Enum FusionStrategy 

pub enum FusionStrategy {
    Rrf {
        k: u32,
    },
    CombSum,
    CombMnz,
    Weighted {
        weights: Vec<f32>,
        normalize: bool,
    },
}

Fusion strategy enum for runtime dispatch.

This enables dynamic selection of fusion methods without trait objects.

Example

use rankops::FusionStrategy;

let list1 = vec![("d1", 1.0), ("d2", 0.5)];
let list2 = vec![("d2", 0.9), ("d3", 0.8)];
let strategy = FusionStrategy::rrf(60);
let result = strategy.fuse(&[&list1[..], &list2[..]]);

Variants

Rrf

RRF with custom k.

Fields

k: u32

CombSum

CombSUM.

CombMnz

CombMNZ.

Weighted

Weighted fusion with custom weights.

Fields

weights: Vec<f32>

normalize: bool

Implementations

impl FusionStrategy

pub fn fuse<I: Clone + Eq + Hash>(&self, runs: &[&[(I, f32)]]) -> Vec<(I, f32)>

Fuse multiple ranked lists.

Arguments

• runs - Slice of ranked lists, each as (ID, score) pairs

Returns

Combined list sorted by fused score (descending)

pub fn name(&self) -> &'static str

Human-readable name of this fusion method.

pub fn uses_scores(&self) -> bool

Whether this method uses score values (true) or only ranks (false).

impl FusionStrategy

pub fn rrf(k: u32) -> Self

Create RRF strategy with custom k.

pub fn rrf_default() -> Self

Create RRF strategy with default k=60.

pub fn combsum() -> Self

Create CombSUM strategy.

pub fn combmnz() -> Self

Create CombMNZ strategy.

pub fn weighted(weights: Vec<f32>, normalize: bool) -> Self

Create weighted strategy with custom weights.

Trait Implementations

impl Clone for FusionStrategy

fn clone(&self) -> FusionStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FusionStrategy

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

Formats the value using the given formatter.