A Sustainable Strategy for Multi-Cloud Service Composition Based on Formal Concept Analysis

Multi-cloud composed by multiple clouds environment can take advantages of cloud computing which is becoming increasingly popular among new scientific and technological undertakings. The requested services of users could often be distributed across some providers hosted by several clouds. The multi-cloud services composition problem requires new scalable approaches to efficiently perform searching to reduce the energy consumption and monetary cost for fulfilling user's request. In this paper, we present a sustainable strategy for multi-cloud service composition, using Formal Concept Analysis and social network by considering some critical factors such as energy consumption between clouds, monetary cost and trust between users and clouds. In addition, a novel algorithm is proposed regarding to the sustainable multi-cloud service composition. We also evaluated the proposed approach through experiments and the results reveal the feasibility and effectiveness of our approach. Finally, we point out future directions for the selection of cloud providers.