Struct PrismConfig

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pub struct PrismConfig {Show 13 fields
    pub m_local: usize,
    pub m_greedy: usize,
    pub m_random: usize,
    pub t: usize,
    pub alpha: f32,
    pub vamana_alpha: f32,
    pub beam_width: usize,
    pub metric: Metric,
    pub sigma_high: f32,
    pub sigma_low: f32,
    pub beta: f32,
    pub epsilon: f32,
    pub binary_rerank: usize,
}

Expand description

Configuration for PRISM index construction.

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§m_local: usize

Local degree (edges within each leaf cell).

§m_greedy: usize

Greedy cross-partition degree.

§m_random: usize

Random cross-partition degree (must be even).

§t: usize

Covering strength for attribute-diverse selection.

§alpha: f32

Proximity-diversity tradeoff for cross-neighbor selection (0 = pure diversity).

§vamana_alpha: f32

Vamana pruning parameter (standard DiskANN: 1.2).

§beam_width: usize

Beam width for candidate search during construction (paper: 10 * M_g).

§metric: Metric

Distance metric.

§sigma_high: f32

Selectivity threshold for HIGH regime.

§sigma_low: f32

Selectivity threshold for LOW regime.

§beta: f32

Bridge budget multiplier for MID regime.

§epsilon: f32

Search pruning tolerance for filtered queries.

§binary_rerank: usize

Binary pre-filter rerank factor. Top binary_rerank * ef Hamming candidates are reranked with SQ8. 0 disables binary pre-filter.

Trait Implementations§

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impl Clone for PrismConfig

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fn clone(&self) -> PrismConfig

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

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impl Debug for PrismConfig

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

Formats the value using the given formatter. Read more

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impl Default for PrismConfig

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl UnwindSafe for PrismConfig

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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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

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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

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