Author

H. Lệ

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#machine learning Preprint Oct 2026

Learning Decision-Stump Thresholds in Context: Dynamics of Softmax Attention

Estimating a decision threshold requires locating observations near an unknown boundary. We study how gradient-based pretraining learns this statistical rule in a two-parameter softmax-attention model with a fixed feature and inequality direction. Pretraining uses labeled contexts and their true thresholds; a fresh thr...

H. Lệ, Jackie Lok, Atsushi Nitanda et al. · 0 citations

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