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Demi'an Fraiman

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#machine learning Preprint Mar 2026

On the Expressive Power of Transformers for Contextual Relations

This work develops a mathematical framework based on probability and optimal transport that provides a mathematical characterization of the expressive power of Transformers for contextual relations and shows how the choice of normalization determines the probabilistic structure of the relations represented by attention...

Demi'an Fraiman · 1 citation