Zhi Hou Tianyi Zhang Yuwen Xiong Haonan Duan 0001 Hengjun Pu Ronglei Tong Chengyang Zhao Xizhou Zhu Yu Qiao 0001 Jifeng Dai Yuntao Chen Dita: Scaling Diffusion Transformer for Generalist Vision-Language-Action Policy. 2025 March abs/2503.19757 CoRR https://doi.org/10.48550/arXiv.2503.19757 db/journals/corr/corr2503.html#abs-2503-19757 streams/journals/corr