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
Source§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata,
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
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Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
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Source§impl<T> LayoutRaw for T
impl<T> LayoutRaw for T
Source§fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
Returns the layout of the type.
Source§impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
Source§unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
Returns whether the given value has been niched. Read more
Source§fn resolve_niched(out: Place<NichedOption<T, N1>>)
fn resolve_niched(out: Place<NichedOption<T, N1>>)
Writes data to
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Source§impl<SS, SP> SupersetOf<SS> for SPwhere
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impl<SS, SP> SupersetOf<SS> for SPwhere
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fn to_subset(&self) -> Option<SS>
The inverse inclusion map: attempts to construct
self from the equivalent element of its
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fn is_in_subset(&self) -> bool
Checks if
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Use with care! Same as
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fn from_subset(element: &SS) -> SP
The inclusion map: converts
self to the equivalent element of its superset.