Search Results for author: Apratim Dey

Found 2 papers, 0 papers with code

Is Model Collapse Inevitable? Breaking the Curse of Recursion by Accumulating Real and Synthetic Data

no code implementations1 Apr 2024 Matthias Gerstgrasser, Rylan Schaeffer, Apratim Dey, Rafael Rafailov, Henry Sleight, John Hughes, Tomasz Korbak, Rajashree Agrawal, Dhruv Pai, Andrey Gromov, Daniel A. Roberts, Diyi Yang, David L. Donoho, Sanmi Koyejo

The proliferation of generative models, combined with pretraining on web-scale data, raises a timely question: what happens when these models are trained on their own generated outputs?

Image Generation

With big data come big problems: pitfalls in measuring basis risk for crop index insurance

no code implementations29 Sep 2022 Matthieu Stigler, Apratim Dey, Andrew Hobbs, David Lobell

More precisely, we derive the asymptotic distribution of the relative share of the first eigenvalue of the covariance matrix, a measure of systematic risk in index insurance.

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