3 papers
math.NA2025
Matrix Phylogeny: Compact Spectral Fingerprints for Trap-Robust Preconditioner Selection
Jinwoo Baek
Matrix Phylogeny introduces compact spectral fingerprints (CSF/ASF) that characterize matrices at the family level. These fingerprints are low-dimensional, eigendecomposition-free…
cs.LG2025
Chebyshev Moment Regularization (CMR): Condition-Number Control with Moment Shaping
Jinwoo Baek
We introduce \textbf{Chebyshev Moment Regularization (CMR)}, a simple, architecture-agnostic loss that directly optimizes layer spectra. CMR jointly controls spectral edges via a l…
cs.LG2025
Numerical Fragility in Transformers: A Layer-wise Theory for Risk Estimation and Selective Stabilization
Jinwoo Baek
Low-precision execution can induce substantial forward discrepancies in Transformers even for fixed weights and input, yet these discrepancies are usually monitored only at the out…