Multi-task Crowdsourcing via an Optimization Framework
Multi-task Crowdsourcing via an Optimization Framework
复制标题
通过优化框架的多任务众包
DOI:
10.1145/3310227
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发表时间:
2019
影响因子:
3.6
通讯作者:
He, Jingrui
中科院分区:
文献类型:
--
作者:
Zhou, Yao;Ying, Lei;He, Jingrui
The unprecedented amounts of data have catalyzed the trend of combining human insights with machine learning techniques, which facilitate the use of crowdsourcing to enlist label information both effectively and efficiently. One crucial challenge in crowdsourcing is the diverse worker quality, which determines the accuracy of the label information provided by such workers. Motivated by the observations that same set of tasks are typically labeled by the same set of workers, we studied their behaviors across multiple related tasks and proposed an optimization framework for learning from task and worker dual heterogeneity. The proposed method uses a weight tensor to represent the workers’ behaviors across multiple tasks, and seeks to find the optimal solution of the tensor by exploiting its structured information. Then, we propose an iterative algorithm to solve the optimization problem and analyze its computational complexity. To infer the true label of an example, we construct a worker ensemble based on the estimated tensor, whose decisions will be weighted using a set of entropy weight. We also prove that the gradient of the most time-consuming updating block is separable with respect to the workers, which leads to a randomized algorithm with faster speed. Moreover, we extend the learning framework to accommodate to the multi-class setting. Finally, we test the performance of our framework on several datasets, and demonstrate its superiority over state-of-the-art techniques.
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DOI:
10.1145/3219819.3219968
发表时间:
2018-07
期刊:
Proceedings of the 24th ACM SIGKDD International Conference on Knowledge Discovery & Data Mining
影响因子:
--
作者:
Dawei Zhou;Jingrui He;Hongxia Yang;Wei Fan
通讯作者:
Dawei Zhou;Jingrui He;Hongxia Yang;Wei Fan
DOI:
10.1145/3097983.3098015
发表时间:
2017-08
期刊:
Proceedings of the 23rd ACM SIGKDD International Conference on Knowledge Discovery and Data Mining
影响因子:
--
作者:
Dawei Zhou;Si Zhang;M. Yildirim;S. Alcorn;Hanghang Tong;H. Davulcu;Jingrui He
通讯作者:
Dawei Zhou;Si Zhang;M. Yildirim;S. Alcorn;Hanghang Tong;H. Davulcu;Jingrui He
DOI:
10.1145/2339530.2339581
发表时间:
2012-08
期刊:
--
影响因子:
--
作者:
Yao Hu;Debing Zhang;Jun Liu;Jieping Ye;Xiaofei He
通讯作者:
Yao Hu;Debing Zhang;Jun Liu;Jieping Ye;Xiaofei He
DOI:
--
发表时间:
2013
期刊:
IEEE International Conference on Multimedia and Expo
影响因子:
--
作者:
Yao Zhou;Jiebo Luo
通讯作者:
Jiebo Luo
DOI:
10.1137/1.9781611975673.2
发表时间:
2019-01
期刊:
--
影响因子:
--
作者:
Lecheng Zheng;Yu Cheng;Jingrui He
通讯作者:
Lecheng Zheng;Yu Cheng;Jingrui He