Paper: Why the 'Third Axis' of Exploration is Key to Model Generalization
NielsRogge · x · 2026-08-03
Michael Timothy Bennett's new paper, Why the Third Axis Is Weakness, explores the mechanism of exploration in pre-training. The author argues that traditional single-sample training cannot distinguish between a model that memorizes a single output and one that has learned the entire distribution.
The paper proposes treating exploration as a "third axis" of pre-training and connects it to the concept of "weakness." It proves theoretically that by increasing the number of sampled candidates $K$ and training on the closest match, the probability of meeting all output requirements on unseen contexts is strictly proportional to the model's "weakness." Therefore, when selecting or auditing generative models, one should prioritize measured "weakness" over simple mode counts.
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