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ProgressiveDistillation

entrenar::hf_pipeline

Struct ProgressiveDistillation 

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pub struct ProgressiveDistillation {
    pub layer_mapping: Vec<(usize, usize)>,
    pub hidden_weight: f32,
    pub projection: Option<Array2<f32>>,
}
Expand description

Progressive Knowledge Distillation

Matches student hidden states to teacher hidden states at selected layers. Based on Sun et al. (2019).

Fields§

§layer_mapping: Vec<(usize, usize)>

Layer mapping: (student_layer, teacher_layer)

§hidden_weight: f32

Loss weight for hidden state matching

§projection: Option<Array2<f32>>

Projection matrix for dimension alignment (student_dim x teacher_dim) Used when student hidden size differs from teacher hidden size.

Implementations§

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impl ProgressiveDistillation

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pub fn new(layer_mapping: Vec<(usize, usize)>) -> Self

Create new progressive distillation config

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pub fn with_projection(self, student_dim: usize, teacher_dim: usize) -> Self

Set projection layer for dimension alignment

Creates a linear projection matrix to align student hidden states to teacher hidden size. Initialized with Xavier uniform.

§Arguments
  • student_dim - Student model hidden dimension
  • teacher_dim - Teacher model hidden dimension
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pub fn with_weight(self, weight: f32) -> Self

Set hidden state loss weight

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pub fn hidden_state_loss( &self, student_hidden: &[Array2<f32>], teacher_hidden: &[Array2<f32>], ) -> f32

Compute hidden state matching loss

Uses MSE loss between projected student and teacher hidden states. If projection layer is set and shapes differ, projects student to teacher dimension.

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impl Clone for ProgressiveDistillation

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fn clone(&self) -> ProgressiveDistillation

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 ProgressiveDistillation

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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 ProgressiveDistillation

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fn default() -> Self

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

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