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将员工的专业知识与任务相匹配:异质性中的激励

Matching Workers Expertise with Tasks: Incentives in Heterogeneous
课程网址: https://videolectures.net/videos/nipsworkshops2013_nikzad_experti...  
主讲教师: Afshin Nikzad
开课单位: 信息不详。欢迎您在右侧留言补充。
开课时间: 2019-10-05
课程语种: 英语
中文简介:
设计最优的定价政策和机制,将任务分配给员工,是在线众包市场的核心。在本文中,我们考虑了以下在线众包市场的现实环境——我们被赋予了一组需要特定技能的异构任务;每个员工都有一定的专业知识和兴趣,这决定了她感兴趣和愿意做的一组任务。考虑到员工和任务之间的二分图,我们设计了TM-UNIFORM机制,将任务分配给员工,同时确保预算可行性、激励兼容性,并实现接近最优的效用。我们通过利用与在线广告词分配问题的联系进一步扩展了我们的结果,并提出了一种具有改进近似保证的随机机制TM-randomized。除了强有力的理论保证外,我们还使用Mechanical Turk对维基百科翻译项目的现实案例研究进行了广泛的模拟实验。我们的结果证明了我们的机制在网络上现实众包市场的实际适用性。我们注意到,这是第一篇从机制设计角度解决将任务与工人匹配这一问题的论文。之前的工作要么简单地假设任务是同质的,要么没有考虑二分图给出的匹配约束。
课程简介: Designing optimal pricing policies and mechanisms for allocating tasks to workers is central to the online crowdsourcing markets. In this paper, we consider the following realistic setting of online crowdsourcing markets - we are given a heterogeneous set of tasks requiring certain skills; each worker has certain expertise and interests which define the set of tasks she is interested in and willing to do. Given this bipartite graph between workers and tasks, we design our mechanism TM-UNIFORM which does the allocation of tasks to workers, while ensuring budget feasibility, incentive-compatibility and achieves near-optimal utility. We further extend our results by exploiting a link with online Adwords allocation problem and present a randomized mechanism TM-RANDOMIZED with improved approximation guarantees. Apart from strong theoretical guarantees, we carry out extensive experimentation using simulations on a realistic case study ofWikipedia translation project using Mechanical Turk. Our results demonstrate the practical applicability of our mechanisms for realistic crowdsourcing markets on the web. We note that this is the first paper that addresses this setting of matching tasks to workers from a mechanism design perspective. Previous work either made a simplifying assumption that tasks are homogeneous or didn’t consider the matching constraints given by the bipartite graph.
关 键 词: 定价政策; 众包市场; 异构任务
课程来源: videolectures
数据采集: 2025-05-29:yuhongrui
最后编审: 2025-05-29:yuhongrui
阅读次数: 4