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Research map / Architectures and efficiency / RNNs and normalization

How a Student becomes a Teacher: learning and forgetting through Spectral methods

NeurIPS 2023 · Architectures and efficiency › RNNs and normalization · approach: Mechanistic circuit interpretability · 8 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use spectral parametrization with regularization instead of conventional parametrization with weight decayStudent networks with h > 20 in the Gaussian teacher-student task · Gaussian teacher-student testMSE: 9 ± 1 × 10^{-3} (S) and 9 ± 3 × 10^{-3} (Sλ)No clear effect
Add spectral parametrization and regularization, then prune nodes ranked by the spectral relevance indicatorSλ(h) · Gaussian teacher-student taskMSE after pruningMixed
Replace spectral parametrization with conventional parametrization and L2 weight regularization (ablation)Student networks · Gaussian teacher-student taskTeacher-like path distributionHurt
Remove nodes with low spectral relevance while retaining the teacher-sized core (ablation)Sλ(h) · Gaussian teacher-student taskGeneralization performanceNo clear effect

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