aiqbench analysis
GILC introduces a plug-and-play framework that stabilizes controllable generation in discrete diffusion models by using gradient-informed logit correction without requiring retraining or fine-tuning. By employing a Jacobian-free mechanism, the method effectively handles high-dimensional discrete spaces while accommodating both differentiable and non-differentiable reward functions across tasks like protein sequence generation. This approach offers an efficient alternative to computationally expensive optimization methods for researchers working on generative AI models.
Plug-and-Play Guidance for Discrete Diffusion Models via Gradient-Informed Logit Correction
arXiv:2606.06303v2 Announce Type: replace-cross Abstract: Controllable generation with discrete diffusion models is often hindered by high computational overhead or the need for retraining. In this paper, we present \underline{\textbf{G}}radient-\underline{\textbf{I}}nformed \underline{\textbf{L}}ogit \underline{\textbf{C}}orrection (\textbf{GILC}), a plug-and-play framework that efficiently estimates guidance signals by repurposing the pretrained denoising network as a variational proxy. To circumvent the gradient instability inherent in high-dimensional discrete spaces, we introduce a Jacobian-free mechanism that directly corrects the clean prediction logits, facilitating stable and effective guidance. Our method accommodates both differentiable and non-differentiable reward functions. Extensive experiments across DNA, protein sequence, and molecular generation tasks demonstrate that GILC achieves state-of-the-art performance without additional training, frequently outperforming fine-tuning approaches.
Abstract:Controllable generation with discrete diffusion models is often hindered by high computational overhead or the need for retraining. In this paper, we present \underline{\textbf{G}}radient-\underline{\textbf{I}}nformed \underline{\textbf{L}}ogit \underline{\textbf{C}}orrection (\textbf{GILC}), a plug-and-play framework that efficiently estimates guidance signals by repurposing the pretrained denoising network as a variational proxy. To circumvent the gradient instability inherent in high-dimensional discrete spaces, we introduce a Jacobian-free mechanism that directly corrects the clean prediction logits, facilitating stable and effective guidance. Our method accommodates both differentiable and non-differentiable reward functions. Extensive experiments across DNA, protein sequence, and molecular generation tasks demonstrate that GILC achieves state-of-the-art performance without additional training, frequently outperforming fine-tuning approaches.
Machine Learning (cs.LG); Artificial Intelligence (cs.AI)
arXiv:2606.06303 [cs.LG]
(or arXiv:2606.06303v2 [cs.LG] for this version)
https://doi.org/10.48550/arXiv.2606.06303 Focus to learn more arXiv-issued DOI via DataCite
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