A Permutation-Based Model for Crowd Labeling: Optimal Estimation and Robustness
A Permutation-Based Model for Crowd Labeling: Optimal Estimation and Robustness
复制标题
基于排列的人群标记模型:最优估计和鲁棒性
DOI:
10.1109/tit.2020.3045613
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发表时间:
2016
影响因子:
2.5
通讯作者:
M. Wainwright
中科院分区:
文献类型:
--
作者:
Nihar B. Shah;Sivaraman Balakrishnan;M. Wainwright
The task of aggregating and denoising crowd-labeled data has gained increased significance with the advent of crowdsourcing platforms and massive datasets. We propose a permutation-based model for crowd labeled data that is a significant generalization of the classical Dawid-Skene model, and introduce a new error metric by which to compare different estimators. We derive global minimax rates for the permutation-based model that are sharp up to logarithmic factors, and match the minimax lower bounds derived under the simpler Dawid-Skene model. We then design two computationally-efficient estimators: the WAN estimator for the setting where the ordering of workers in terms of their abilities is approximately known, and the OBI- WAN estimator where that is not known. For each of these estimators, we provide non-asymptotic bounds on their performance. We conduct synthetic simulations and experiments on real-world crowdsourcing data, and the experimental results corroborate our theoretical findings.
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DOI:
--
发表时间:
2019-12
期刊:
--
影响因子:
--
作者:
Ivan Stelmakh;Nihar B. Shah;Aarti Singh
通讯作者:
Ivan Stelmakh;Nihar B. Shah;Aarti Singh
影响因子:
1.5
作者:
Flammarion, Nicolas;Mao, Cheng;Rigollet, Philippe
通讯作者:
Rigollet, Philippe
DOI:
--
发表时间:
2018-06
期刊:
J. Mach. Learn. Res.
影响因子:
--
作者:
Ivan Stelmakh;Nihar B. Shah;Aarti Singh
通讯作者:
Ivan Stelmakh;Nihar B. Shah;Aarti Singh
DOI:
--
发表时间:
2019
期刊:
AAMAS Conference proceedings
影响因子:
--
作者:
Wang, J;Shah, N
通讯作者:
Shah, N