Source

Santurkar et al. (2018), LIT-015 — ARXIV-1806.02375.

Why this is retired rather than rewritten

Two problems, and either alone would be enough.

It is not actionable. “Monitor loss landscape smoothness during training” names no signal you could plot, no threshold, and no response — the same gap

that retired SOTA-073 and SOTA-074. Landscape smoothness is not a quantity training loops compute; the nearest practical proxy is the Hessian eigenvalue ratio in SOTA-011, which is expensive and periodic rather than monitored.

Its mechanism is another paper’s. Smoothing, predictive gradients and Lipschitzness are Santurkar, Tsipras, Ilyas and Madry — How Does Batch Normalization Help Optimization?, now filed in the record — and they were attributed to LIT-015 because that note carried the wrong author and takeaways. The finding is real and it is an explanation of why batch normalization works, not an instruction to anyone running a job.

The explanation survives where it belongs, in the literature note. What is retired is the attempt to turn it into a practice.