Person
Tschannen
Tschannen is a researcher who co-authored the paper "A Fix for Softmax and Cross-Entropy" with Barron and Gnanapragasam, studying numerical precision issues in cross-entropy computation.
Timeline (last 90 days)
Nov 2
The paper "A Fix for Softmax and Cross-Entropy" by Barron, Gnanapragasam and Tschannen (October 2026) points out that standard cross-entropy computation rounds the gradient of the correct answer to exactly zero when the model is sufficiently confident (a margin of about 5.5 under bf16).
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