Zahraa S. Abdallah

2 papers indexed

arxivcs.CLcs.AIcs.LG2026-06-26

VASAE: Naming SAE Dictionary Directions with Vocabulary-Aligned Anchoring

Kairui Zhang, Ziwen Yu, Zahraa S. Abdallah, Martha Lewis

Sparse autoencoders (SAEs) provide useful decompositions of Transformer residual streams, but their learned features are usually named post hoc rather than directly connected to the Transformer's token vocabulary. We introduce Vocabulary-Aligned Sparse Autoencoder (VASAE), a meth…

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arxivcs.LGcs.AI2026-06-26

Deployment-Side Adaptiveness in Multi-Horizon Volatility Forecasting

Riku Green, Zahraa S. Abdallah, Telmo M Silva Filho

In financial forecasting, predictive performance depends not only on which model is trained, but also on how the trained model is deployed. We study this issue in multi-horizon volatility forecasting. Our starting point is that a trained multi-output (MIMO) forecaster does not de…

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