On the effects of user ratings on the profitability of cloud services

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dc.contributor.author Taghavi, Mona
dc.contributor.author Bentahar, Jamal
dc.contributor.author Otrok, Hadi
dc.contributor.author Abdel Wahab, Omar
dc.contributor.author Mourad, Azzam
dc.date.accessioned 2018-08-14T09:39:24Z
dc.date.available 2018-08-14T09:39:24Z
dc.date.copyright 2017 en_US
dc.date.issued 2018-08-14
dc.identifier.isbn 9781538607527 en_US
dc.identifier.uri http://hdl.handle.net/10725/8321
dc.description.abstract In todays cloud market, providers are taking advantage of consumer reviews and ratings as a new marketing tool to establish their credibility. However, to achieve higher ratings, they need to enhance their service quality which comes with an additional cost. In this paper, we model this conflicting situation as a Stackelberg game between a typical service provider and multiple service users in a cloud environment. The strategy of the service provider is to adjust the price and IT capacity by predicting the users ratings as well as their demands variation in response to his given price, quality and rating. The game is solved through a backward induction procedure using Lagrange function and Kuhn-Tucker conditions. To evaluate the proposed model, we performed experiments on three real world service providers who have low, medium and high average of users' ratings, obtained from the Trust Feedback Dataset in the Cloud Armor project. The results show that improvement in ratings is mostly profitable for highly rated providers. The surprising point is that providers having low ratings do not get much benefit from increasing their average ratings, meanwhile, they can perform well when they lower the service price. en_US
dc.language.iso en en_US
dc.publisher IEEE Xplore en_US
dc.title On the effects of user ratings on the profitability of cloud services en_US
dc.type Conference Paper / Proceeding en_US
dc.author.school SAS en_US
dc.author.idnumber 200904853 en_US
dc.author.department Computer Science and Mathematics en_US
dc.description.embargo N/A en_US
dc.keywords Stackelberg game en_US
dc.keywords Cloud service en_US
dc.keywords Provider profit en_US
dc.keywords User satisfaction en_US
dc.keywords Rating prediction en_US
dc.keywords Service pricing en_US
dc.identifier.doi http://dx.doi.org/10.1109/ICWS.2017.8 en_US
dc.identifier.ctation Taghavi, M., Bentahar, J., Otrok, H., Wahab, O. A., & Mourad, A. (2017, June). On the Effects of User Ratings on the Profitability of Cloud Services. In Web Services (ICWS), 2017 IEEE International Conference on (pp. 1-8). IEEE. en_US
dc.author.email azzam.mourad@lau.edu.lb en_US
dc.conference.date 25-30 June 2017 en_US
dc.conference.place Honolulu, HI, USA en_US
dc.conference.title 2017 IEEE International Conference on Web Services (ICWS) en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url https://ieeexplore.ieee.org/abstract/document/8029738/ en_US
dc.orcid.id https://orcid.org/0000-0001-9434-5322 en_US
dc.publication.date 2017 en_US
dc.author.affiliation Lebanese American University en_US

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