DataMaster: Data-Centric Autonomous AI Research

Fuente: arXiv
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Auteurs principaux: Du, Yaxin, Yang, Xiyuan, Zhou, Zhifan, Liu, Wanxu, Lei, Zixing, Chen, Zimeng, Liu, Fenyi, Wu, Haotian, Cai, Yuzhu, Liu, Zexi, Zhu, Xinyu, Wang, WenHao, Zhang, Linfeng, Qian, Chen, Chen, Siheng
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Publié: 2026
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author Du, Yaxin
Yang, Xiyuan
Zhou, Zhifan
Liu, Wanxu
Lei, Zixing
Chen, Zimeng
Liu, Fenyi
Wu, Haotian
Cai, Yuzhu
Liu, Zexi
Zhu, Xinyu
Wang, WenHao
Zhang, Linfeng
Qian, Chen
Chen, Siheng
author_facet Du, Yaxin
Yang, Xiyuan
Zhou, Zhifan
Liu, Wanxu
Lei, Zixing
Chen, Zimeng
Liu, Fenyi
Wu, Haotian
Cai, Yuzhu
Liu, Zexi
Zhu, Xinyu
Wang, WenHao
Zhang, Linfeng
Qian, Chen
Chen, Siheng
contents As model families, training recipes, and compute budgets become increasingly standardized, further gains in machine learning systems depend increasingly on data. Yet data engineering remains largely manual and ad hoc: practitioners repeatedly search for external datasets, adapt them to existing pipelines, validate candidate data through downstream training, and carry forward lessons from prior attempts. We study task-conditioned autonomous data engineering, where an autonomous agent improves a fixed learning algorithm by optimizing only the data side, including external data discovery, data selection and composition, cleaning and transformation. The goal is to obtain a stronger downstream solution while leaving the learning algorithm unchanged. To address the open-ended search space, branch-dependent refinement, and delayed validation inherent in autonomous data engineering, we propose DataMaster, a data-agent framework that integrates tree-structured search, shared candidate data, and cumulative memory. DataMaster consists of three key components: a DataTree that organizes alternative data-engineering branches, a shared Data Pool that stores discovered external data sources for reuse, and a Global Memory that records node outcomes, artifacts, and reusable findings. Together, these components allow the agent to discover candidate data, construct executable training inputs, evaluate them through downstream feedback, and carry useful evidence across branches. We evaluate DataMaster on two types of benchmarks, MLE-Bench Lite and PostTrainBench. On MLE-Bench Lite, it improves medal rate by 32.27% over the initial score; on PostTrainBench, it surpasses the instruct model on GPQA (31.02% vs 30.35%).
format Preprint
id arxiv_https___arxiv_org_abs_2605_10906
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle DataMaster: Data-Centric Autonomous AI Research
Du, Yaxin
Yang, Xiyuan
Zhou, Zhifan
Liu, Wanxu
Lei, Zixing
Chen, Zimeng
Liu, Fenyi
Wu, Haotian
Cai, Yuzhu
Liu, Zexi
Zhu, Xinyu
Wang, WenHao
Zhang, Linfeng
Qian, Chen
Chen, Siheng
Machine Learning
Artificial Intelligence
As model families, training recipes, and compute budgets become increasingly standardized, further gains in machine learning systems depend increasingly on data. Yet data engineering remains largely manual and ad hoc: practitioners repeatedly search for external datasets, adapt them to existing pipelines, validate candidate data through downstream training, and carry forward lessons from prior attempts. We study task-conditioned autonomous data engineering, where an autonomous agent improves a fixed learning algorithm by optimizing only the data side, including external data discovery, data selection and composition, cleaning and transformation. The goal is to obtain a stronger downstream solution while leaving the learning algorithm unchanged. To address the open-ended search space, branch-dependent refinement, and delayed validation inherent in autonomous data engineering, we propose DataMaster, a data-agent framework that integrates tree-structured search, shared candidate data, and cumulative memory. DataMaster consists of three key components: a DataTree that organizes alternative data-engineering branches, a shared Data Pool that stores discovered external data sources for reuse, and a Global Memory that records node outcomes, artifacts, and reusable findings. Together, these components allow the agent to discover candidate data, construct executable training inputs, evaluate them through downstream feedback, and carry useful evidence across branches. We evaluate DataMaster on two types of benchmarks, MLE-Bench Lite and PostTrainBench. On MLE-Bench Lite, it improves medal rate by 32.27% over the initial score; on PostTrainBench, it surpasses the instruct model on GPQA (31.02% vs 30.35%).
title DataMaster: Data-Centric Autonomous AI Research
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2605.10906