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cs.LG2025
Blink of an eye: a simple theory for feature localization in generative models
Marvin Li, Aayush Karan, Sitan Chen
Large language models can exhibit unexpected behavior in the blink of an eye. In a recent computer use demo, a language model switched from coding to Googling pictures of Yellowsto…
cs.LG2024
Critical windows: non-asymptotic theory for feature emergence in diffusion models
Marvin Li, Sitan Chen
We develop theory to understand an intriguing property of diffusion models for image generation that we term critical windows. Empirically, it has been observed that there are narr…