Shui Yunhao

Shui Yunhao

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Publications

You can also find my articles on my Google Scholar profile.

Conference Papers

Diffusion-NPO: Negative Preference Optimization for Better Preference Aligned Generation of Diffusion Models

Published in The Thirteenth International Conference on Learning Representations, 2025

Diffusion models have made substantial advances in image generation, yet models trained on large, unfiltered datasets often yield outputs misaligned with human preferences. Numerous methods have already been proposed to fine-tune pre-trained diffusion models, achieving notable improvements in aligning generated outputs with human preferences. However, we point out that existing preference alignment methods neglect the critical role of handling unconditional/negative-conditional outputs, leading to a diminished capacity to avoid generating undesirable outcomes.

Recommended citation: Fu-Yun Wang, Yunhao Shui, Jingtan Piao, Keqiang Sun, Hongsheng Li. (2025). "Diffusion-NPO: Negative Preference Optimization for Better Preference Aligned Generation of Diffusion Models." The Thirteenth International Conference on Learning Representations.
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FlameGS: Reconstruct Flame Light Field via Gaussian Splatting

Published in arXiv preprint arXiv:2412.19841, 2024

To address the time-consuming and computationally intensive issues of traditional ART algorithms for flame combustion diagnosis, inspired by flame simulation technology, we propose a novel representation method for flames. By modeling the luminous process of flames and utilizing 2D projection images for supervision, our experimental validation shows that this model achieves an average structural similarity index of 0.96 between actual images and predicted 2D projections, along with a Peak Signal-to-Noise Ratio of 39.05. Additionally, it saves approximately 34 times the computation time and about 10 times the memory compared to traditional algorithms.

Recommended citation: Yunhao Shui, Fuhao Zhang, Can Gao, Hao Xue, Zhiyin Ma, Gang Xun, Xuesong Li. (2024). "FlameGS: Reconstruct Flame Light Field via Gaussian Splatting." arXiv preprint arXiv:2412.19841.
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