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CrowdService: Optimizing Mobile Crowdsourcing and Service Composition

Peng, Xin; Gu, Lingxiao; Tan, Tian Huat; Sun, Jun; Yu, Yijun; Nuseibeh, Bashar and Zhao, Wenyun (2017). CrowdService: Optimizing Mobile Crowdsourcing and Service Composition. ACM Transactions on Internet Technology (TOIT), 18(2), article no. 19.

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Some user needs can only be met by leveraging the capabilities of others to undertake particular tasks that require intelligence and labor. Crowdsourcing such capabilities is one way to achieve this. But providing a service that leverages crowd intelligence and labor is a challenge, since various factors need to be considered to enable reliable service provisioning. For example, the selection of an optimal set of workers from those who bid to perform a task needs to be made based on their reliability, expected reward, and distance to the target locations. Moreover, for an application involving multiple services, the overall cost and time constraints must be optimally allocated to each involved service. In this paper, we develop a framework, named CROWDSERVICE, which supplies crowd intelligence and labor as publicly accessible crowd services via mobile crowdsourcing. The paper extends our earlier work by providing an approach for constraints synthesis and worker selection. It employs a genetic algorithm to dynamically synthesize and update near-optimal cost and time constraints for each crowd service involved in a composite service, and selects a near-optimal set of workers for each crowd service to be executed. We implement the proposed framework on Android platforms, and evaluate its effectiveness, scalability and usability in both experimental and user studies.

Item Type: Journal Item
Copyright Holders: 2017 ACM
ISSN: 1557-6051
Project Funding Details:
Funded Project NameProject IDFunding Body
Adaptive Security And Privacy (XC-11-004-BN)291652EC (European Commission): FP (inc.Horizon2020 & ERC schemes)
Extra Information: 23 pp.
Keywords: crowdsourcing; collaborative computing systems and tools; social computing systems; mobile computing; service composition; reliability
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Computing and Communications
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Centre for Research in Computing (CRC)
International Development & Inclusive Innovation
Health and Wellbeing PRA (Priority Research Area)
Related URLs:
Item ID: 49854
Depositing User: Yijun Yu
Date Deposited: 27 Jun 2017 12:44
Last Modified: 07 Dec 2018 22:47
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