arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.03992cs.GT
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通过对等预测实现真实的数据采集

Truthful Data Acquisition via Peer Prediction

Yiling Chen, Yiheng Shen, Shuran Zheng

摘要:

我们考虑为机器学习或统计估计购买数据的问题。数据分析师有预算从多个数据提供商购买数据集。她没有任何测试数据可用于评估所收集的数据,并且可以仅基于所收集的数据集向数据提供者分配付款。我们在标准贝叶斯范式和两种情况下考虑这个问题:(1)数据只收集一次;(2)数据被重复收集,每天的数据都独立于同一分布。对于这两种设置,我们的机制保证,如实报告自己的数据集始终是一个均衡,采用技术从同行预测:支付每个供应商之间的互信息,他报告的数据和其他供应商的报告数据。根据数据分布情况,这些机制还可以阻止可能导致预测不准确的误报。我们的机制还保证了第一种设置中某些基本分布和第二种设置中所有分布的个人合理性和预算可行性。

英文摘要:

We consider the problem of purchasing data for machine learning or statistical estimation. The data analyst has a budget to purchase datasets from multiple data providers. She does not have any test data that can be used to evaluate the collected data and can assign payments to data providers solely based on the collected datasets. We consider the problem in the standard Bayesian paradigm and in two settings: (1) data are only collected once; (2) data are collected repeatedly and each day's data are drawn independently from the same distribution. For both settings, our mechanisms guarantee that truthfully reporting one's dataset is always an equilibrium by adopting techniques from peer prediction: pay each provider the mutual information between his reported data and other providers' reported data. Depending on the data distribution, the mechanisms can also discourage misreports that would lead to inaccurate predictions. Our mechanisms also guarantee individual rationality and budget feasibility for certain underlying distributions in the first setting and for all distributions in the second setting.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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