Struct QuantizedVector

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pub struct QuantizedVector {Show 15 fields
    pub code: Vec<u16>,
    pub binary_code_packed: Vec<u8>,
    pub ex_code_packed: Vec<u8>,
    pub binary_code_unpacked: Vec<u8>,
    pub ex_code_unpacked: Vec<u16>,
    pub ex_bits: u8,
    pub dim: usize,
    pub delta: f32,
    pub vl: f32,
    pub f_add: f32,
    pub f_rescale: f32,
    pub f_error: f32,
    pub residual_norm: f32,
    pub f_add_ex: f32,
    pub f_rescale_ex: f32,
}

Expand description

Quantised representation of a vector using packed format (aligned with C++ implementation).

Binary codes and extended codes are stored in bit-packed format for memory efficiency.

binary_code_packed: 1 bit per dimension
ex_code_packed: ex_bits per dimension

For performance-critical search operations, unpacked codes are cached to avoid repeated unpacking overhead.

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§code: Vec<u16>

Full code (binary_code | ex_code), kept for backward compatibility

§binary_code_packed: Vec<u8>

Packed binary code (1 bit per element)

§ex_code_packed: Vec<u8>

Packed extended code (ex_bits per element)

§binary_code_unpacked: Vec<u8>

Cached unpacked binary code (for fast search)

§ex_code_unpacked: Vec<u16>

Cached unpacked ex code (for fast search)

§ex_bits: u8

Number of extended bits per element

§dim: usize

Original dimension (before padding)

§delta: f32§vl: f32§f_add: f32§f_rescale: f32§f_error: f32§residual_norm: f32§f_add_ex: f32§f_rescale_ex: f32

Implementations§

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impl QuantizedVector

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pub fn unpack_binary_code(&self) -> Vec<u8> ⓘ

Unpack binary code for computation (legacy method, prefer using cached binary_code_unpacked)

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pub fn unpack_ex_code(&self) -> Vec<u16>

Unpack extended code for computation (legacy method, prefer using cached ex_code_unpacked)

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pub fn ensure_unpacked_cache(&mut self)

Ensure unpacked caches are populated (call after deserialization)

Trait Implementations§

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impl Clone for QuantizedVector

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fn clone(&self) -> QuantizedVector

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for QuantizedVector

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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<'de> Deserialize<'de> for QuantizedVector

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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

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impl Serialize for QuantizedVector

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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations§

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impl UnwindSafe for QuantizedVector

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<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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