GUDA: Counterfactual Group-wise Training Data Attribution for Diffusion Models via Unlearning
Researchers introduce GUDA, a machine unlearning-based method for attributing influence of training data groups to outputs in diffusion models. The approach approximates counterfactual scenarios without expensive full retraining, achieving ~100x speedup while more reliably identifying which artistic styles or object classes contributed to generated images compared to existing attribution methods.