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Image Credit: Arxiv

SPARKE: Scalable Prompt-Aware Diversity Guidance in Diffusion Models via RKE Score

  • Diffusion models have been successful in high-fidelity image synthesis and prompt-guided generative modeling.
  • Ensuring diversity in generated samples of prompt-guided diffusion models is a challenge, especially with broad semantic prompts.
  • Recent methods introduced diversity measures for varied generations.
  • The SPARKE method is proposed for prompt-aware diversity guidance, using conditional entropy.
  • SPARKE enables prompt-aware diversity control by dynamically conditioning diversity measurement on similar prompts.
  • Entropy computation in SPARKE poses challenges in large-scale generation, but the method focuses on Conditional latent RKE Score Guidance to address this.
  • The reduced computation complexity in SPARKE allows for diversity-guided sampling over many generation rounds on different prompts.
  • Numerical testing on text-to-image diffusion models shows that SPARKE improves prompt-aware diversity without significant computational costs.
  • The code for the SPARKE method is available on the project page: https://mjalali.github.io/SPARKE

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