DataMaster: When AI Becomes Its Own Data Engineer

DataMaster：当AI开始成为自己的数据工程师

DataMaster searches, cleans, and combines data while keeping the model and training algorithm fixed; on MLE-Bench Lite, it raised the medal rate from 35.91% to 68.18%.

Why it matters: HKR-H/K/R all pass: DataMaster changes the data pipeline under fixed model and training code, lifting MLE-Bench Lite medal rate from 35.91% to 68.18%. This is still a single research release without production validation, so it lands at 78 featured.