Selected Publications

* indicates equal contribution.

Scaling and Distilling Text Embeddings for Better Diffusibility

arXiv Zekai Zhang, Yunjie Tian, Yanjin He, Xiaoyan Zhang, Dongdi Zhao, Qing Qu, Di Fu

We distill scaled text embeddings into a good latent for continuous diffusion language models.

Generalization of Diffusion Models Arises with a Balanced Representation Space

2026 Zekai Zhang*, Xiao Li*, Xiang Li, Lianghe Shi, Meng Wu, Molei Tao, Qing Qu

Learning good representations is central to novel and meaningful generative modelling.

A Closer Look at Model Collapse: From a Generalization-to-Memorization Perspective

2025 Lianghe Shi*, Meng Wu*, Huijie Zhang, Zekai Zhang, Molei Tao, Qing Qu

Diffusion models collapse to a low-diversity/quality mode when trained on their own outputs.

Understanding Representation Dynamics of Diffusion Models via Low-Dimensional Modeling

2025 Xiao Li*, Zekai Zhang*, Xiang Li, Siyi Chen, Zhihui Zhu, Peng Wang, Qing Qu

How time conditioning shapes diffusion representations and how it can diagnose overfitting.

Efficient Compression of Overparameterized Deep Models through Low-Dimensional Learning Dynamics

2024 Soo Min Kwon*, Zekai Zhang*, Dogyoon Song, Laura Balzano, Qing Qu