The work defines a family of surrogate losses for generative models and LLMs whose on-policy gradients match those of any f-divergence while sharing the same off-policy minimizer as the original MSE loss.
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$f$-Trajectory Balance: A Loss Family for Tuning GFlowNets, Generative Models, and LLMs with Off- and On-Policy Data
The work defines a family of surrogate losses for generative models and LLMs whose on-policy gradients match those of any f-divergence while sharing the same off-policy minimizer as the original MSE loss.