DataMaster: Data-Centric Autonomous AI Research. - Yaxin Du; Xiyuan Yang; Zhifan Zhou; Wanxu Liu; Zixing Lei; Zimeng Chen; Fenyi Liu; Haotian Wu; Yuzhu Cai; Zexi Liu; Xinyu Zhu; WenHao Wang; et al. (CoRR, 2026)