Wang, Zerun, Jiafeng Mao, Xueting Wang, and Toshihiko Yamasaki. 2026. “Difficulty Controlled Diffusion Model for Synthesizing Effective Training Data”. Proceedings of the AAAI Conference on Artificial Intelligence 40 (12):10367-75. https://doi.org/10.1609/aaai.v40i12.38007.