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This paper analyzes residual scaling in looped (weight-tied) transformers, showing that weight sharing requires stronger scaling (1/N) than standard residual networks, and derives a factored parameterization that enables hyperparameter transfer across loop counts without retuning.
This research introduces a technique to loop frozen, off-the-shelf transformer checkpoints at inference time by using damped Runge-Kutta substeps, treating transformer layers as Euler steps in a residual ODE. This allows extra latent compute without fine-tuning, architecture changes, or new weights, showing gains on knowledge tasks like MMLU-Pro, GPQA, and ARC.
Angeliki Giannou, co-inventor of Looped Transformers, has successfully defended her PhD thesis and is set to begin a new role. Congratulations were shared by Dimitris Papailiopoulos on social media.