The paper introduces Best‑of‑N Guidance (BoNG), a method that embeds the Best‑of‑N sampling principle directly into the reverse diffusion process of generative models. By performing online BoN selection over denoising particles and using the current best particle as a guidance signal, BoNG steers the particle population toward higher‑reward regions during generation. Empirical results show that BoNG outperforms both standard BoN and SMC across 36 comparisons, achieving the best performance in 29 cases and supporting multi‑output generation with significant speedup.
By Richard Lee Kim, Yeongmin Kim, Gyuwon Sim, Taekyu Kim, Minsang Park, Il-chul Moon
The paper introduces “Spend Where It Matters”, a two‑stage, training‑free framework that combines particle search with Metropolis‑Hastings refinement for budget‑constrained audio‑visual alignment. In the first stage, particles are adaptively allocated across denoising checkpoints based on online variance estimates, reducing estimation variance while focusing compute where it matters most. The second stage uses MH refinement with local noise‑and‑denoise proposals to further improve reward, starting from the strong candidate produced by the particle search. Experiments on “JavisBench‑Mini” show that this combined approach yields higher rewards than either particle search or MH alone, achieving significant relative gains over baseline methods. The method also demonstrates benefits for image generation on SD1.5, improving aesthetic and image reward scores compared to uniform particle allocation.
By Shivanshu Shekhar, Raghavendra Addanki, Tong Zhang, Uttaran Bhattacharya
arXiv:2610.17266v1 Announce Type: new
Abstract: Diffusion language models are a promising and more efficient alternative to autoregressive models. However, most RL post-training techniques are not ea...
By Vaibhav Singh, Eugene Belilovsky
arXiv:2610.00544v1 Announce Type: new
Abstract: Streaming world models should render a place consistently across repeated visits. Directly supervising such revisits requires training samples that cap...
By Tingting Liao, Xuezhi Liang, Hao Li, Guangyi Liu
Speculative Forcing is a framework for efficient autoregressive video generation that treats intermediate clean estimates as drafts and predicts when individual tokens can be safely accepted early. Tokens that are accepted are frozen and no longer undergo further denoising, while their cached keys and values remain available for context. Two verifier designs—one training‑free based on similarity and stability, and one learned that uses intermediate features—enable this selective refinement, preserving full‑step quality while reducing computation across short‑video, long‑video, and world generation tasks.
By Hyunwook Choi, Seungryong Kim, Dongyoon Han, Sangdoo Yun
arXiv:2609.39096v1 Announce Type: new
Abstract: Autoregressive video diffusion supports streaming generation and interactive control, but its KV cache grows with the generated history. Existing compr...
By Zeqi Xiao, Qingle Liu, Kaiwen Zhang, Yifan Zhou, Zihan Ding, Xingang Pan