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Kamil Faber

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#artificial intelligence Preprint Oct 2026

Sparse Autoencoders Can Induce Local Geometry for Mitigating Catastrophic Forgetting

This work introduces Sparse Autoencoder Geometric Anchoring (SAGA), which converts a Sparse Autoencoder (SAE) trained at each task boundary into local, low-rank constraints on representation drift, and establishes its local relation to latent code matching, define its spectral truncation error, and derive a conditional...

Kamil Faber, K. Filus, Łukasz Pawela · 0 citations
Open access Sep 2026

SPIRAL: A Novel Time Series to Image (TS2I) Transformation Method for Vision-Based Anomaly Detection

SPIRAL is introduced, a novel TS2I transformation designed for TSAD that maps time series windows onto a two-arm Archimedean spiral, producing asymmetric representations that preserve temporal locality while eliminating redundancy with linear time complexity with respect to window length.

Mateusz Smendowski, Kamil Faber, Piotr Nawrocki et al. · 0 citations
Preprint Aug 2026

PRISM: Powerful Time Series to Image (TS2I) Representations for Multivariate Anomaly Detection

PRISM is introduced, a plug-and-play meta-workflow enabling systematic construction and evaluation of image-based representations for multivariate TSAD and channelization is identified - how the channel dimension of multi-channel images is constructed - as a critical and previously understudied design dimension.

Mateusz Smendowski, Kamil Faber, Piotr Nawrocki et al. · 0 citations

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