Struct TransformerFfn

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pub struct TransformerFfn {
    pub d_model: usize,
    pub d_ff: usize,
    pub w1: Vec<f64>,
    pub b1: Vec<f64>,
    pub w2: Vec<f64>,
    pub b2: Vec<f64>,
}

Expand description

Position-wise feed-forward network used inside a transformer block.

FFN(x) = max(0, x W1 + b1) W2 + b2

Applied identically to each position in the sequence.

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§d_model: usize

Input / output dimensionality.

§d_ff: usize

Inner (hidden) dimensionality.

§w1: Vec<f64>

W1: [d_ff × d_model]

§b1: Vec<f64>

b1: [d_ff]

§w2: Vec<f64>

W2: [d_model × d_ff]

§b2: Vec<f64>

b2: [d_model]

Implementations§

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impl TransformerFfn

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pub fn new(d_model: usize, d_ff: usize) -> Self

Create with zero weights.

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pub fn forward(&self, x: &[f64], seq_len: usize) -> Vec<f64>

Forward pass over a sequence [seq_len × d_model] (flat row-major).

Trait Implementations§

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impl Clone for TransformerFfn

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fn clone(&self) -> TransformerFfn

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 TransformerFfn

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for TransformerFfn

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> Downcast<T> for T

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fn downcast(&self) -> &T

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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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