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Yixian Xu

4 accepted papers

2026

Diagnosing and Improving Diffusion Models by Estimating Optimal Loss Value

ICLR 2026poster

Diffusion models have achieved remarkable success in generative modeling. Despite more stable training, the loss of diffusion models is not indicative of absolute data-fitting quality, since its optimal value is typically not zero but unknown, leading to the confusion between large optimal loss and…

Cited by 0SourceScholar
2024

Bridging Geometric States via Geometric Diffusion Bridge

NeurIPS 2024poster

The accurate prediction of geometric state evolution in complex systems is critical for advancing scientific domains such as quantum chemistry and material modeling. Traditional experimental and computational methods face challenges in terms of environmental constraints and computational demands, wh…

Cited by 2SourcePDFScholar
2023

One Transformer Can Understand Both 2D & 3D Molecular Data

ICLR 2023poster

Unlike vision and language data which usually has a unique format, molecules can naturally be characterized using different chemical formulations. One can view a molecule as a 2D graph or define it as a collection of atoms located in a 3D space. For molecular representation learning, most previous w…