arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1812.09433cs.GT
收藏

广义彩票树:预算一致的众包激励树机制

Generalized Lottery Trees: Budget-Consistent Incentive Tree Mechanisms for Crowdsourcing

Dong Zhao, Huadong Ma, Xinna Ji

摘要:

激励机制设计近年来引起了众包应用的广泛关注。大多数研究假设参与者已经在系统中,并意识到众包任务的存在。而在没有这种假设的现实生活场景中,利用激励树机制来激励用户的直接贡献和对其他用户的请求是一种更有效的方式。虽然已经研究了一些这样的机制,但我们是第一个提出了非一致性激励树机制,称为广义彩票树,它要求所有参与者的总支出与宣布的预算一致,同时保证其他几个理想的属性,包括持续贡献激励,持续征求激励,价值与贡献成比例,无利可图的律师绕过,和无利可图的女巫袭击此外,我们提出了三种类型的广义lottree机制,1-Pachira,K-Pachira,共享Pachira,支持更多样化的需求。基于累积前景理论,为机制选择提供了坚实的理论指导。广泛的模拟和现实的82个用户的实验已经进行了证实我们的理论分析。

英文摘要:

Incentive mechanism design has aroused extensive attention for crowdsourcing applications in recent years. Most research assumes that participants are already in the system and aware of the existence of crowdsourcing tasks. Whereas in real life scenarios without this assumption, it is a more effective way to leverage incentive tree mechanisms that incentivize both users' direct contributions and solicitations to other users. Although some such mechanisms have been investigated, we are the first to propose budget-consistent incentive tree mechanisms, called generalized lottrees, which require the total payout to all participants to be consistent with the announced budget, while guaranteeing several other desirable properties including continuing contribution incentive, continuing solicitation incentive, value proportional to contribution, unprofitable solicitor bypassing, and unprofitable sybil attack. Moreover, we present three types of generalized lottree mechanisms, 1-Pachira, K-Pachira, and Sharing-Pachira, which support more diversified requirements. A solid theoretical guidance to the mechanism selection is provided as well based on the Cumulative Prospect Theory. Both extensive simulations and realistic experiments with 82 users have been conducted to confirm our theoretical analysis.

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。

↑