Generative Data Mining with Longtail-Guided Diffusion

• URL: http://arxiv.org/abs/2502.01980v2
• Date: Thu, 26 Jun 2025 21:17:54 GMT
• Title: Generative Data Mining with Longtail-Guided Diffusion
• Authors: David S. Hayden, Mao Ye, Timur Garipov, Gregory P. Meyer, Carl Vondrick, Zhao Chen, Yuning Chai, Eric Wolff, Siddhartha S. Srinivasa,
• Abstract summary: We develop a proactive longtail discovery process by imagining additional data during training.<n>We leverage these signals as guidance to generate additional training data from a latent diffusion model.<n>We do not need to expose the predictive model to intermediate diffusion states.
• Score: 39.460272573196896
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: It is difficult to anticipate the myriad challenges that a predictive model will encounter once deployed. Common practice entails a reactive, cyclical approach: model deployment, data mining, and retraining. We instead develop a proactive longtail discovery process by imagining additional data during training. In particular, we develop general model-based longtail signals, including a differentiable, single forward pass formulation of epistemic uncertainty that does not impact model parameters or predictive performance but can flag rare or hard inputs. We leverage these signals as guidance to generate additional training data from a latent diffusion model in a process we call Longtail Guidance (LTG). Crucially, we can perform LTG without retraining the diffusion model or the predictive model, and we do not need to expose the predictive model to intermediate diffusion states. Data generated by LTG exhibit semantically meaningful variation, yield significant generalization improvements on numerous image classification benchmarks, and can be analyzed by a VLM to proactively discover, textually explain, and address conceptual gaps in a deployed predictive model.

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