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AdamOptimizer

oxirs_embed::training_online

Struct AdamOptimizer 

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pub struct AdamOptimizer {
    pub m: Vec<f64>,
    pub v: Vec<f64>,
    pub t: u64,
    pub lr: f64,
    pub beta1: f64,
    pub beta2: f64,
    pub epsilon: f64,
}
Expand description

Adam optimizer for a flat parameter vector.

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§m: Vec<f64>

First moment (mean of gradient).

§v: Vec<f64>

Second moment (uncentred variance of gradient).

§t: u64

Step counter (1-indexed after first call to step).

§lr: f64

Learning rate.

§beta1: f64

Exponential decay rate for first moment.

§beta2: f64

Exponential decay rate for second moment.

§epsilon: f64

Numerical stability epsilon.

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impl AdamOptimizer

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pub fn new(param_count: usize, lr: f64) -> Self

Create a new Adam optimizer for param_count parameters.

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pub fn step(&mut self, params: &mut [f64], gradients: &[f64])

Perform one Adam update step.

Updates params in-place using gradients.

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pub fn reset(&mut self)

Reset all moment estimates and step counter.

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pub fn step_count(&self) -> u64

Number of steps taken since last reset.

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impl Clone for AdamOptimizer

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fn clone(&self) -> AdamOptimizer

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for AdamOptimizer

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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<T> Any for T
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fn borrow_mut(&mut self) -> &mut T

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impl<T> CloneToUninit for T
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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const ALIGN: usize

The alignment of pointer.
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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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type Output = T

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fn vzip(self) -> V

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