Trust Model for Optimized Cloud Services

Pawar, P. S., Rajarajan, M., Nair, S. K. & Zisman, A. (2012). Trust Model for Optimized Cloud Services. IFIP Advances in Information and Communication Technology, 374, pp. 97-112. doi: 10.1007/978-3-642-29852-3_7

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Abstract

Cloud computing with its inherent advantages draws attention for business critical applications, but concurrently expects high level of trust in cloud service providers. Reputation-based trust is emerging as a good choice to model trust of cloud service providers based on available evidence. Many existing reputation based systems either ignore or give less importance to uncertainty linked with the evidence. In this paper, we propose an uncertainty model and define our approach to compute opinion for cloud service providers. Using subjective logic operators along with the computed opinion values, we propose mechanisms to calculate the reputation of cloud service providers. We evaluate and compare our proposed model with existing reputation models.

Item Type: Article
Uncontrolled Keywords: Cloud, Trust, Reputation, SLA, Subjective logic
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: School of Engineering & Mathematical Sciences > Engineering
School of Informatics > Department of Computing
URI: http://openaccess.city.ac.uk/id/eprint/1606

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