@inproceedings{wang2026urge,
  title         = {Simple Approximation and Derivative Free Inference-Time Scaling for Diffusion Models via Sequential Monte Carlo on Path Measures},
  author        = {Wang, Chenyang and Wang, Weizhong and Ren, Yinuo and Blanchet, Jose and Lu, Yiping},
  booktitle     = {Proceedings of the 43rd International Conference on Machine Learning},
  series        = {Proceedings of Machine Learning Research},
  volume        = {306},
  year          = {2026},
  eprint        = {2605.17850},
  archivePrefix = {arXiv}
}