Small Profits and Quick Returns: An Incentive Mechanism Design for Crowdsourcing Under Continuous Platform Competition
- Authors
- Baek, Duin; Chen, Jing; Choi, Bong Jun
- Issue Date
- Jan-2020
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Crowdsourcing; distributed computing; incentive mechanism
- Citation
- IEEE INTERNET OF THINGS JOURNAL, v.7, no.1, pp.349 - 362
- Journal Title
- IEEE INTERNET OF THINGS JOURNAL
- Volume
- 7
- Number
- 1
- Start Page
- 349
- End Page
- 362
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/38812
- DOI
- 10.1109/JIOT.2019.2953278
- ISSN
- 2327-4662
- Abstract
- Crowdsourcing can be applied to provide scalable and efficient services to support various tasks. As the driving force of crowdsourcing is the interaction among participants, various incentive mechanisms have been proposed to attract and retain a sufficient number of participants to provide a sustainable crowdsourcing service. However, there exist some gaps between the modeled entities or markets in the existing works and those in reality: 1) dichotomous task valuation and workers' punctuality and 2) crowdsourcing service market monopolized by a platform. To bridge those gaps of such impractical assumption, we model workers' heterogeneous punctuality behavior and task depreciation over time. Based on those models, we propose an expected social welfare maximizing (ESWM) mechanism that aims to maximize the expected social welfare (ESW) by attracting and retaining more participants in the long term, i.e., multiple rounds of crowdsourcing. In the evaluation, we modeled the continuous competition between the ESWM and one of the existing works in both short-term and long-term scenarios. The simulation results show that the ESWM mechanism achieves higher ESW and platform utility than the benchmark by attracting and retaining more participants. Moreover, we prove that the ESWM mechanism achieves the desirable economic properties: individual rationality, budget balance, computational efficiency, and truthfulness.
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